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Razer Viper Ultimate Mouse Review

Tested using Methodology v1.0
Updated Dec 21, 2020 at 05:38 pm
Razer Viper Ultimate Picture
8.1
Office/Multimedia
8.7
Video Games (FPS)
8.2
Video Games (MMO)
8.7
Ultra-Light Gaming
7.6
Travel
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Connectivity Wireless
Type
Standard

The Razer Viper Ultimate is an amazing gaming mouse that's very versatile and handles anything you throw at it. Its performance is excellent and the latency is extremely low, whether you use it wired or wirelessly. It has an ambidextrous design with two side buttons on each side, giving you plenty of programmable options. It feels durable, well-built, and remarkably comfortable, with a low back and rather short body. Its smaller size lends itself well to a fingertip grip, but small and medium-sized hands will also find it comfortable with a palm or a claw grip. It also comes with a unique charging station that acts as a receiver range extender for better performance.

Our Verdict

8.1 Office/Multimedia

The Razer Viper Ultimate Wireless is great for office use. It feels very well-made, is remarkably comfortable, and has an ambidextrous design with buttons on both sides. Its dedicated USB receiver also works as a charging dock, with RGB lighting that changes colors to let you know its battery level. You can reprogram every button according to your preferences, and set a HyperShift button to create a second layer of customized inputs if needed.

Pros
  • Well-built and almost universal design for all.
  • Buttons and settings are easily customizable.
  • Comfortable, ambidextrous design.
Cons
  • Not recommended for very large hands.
  • Only small and medium hands can use it with a palm grip.
8.7 Video Games (FPS)

The Razer Viper Ultimate is excellent for FPS games. The click latency, whether wired or wireless, is amazing, and even competitive gamers shouldn't notice any delay. It's also quite light, even if it doesn't have a honeycomb pattern. Its performance is excellent, and it's pretty consistent, especially when moved at fast speed. Most people should find it comfortable in a fingertip grip, but larger hands might have some issues with a palm or claw grip. It offers multiple customizable buttons, with two side buttons on each side.

Pros
  • Well-built and almost universal design for all.
  • Buttons and settings are easily customizable.
  • Very low latency, wired or wireless.
Cons
  • Not recommended for very large hands.
  • Only small and medium hands can use it with a palm grip.
8.2 Video Games (MMO)

The Razer Viper Ultimate is great for MMO games. It has a good amount of programmable buttons, although not as much as some dedicated MMO mice, which have a full side panel. Nevertheless, it has amazing performance and customization options. Its shape and size are better suited for a fingertip grip with almost any hand-size, and larger hands may find it uncomfortable with a palm or claw grip.

Pros
  • Well-built and almost universal design for all.
  • Buttons and settings are easily customizable.
  • Very low latency, wired or wireless.
Cons
  • Not recommended for very large hands.
  • Only small and medium hands can use it with a palm grip.
8.7 Ultra-Light Gaming

The Razer Viper Ultimate is excellent for ultra-light gaming. If you're looking for a very light mouse that doesn't have a typical honeycomb pattern design, this is a great option. It's lightweight, well-built, and has amazing performance which you can customize to your preference in the software. The latency, even wireless, is amazing and it feels very responsive.

Pros
  • Well-built and almost universal design for all.
  • Buttons and settings are easily customizable.
  • Very low latency, wired or wireless.
  • Fairly lightweight.
Cons
  • Not recommended for very large hands.
  • Only small and medium hands can use it with a palm grip.
7.6 Travel

The Razer Viper Ultimate is good for traveling. It isn't too tall and should fit in most laptop cases. It also has a built-in receiver slot, so you don't need to carry around its cable, making it great for working in tight spaces like on a plane.

Pros
  • Well-built and almost universal design for all.
  • Buttons and settings are easily customizable.
  • USB receiver storage within battery compartment.
  • Fairly lightweight.
Cons
  • Not recommended for very large hands.
  • Only small and medium hands can use it with a palm grip.
  • 8.1 Office/Multimedia
  • 8.7 Video Games (FPS)
  • 8.2 Video Games (MMO)
  • 8.7 Ultra-Light Gaming
  • 7.6 Travel
  1. Updated Nov 20, 2020: Adjusted the build quality score.
  2. Updated Oct 05, 2020: Fixed an error with the number of programmable inputs.
  3. Updated Oct 05, 2020: Converted to Test Bench 1.0.
  4. Updated Jun 15, 2020: We've retested the sensor performance on the mouse's software version 1.02.
  5. Updated Dec 20, 2019: Converted to Test Bench 0.8.1.
  6. Updated Dec 11, 2019: Review published.

Test Results

perceptual testing image
Design
Design
Style
Lighting Color RGB

The Razer Viper Ultimate has a fairly aggressive style, but with a nice, high-end gaming feel to it. The logo at the back is RGB-lit. It has an ambidextrous design with a low back. It comes with a proprietary charging cradle that's also RGB-lit at its base. You can either set the logo and the base to have the same lighting or individually assign them inside the software.

Design
Shape
Length 5.0" (127 mm)
Height 1.5" (38 mm)
Width 2.6" (66 mm)
Grip Width
62 mm
7.6
Design
Portability
Volume
19.47 inยณ (319 cmยณ)
Cable/Receiver Storing
Yes

The Razer Viper Ultimate is quite portable thanks to its design. It isn't too high, so you'll be able to toss it in a laptop bag without too much trouble. It also has a receiver storing slot under the mouse, so it's quite easy to bring it around without having the clutter of a cable.

Design
Weight
Maximum Weight With Wire
109 g
Maximum Weight Without Wire
75 g
Minimum Weight Without Wire
75 g
Weight Distribution
Centered
Extra Weights
No

Without its cable, the Razer Viper Ultimate is very light. It's one of the lightest wireless mice we've tested, and despite not having a honeycomb pattern design, it compares itself to some traditional ultra-light gaming mice, like the Glorious Model O Wireless.

8.0
Design
Build Quality

Update 11/20/2020: The left and right buttons squeak when you press them all the way down. We reduced the build quality score from 8.5 to 8 because of it.

The Razer Viper Ultimate's build quality is great. Although it's very lightweight and entirely made out of plastic, it feels durable and well-built. There's no wobble or gaps, but the left and right buttons squeak when you press them all the way down. The clicks feel sturdy and slightly different than what you get on most mice, which is probably due to the optical switches.

9.0
Design
Comfort Of Use
Right-handed
No
Left-handed
No
Ambidextrous
Yes
Coating
Matte
Finger Rest
No

The Razer Viper Ultimate is very comfortable. It has a true ambidextrous design with two side buttons on each side of the mouse. These buttons are also slightly further back on the mouse, which makes them more reachable than the G-Wolves Hati HT-M Classic Edition or the Glorious Model O. Since it doesn't have a high back, it's great for a fingertip grip, but it's not the best for bigger hands with a palm grip. If you prefer a right-slanted design rather than an ambidextrous one, check out the Glorious Model D Wireless, the Razer Basilisk Ultimate, or the Razer Basilisk X Hyperspeed for a cheaper alternative.

Design
Palm Grip: Hand Size Recommendation
Small Hand
Yes
Medium Hand
Yes
Large Hand
No
X.Large Hand
No

Due to its low-back design and fairly short body, the Razer Viper Ultimate is better suited for small and medium hands for a palm grip. People with larger hands won't feel as comfortable and their fingers might go past the two main click buttons.

Design
Claw Grip: Hand Size Recommendation
Small Hand
Yes
Medium Hand
Yes
Large Hand
Yes
X.Large Hand
No

With a claw grip, only people with extra-large hands will find it to be too small. When curling up your fingers, even large hands should feel comfortable controlling this mouse.

Design
Fingertip Grip: Hand Size Recommendation
Small Hand
No
Medium Hand
Yes
Large Hand
Yes
X.Large Hand
Yes

The Razer Viper Ultimate's design lends itself very well to the fingertip grip. Most people, other than some with very small hands, should have nice control over it using this grip.

7.0
Design
Wireless Versatility
Bluetooth
No
Receiver
Yes
Battery Type
Rechargeable
Use When Charging
Yes
On/Off Activation
Auto Off And On/Off Switch
Receiver Extender
Yes
Battery Indicator Yes

The Razer Viper Ultimate comes with a dedicated USB receiver to connect to your PC wirelessly. You can either put it inside the cradle, which acts as an extender, or plug it directly into your PC. The dock can also give you information regarding your mouse battery. If you're interested in a similar wireless gaming mouse but with Bluetooth support, check out the Razer Orochi V2.

8.5
Design
Cable
Cable Length 6.0 ft (1.8 m)
Cable Type
Paracord-like
Permanent Kink
No
Port Type: Mouse End
Micro USB
Port Type: PC End
USB

The Razer Viper Ultimate's cable is an improvement over older Razer products. It feels very similar to the Glorious Model O's cable. It's light, doesn't hold as many kinks, and feels better-made. It doesn't create any drag when moving it around, which is great. If you don't want a charging cradle and simply want this mouse in a wired design, check out the Razer Viper.

9.0
Design
Mouse Feet
Gliding Experience
Very Good
Material
Virgin Grade PTFE
Extra Included
No

The feet are remarkable. Theyโ€™re made of virgin grade PTFE and provide a very smooth gliding experience on a desk or mousepad. Their thickness is pretty standard, but their shape could bother some people as they arenโ€™t as round as other mice. It doesn't come with extra feet in the box, but you should be able to find some third party ones quite easily.

Design
In The Box

  • Razer Viper Ultimate mouse
  • USB receiver
  • Charging cradle
  • USB to micro-USB cable
  • Manuals

Control
Control
Sensor Specifications
Sensor Technology
Optical (LED)
Sensor Model
Focus+
Works On Glass
No
Minimum CPI (DPI)
100 CPI
Maximum CPI (DPI)
20,000 CPI
CPI (DPI) Adjustment Steps
50 CPI
CPI (DPI) Variation
6%
Minimum Lift Off Distance
1.2 mm
Maximum Polling Rate
1000 Hz

The Razer Viper Ultimate's sensor has a very wide CPI range and you can adjust the sensitivity in small increments. The set CPI is pretty consistent, whether you move your mouse slowly or quickly. You can adjust the polling rate to 125Hz, 500Hz, or 1000Hz, and the lift-off distance is small enough that the sensor shouldnโ€™t track your movement when you're repositioning your mouse. If you like its shape but want something wired with an 8000Hz polling rate, check out the Razer Viper 8KHz.

8.3
Control
Buttons
Buttons Activation
Optical And Mechanical
Total Number Of Buttons
8
Number Of Side Buttons
4
Number Of Programmable Inputs
18
Profile Switching Button
Yes
CPI (DPI) Switching Button
Yes
Gesture Support
No

The Razer Viper Ultimate has a great number of buttons, including two additional ones on each side. You can reprogram every button to whatever you like, even the scroll up and down. You can even reassign the left click, as long as the left click action is assigned to another button. You can also set a HyperShift button, which enables another layer of programmable inputs, increasing your customization possibilities.

Control
Mouse Wheel
Scroll Wheel
Notched Wheel
Scroll Wheel Steps
24 Steps
Scroll Wheel Tilt
No
Thumb Wheel
No
Thumb Wheel Steps
No Thumb Wheel

The Razer Viper Ultimate's scroll wheel is pretty standard compared to other gaming mice. Its incremented design offers great feedback that feels good while gaming but isn't ideal for fast scrolling through long documents.

Control
Noise
Click Noise
Loud

The mouse clicks are loud, but they shouldn't disturb people around you unless you're in a very noise-sensitive environment.

8.7
Control
Click Latency
Click Latency: Receiver
9 ms
Click Latency: Bluetooth
N/A
Click Latency: Wired
7 ms

The Razer Viper Ultimate's click latency, both wired and wireless, is amazing, and even most competitive gamers shouldn't notice any delay when playing.

Operating System And Software
8.0
Operating System And Software
Compatible Software Option
Software Name Razer Synapse 3
Software Windows Compatibility
Yes
Software macOS Compatibility
No
Account Needed
No
On-Board Memory
Yes
CPI (DPI) Adjustment
Yes
Polling Rate Adjustment
Yes
Profile Configuration
Yes
RGB On/Off
Yes

The Razer Synapse 3 software is great and very user-friendly. You can easily customize most aspects of the mouse through it, and you can save your settings on the onboard memory, meaning you won't have to download the software on another computer when switching devices. Unfortunately, it's not available on macOS.

8.3
Operating System And Software
Mouse Compatibility
Windows Compatibility Fully
macOS Compatibility Partially

This mouse is fully compatible with Windows, but unfortunately, some buttons won't work on macOS. When setting the mouse in 'right-handed mode' on Mac, you can't use the right side buttons properly. Also, the rest of the buttons are set to their default settings, and can't be changed.

Differences Between Sizes And Variants

While we tested the black version that includes a charging dock, the Razer Viper Ultimate is also available in Quartz Pink, Mercury White, or a Cyberpunk 2077 version, which is a bright yellow with black outlines. You can also choose to buy it without the charging dock, though this option is only available in black.

Compared To Other Mice

The Razer Viper Ultimate is an amazing wireless gaming mouse that comes with a unique charging dock and has an amazingly low click latency, whether you use it wired or wirelessly. It’s among the most comfortable mice we’ve tested and is also one of the few that have a truly ambidextrous design, with two additional buttons on each side. The cable is much better than the one included with previous Razer mice. For other options, see our recommendations for the best mouse, the best wireless gaming mouse, and the best FPS mouse. If you're interested in Razer products, also check out the best Razer mice.

Logitech G PRO X SUPERLIGHT

The Logitech G PRO X SUPERLIGHT and the Razer Viper Ultimate are both amazing wireless gaming mice. If you're a fan of ultra-light mice, the Logitech is worth considering as it's among the lightest wireless mice we've ever tested. It also has a wider CPI range and is fully compatible with Mac, which the Razer isn't. However, the Razer is still very lightweight, has two programmable buttons on each side, and feels more comfortable to use than the Logitech.

Razer DeathAdder V2 Pro

The Razer DeathAdder V2 Pro and the Razer Viper Ultimate are very similar performance-wise. The main difference is that the V2 is a right-handed mouse, while the Ultimate is fully ambidextrous. The Ultimate is lighter; however, the V2 has Bluetooth capability and a multi-device pairing feature.

Logitech G Pro Wireless

The Razer Viper Ultimate is a slightly better mouse than the Logitech G Pro Wireless. It has a few more programmable buttons and its cable, if used wired, is noticeably lighter and less cumbersome. The design of the Razer is also more comfortable. On the other hand, the Logitech is a bit more versatile since it is fully compatible with macOS, which the Razer isn't.

Glorious Model D

The Razer Viper Ultimate is an amazing FPS gaming mouse, while the Glorious Model D is an excellent choice for ultra-light gaming. The Razer has an ambidextrous design with two side buttons on each side and feels more solid and comfortable overall. It has a wider CPI range, a lower lift-off distance, and more programmable inputs. Also, it can be used wired or wirelessly with its USB receiver, making it quite versatile. That said, the Glorious is slightly lighter and features a honeycomb design with RGB strips. It’s well-suited for most hand sizes using any grip type.

Razer Basilisk Ultimate

The Razer Viper Ultimate and the Razer Basilisk Ultimate are very similar gaming mice. They're both the same mouse internally but have a different shape and design to them. The Basilisk Ultimate is a right-handed mouse with a thumb rest and has an additional sniper button on the left side. While the Viper Ultimate isn't recommended with all grip types for larger hands, the Basilisk Ultimate can be used comfortably with all grip types with anyone except those with very small hands.

Glorious Model O Wireless

The Razer Viper Ultimate is slightly better than the Glorious Model O Wireless for all uses. The Razer feels more comfortable, has many more programmable inputs, and has lower click latency. However, the Glorious is marginally lighter and feels better-built. While those with smaller hands will likely find the Razer more comfortable with most grip types, the Glorious is better suited for larger hands.

Razer DeathAdder V2

The Razer Viper Ultimate and the Razer DeathAdder V2 are similarly performing mice for FPS gaming. The Ultimate is wireless and a little bit lighter, while the V2 is wired. The Ultimate's click latency is excellent and almost as low as the V2, even when used wirelessly. The V2 is a better mouse for a palm grip, as it's suitable for any hand size with this grip type, while the Ultimate is better in fingertip grip for those with larger hands.

Razer Viper Mini

The Razer Viper Ultimate is a slightly better gaming mouse than the Razer Viper Mini. The Mini is wired-only, while the Ultimate can be used wired or wirelessly. The Ultimate is slightly more comfortable due to its larger size, has more programmable buttons, and has a wider and more adjustable CPI range. While the Ultimate may be better for people with larger hands, smaller hands will likely get a better grip with the Mini, especially if using a fingertip grip.

Razer Viper 8KHz

The Razer Viper 8KHz and the Razer Viper Ultimate have the same ambidextrous body, but the Viper Ultimate is wireless, while the 8KHz is wired-only. Aside from some slight variances, like the 8KHz's slightly lower click latency and more consistent sensor, the biggest difference is the max polling rate. While the Ultimate caps out at 1000Hz, the 8KHz can be set as high as 8000Hz, which results in more fluid cursor movements, though we don't currently test this.

Logitech G703 LIGHTSPEED Wireless Gaming Mouse with HERO Sensor

The Razer Viper Ultimate is slightly better than the Logitech G703 LIGHTSPEED Wireless Gaming Mouse with HERO Sensor. The Razer is lighter, more comfortable to use, and has more programmable inputs. However, the Logitech has a lower CPI variation and software support for macOS.

Logitech G502 LIGHTSPEED

The Razer Viper Ultimate is a better FPS gaming mouse than the Logitech G502 LIGHTSPEED, but both are very good versatile mice. The Razer is smaller and much lighter, with an ambidextrous design that's well-suited for a fingertip grip, except if you have smaller hands. It has two side buttons on each side of its body, while the Logitech has an unlockable wheel and an additional sniper button on the side. The Logitech is very big and heavy, with an ergonomic design and a thumb rest. It should be better suited for people with larger hands.

Glorious Model O

The Glorious Model O and the Razer Viper Ultimate are both great ultra-light gaming mice. The Model O is a bit lighter thanks to its honeycomb design, but the Razer is also impressively lightweight considering it's a wireless mouse. If you have small hands, you may find the Glorious a little bit too large, while the Razer may be more comfortable. Both have impressively low latency and a wide adjustable CPI range.

Glorious Model D Wireless

The Razer Viper Ultimate and the Glorious Model D Wireless are both excellent wireless gaming mice with comparable performance. The Razer has a slightly higher maximum CPI and two side buttons on either side. You can also set a Hypershift button to enable a secondary layer of commands. On the other hand, the Glorious is marginally lighter and has a more flexible cable. Its cable also has a USB-C connector instead of the older Micro-USB connector on the Razer. Both mice are well-suited for all grip types and most hand sizes, but the Razer has an ambidextrous shape while the Glorious has a right-handed shape.

Logitech G502 HERO

The Razer Viper Ultimate is a noticeably better performing mouse than the wired Logitech G502 HERO. The Razer is better for a fingertip grip and glides very well. Its wireless design and low weight make it a great mouse for FPS games. It's very comfortable to use, but people with larger hands might prefer the Logitech, especially with a palm grip.

Razer Basilisk V3

The Razer Viper Ultimate and the Razer Basilisk V3 are both excellent gaming mice, but the Viper Ultimate is wireless and aimed more towards FPS gaming, while the Basilisk V3 is wired and more versatile for a range of game genres. The Viper Ultimate is much lighter and has two side buttons on each side of the mouse. On the other hand, the Basilisk V3 has a thumb rest, and three additional buttons, though it doesn't have any buttons on the right side. The Basilisk V3 also has lower click latency and a scroll wheel with L/R tilt buttons, and a free-scrolling mode.

Razer Viper

The Razer Viper and Razer Viper Ultimate are nearly identical. The Ultimate is wireless, while the Viper is wired-only. The Viper is a few grams lighter than the Ultimate; other than that, they're pretty much the same. You get a nice RGB charging cradle with the Ultimate, and the USB charging cable is a bit more flexible.

Razer Orochi V2

The Razer Viper Ultimate is a better wireless gaming mouse than the Razer Orochi V2. The Ultimate is lighter, has two side buttons on each side, connects wirelessly with a USB receiver, and has a rechargeable battery. It also has somewhat better click latency and is suitable for nearly all hand sizes using a claw or fingertip grip and smaller hands using a palm grip. Comparatively, the Orochi connects with its USB receiver or via Bluetooth and uses an AA or AAA battery. It's well-suited for fingertip grip for large and medium-sized hands and claw or palm grip with smaller hands.

Logitech G903 LIGHTSPEED

The Razer Viper Ultimate is a better overall gaming mouse than the Logitech G903 LIGHTSPEED. It's lighter, more comfortable to use, and its sensor is amazing. It comes with a nice RGB charging station. On the other hand, the Logitech is a bit more versatile, thanks to its wheel's unlock button and the fact that it's fully compatible with macOS.

Razer Mamba Wireless

The Razer Viper Ultimate performs slightly better than the Razer Mamba Wireless. The Ultimate is smaller and lighter, and it has an ambidextrous design with two side buttons on each side. It's great for a fingertip grip, though small and medium hands should also find it comfortable with a palm or a claw grip. It has a wider CPI range, lower lift-off distance, and a lower click latency. On the other hand, the Mamba has more of an ergonomic shape, with a slight slant and a higher back. It’s well-suited for a palm and a claw grip unless you have smaller hands.

SteelSeries Aerox 3 Wireless

Although the SteelSeries Aerox 3 Wireless and the Razer Viper Ultimate both have an ambidextrous design, only the Razer has thumb buttons on both sides. The Razer is better overall due to its superior build, higher-quality feet, and lower click latency. It also has more buttons and more programmable inputs due to its HyperShift feature. However, the SteelSeries' honeycomb body is lighter, it has multi-device pairing, and its Engine 4 software is compatible with macOS.

Razer DeathAdder Elite

The Razer Viper Ultimate is a better gaming mouse than the Razer DeathAdder Elite. Its wireless design gets rid of the clutter of a cable, and it's also noticeably lighter. Its click latency is lower and, when used wired, its cable is lighter than the Elite's. On the other hand, the Elite has a right-slanted design and is slightly better for people with larger hands.

ASUS ROG Gladius III Wireless

The Razer Viper Ultimate and the ASUS ROG Gladius III Wireless are comparable wireless gaming mice. The Razer is lighter, and it has smoother-gliding mouse feet and much lower click latency. Also, it has more programmable inputs thanks to its HyperShift feature. On the other hand, you can use the ASUS over Bluetooth, unlike the Razer that only has a USB receiver, and it feels better built since its side buttons don't squeak.

Logitech G903 HERO

The Razer Viper Ultimate is better for most uses than the Logitech G903 HERO. The Razer has slightly lower click latency, is more comfortable, and has much better feet, so it glides better. However, the Logitech has a higher max CPI, less CPI variation, and the G HUB software is available on macOS, while the Razer Synapse 3 software isn't.

SteelSeries Prime Wireless

The Razer Viper Ultimate is a better gaming mouse than the SteelSeries Prime Wireless. The Razer is lighter and has an ambidextrous shape. It also has two additional side buttons on the right side. Performance-wise, it has a much lower click latency, a lower lift-off distance, a higher maximum CPI, and you can adjust the set CPI more precisely. On the other hand, the SteelSeries feels sturdier and has a right-handed shape. It also has customization software compatible with Windows and macOS, while the Razer only has software compatible with Windows.

ASUS ROG Keris Wireless

The Razer Viper Ultimate is a better wireless gaming mouse than the ASUS ROG Keris Wireless. It's lighter and has mouse feet that glide more smoothly. It also has a wider CPI range, a more precisely adjustable CPI, a lower lift-off distance, somewhat better click latency, and two extra side buttons on the right side. Comparatively, the ASUS feels sturdier and has Bluetooth support, which the Razer lacks. It also has hot-swappable left and right-click switches.

Razer DeathAdder V2 X HyperSpeed

The Razer Viper Ultimate and the Razer DeathAdder V2 X Hyperspeed are wireless gaming mice. The Viper Ultimate has an ambidextrous, low-profile design with two buttons on each side, making it suitable for left- or right-handed users. It has a rechargeable battery, and you can also use it with its paracord-like charging cable if you prefer. On the other hand, the DeathAdder V2 X has a more ergonomic, right-handed shape, and it supports Bluetooth. It's powered by an AA or an AAA disposable battery, and it has two CPI switching buttons on the edge of its left-click button.

Razer Mamba Elite

The Razer Mamba Elite is a wired gaming mouse, while the Razer Viper Ultimate is wireless. Both mice are lightweight, though the Ultimate is lighter. The Ultimate is for people with small or medium hands, and those with very large hands will likely only find the Ultimate comfortable in fingertip grip. The Elite can be used in all grip types by all hand sizes, except claw and fingertip grip with small hands. Both mice have low latency, a very wide CPI range, and two additional side buttons.

Razer DeathAdder Essential

The Razer Viper Ultimate and the Razer DeathAdder Essential are gaming mice with different designs. The Viper Ultimate is a wireless mouse with an ambidextrous shape. It has a more flexible cable, smoother-gliding mouse feet, and three more programmable buttons. Also, it has a much wider CPI range, a more precisely adjustable CPI, a lower lift-off distance, and a much lower latency. On the other hand, the DeathAdder Essential is a wired right-handed mouse with a high back. It's better suited for large hands using a palm or claw grip, while the Viper Ultimate is better for smaller hands using a palm or claw grip.

BenQ ZOWIE S2

The BenQ ZOWIE S2 is a very different mouse than the Razer Viper Ultimate. The BenQ is a wired mouse, and it has a higher back hump, which might be better for claw grip users. On the other hand, the Razer is wireless, slightly lighter, and feels more high-end. If you were to use the Razer wired, its cable is better than the BenQ's. It also has RGB lighting that you can customize inside its software.

Corsair HARPOON RGB Wireless

The Razer Viper Ultimate is a better gaming mouse than the Corsair HARPOON RGB Wireless. The Razer is lighter and has a much more comfortable and durable feeling. Both mice are only suitable for palm grip with small or medium hands. While the Corsair can be used by all hand sizes with a claw grip, people with extra-large hands will only get a comfortable grip of the Razer when using a fingertip grip. The Razer has a much wider and more adjustable CPI range, though the sensor on the Corsair is more consistent. The Razer has more programmable buttons, and its L/R click buttons are optical instead of mechanical.

ASUS ROG Gladius II Wireless

The Razer Viper Ultimate is a better wireless gaming mouse than the ASUS ROG Gladius II Wireless. It's much lighter and has mouse feet that glide more smoothly. It has an ambidextrous shape with two additional side buttons on the right. Performance-wise, it has a wider CPI range, a more precisely adjustable CPI, a lower lift-off distance, and a much lower click latency. Comparatively, the ASUS has a right-handed shape and Bluetooth support, which the Razer lacks. It also has hot-swappable left and right-click switches.

MSI CLUTCH GM41 LIGHTWEIGHT WIRELESS

The Razer Viper Ultimate is a better wireless gaming mouse than the MSI CLUTCH GM41 LIGHTWEIGHT WIRELESS. The Razer feels sturdier and has a more flexible charging cable. It also has mouse feet that glide more smoothly and two additional side buttons on the right side, making it a good choice for left-handed users. Performance-wise, it has a more precisely adjustable CPI and a lower click latency. Both mice weigh the same and are suitable for all grip types. However, the Razer is slightly more accomodating for smaller hands, while the MSI is more accommodating for larger hands.

SteelSeries Rival 3 Wireless

The Razer Viper Ultimate is a better gaming mouse than the SteelSeries Rival 3 Wireless. The Razer is more comfortable, has more precise CPI adjustment steps, and it has side buttons on both sides of the mouse, unlike the SteelSeries that only has them on the left side. However, the SteelSeries has Bluetooth, a slightly more consistent sensor, and is fully compatible with macOS, unlike the Razer.

ASUS ROG Pugio II

The Razer Viper Ultimate is a better wireless gaming mouse than the ASUS ROG Pugio II. It's significantly lighter and has much lower click latency. It also has mouse feet that glide more smoothly, a higher maximum CPI, and a more precisely adjustable CPI. Its shape is best-suited for a fingertip grip for larger hands or a claw or palm grip for smaller hands. Comparatively, the ASUS feels sturdier and has Bluetooth support. It also has hot-swappable switches for the left and right-click buttons. Its shape is well-suited for all grip types and nearly all hand sizes.

Logitech G403 Wireless Gaming Mouse

The Razer Viper Ultimate is a better mouse than the Logitech G403 Wireless Gaming Mouse. It's noticeably lighter and smaller than the Logitech, which is great for fast movements, it's low profile, and has an ambidextrous design. It's great for FPS players that use a fingertip grip, and it comes with a nice and sleek-looking charging dock, which also has RGB lighting. On the other hand, if you prefer a palm grip, the Logitech is a better option. Its software is also available on macOS, which isn't the case with Razer Synapse.

Razer Pro Click

The Razer Pro Click and the Razer Viper Ultimate perform the same overall; however, they're designed for different uses. The Pro Click is meant for productivity with multi-device pairing capability, and its scroll wheel has L/R tilt input. The Ultimate is much lighter and comes with a nice charging cradle. The Pro Click is designed for right-handed use, while the Ultimate is ambidextrous.

ROCCAT Kone Pure Ultra

The Razer Viper Ultimate is a better gaming mouse than the ROCCAT Kone Pure Ultra. The Razer has mouse feet that glide more smoothly, two additional side buttons on the right side, a higher maximum CPI, and much lower click latency. It has an ambidextrous shape and connects either wired with its charging cable or wirelessly with a USB receiver. On the other hand, the ROCCAT has a pair of CPI buttons behind the scroll wheel, which the Razer lacks. Also, it has a right-handed shape with a thumb rest.

DELUX M800 Wireless

The Razer Viper Ultimate and the DELUX M800 Wireless are wireless gaming mice with nearly identical ambidextrous designs, but the Razer performs better. It has two buttons on each side, and you can set a HyperShift button to give you a second layer of controls. The Razer has smoother-gliding feet, a wider CPI range, a more precisely adjustable CPI, and a lower lift-off distance. Also, its sensor is much more consistent, and its click latency is significantly lower. On the other hand, the DELUX has a CPI profile switching button below its scroll wheel, which the Razer lacks. Also, it's marginally lighter.

ASUS ROG Strix Impact II Wireless

The Razer Viper Ultimate is a better wireless gaming mouse than the ASUS ROG Strix Impact II Wireless. The Razer is significantly lighter, has two additional side buttons, a more flexible cable, and smoother gliding mouse feet. It also has a higher maximum CPI and a more precisely adjustable CPI. It's best-suited for a fingertip grip for all but small hands. Comparatively, the ASUS is best-suited for a claw grip for all hand sizes.

Corsair M65 PRO RGB

The Razer Viper Ultimate is an excellent wireless gaming mouse, while the Corsair M65 PRO RGB is a good, wired gaming mouse. The Razer is significantly lighter, has a more flexible cable, smoother gliding mouse feet, and you can use it wired or wirelessly with its USB receiver. It also has a higher maximum CPI, one additional side button, and significantly lower click latency. Unfortunately, its software is only compatible with Windows. On the other hand, the Corsair is a wired-only mouse, but it feels sturdier, has a more precisely adjustable CPI, and its software is compatible with both Windows and macOS.

Corsair KATAR PRO Wireless

The Razer Viper Ultimate is a slightly better gaming mouse than the Corsair KATAR PRO Wireless. The Razer feels better built, has a wider and more adjustable CPI range, and more programmable buttons. However, the Corsair has Bluetooth support, uses one AA battery, and its software is compatible with macOS, although it's less user-friendly.

BenQ ZOWIE EC1-C

The Razer Viper Ultimate is an exceptional wireless gaming mouse, while the BenQ ZOWIE EC1-C is a great wired gaming mouse. The Razer is smaller,  somewhat lighter, and has mouse feet that glide more smoothly. It also has two additional side buttons on the right side, making it a great choice for left-handed users. Performance-wise, it has lower click latency, a massively wider CPI range, and a CPI you can adjust precisely by increments of 50, while you can only choose between four CPI presets on the BenQ. The Razer also has customization software, which the BenQ lacks entirely.

BenQ ZOWIE FK1-B

The Razer Viper Ultimate is a better gaming mouse than the BenQ ZOWIE FK1-B. The Razer is substantially lighter, despite being able to connect wirelessly with its USB receiver. It also has two additional side buttons, RGB lighting, better mouse feet, a wider CPI range, and a more finely adjustable CPI. The companion software is only compatible with Windows, but it has onboard memory that you can use to carry settings to computers without the software. It's well-suited to all grip types, depending on hand size. On the other hand, the BenQ doesn't have companion software for customization and only has two side buttons. That said, it's very well-suited to all grip types and nearly all hand sizes, but those with smaller hands may not be able to reach all buttons using a claw or fingertip grip.

Vancer BT.L Gretxa

The Razer Viper Ultimate is a better wireless gaming mouse than the Vancer BT.L Gretxa. The Razer has better quality feet, a somewhat higher maximum CPI, and much lower click latency. You can assign a HyperShift button that enables a secondary layer of controls, and it has two additional side buttons on the right side, making it a better choice for left-handed users. On the other hand, the Vancer is marginally lighter and feels sturdier. It also has a marginally lower minimum CPI, though this is unlikely to be useful for most users. Both mice are suitable for all grip types and most hand sizes, but the Vancer is slightly more accommodating to large-size hands using a palm grip.

ASUS ROG Spatha X

The Razer Viper Ultimate is an excellent wireless gaming mouse better suited for FPS gaming, while the ASUS ROG Spatha X is an impressive wireless gaming mouse suitable for many genres. The Razer is substantially lighter and has better quality feet that glide more smoothly. It also has a slightly higher maximum CPI and a lower lift-off distance. It has two side buttons on either side of the mouse. On the other hand, the ASUS has a thumb and pinky rest. It also has four additional buttons, but its six side buttons are only on the left side.

SteelSeries Sensei Ten

The Razer Viper Ultimate is a better gaming mouse than the SteelSeries Sensei Ten. Both mice come with an ambidextrous design and two side buttons on each side, but the Razer has a more solid design and doesn't feel slippery. The Razer also comes with a unique charging station that also acts as a receiver range extender for better performance.

Dell Alienware AW610M

The Razer Viper Ultimate is a much better wireless gaming mouse than the Dell Alienware AW610M. The Razer is lighter, has a much better cable, a much lower click latency, better sensor performance, and more programmable buttons. While the Alienware is suitable for all hand sizes with a palm grip and larger hands for claw grip, the Razer is only usable with a fingertip grip if you have extra-large hands.

BenQ ZOWIE FK1+-B

The Razer Viper Ultimate is a better gaming mouse than the BenQ ZOWIE FK1+-B. The Razer connects wired or wirelessly with a USB receiver. It has lower latency, two additional side buttons, RGB lighting, a lower lift-off distance, a CPI with a much wider range that's adjustable in increments of 50, and software for customization. It's also well-suited to all grip types for most hand sizes, but those with larger hands may find their fingers drape over the front using a palm grip. On the other hand, the BenQ is a wired mouse with no wireless connectivity options. It's also significantly heavier and is well-suited for larger hands and all grip types.

SteelSeries Sensei RAW

The Razer Viper Ultimate is a significantly better gaming mouse than the SteelSeries Sensei RAW. It connects wired or wirelessly with its USB receiver and is much lighter. It also has a wider CPI range, a more precisely adjustable CPI, and better click latency. Unfortunately, its software is only compatible with Windows. On the other hand, the SteelSeries has software compatible with Windows and macOS. The Razer is well-suited for a fingertip grip for larger hands and a claw or palm grip for smaller hands, while the SteelSeries is best suited for a claw grip for all hand sizes.

DREVO Falcon Wireless RGB

The Razer Viper Ultimate is a better gaming mouse than the DREVO Falcon Wireless RGB. The Razer is much lighter, and it has a much lower latency. Also, its CPI range is wider, you can adjust the CPI in more precise increments, and its lift-off distance is much lower. It has two additional side buttons on the right side, and you can assign a HyperShift button which allows you to enable a second layer of controls for as long as you hold it. On the other hand, the DREVO accommodates larger hand sizes using a palm or claw grip.

Corsair HARPOON RGB PRO

The Razer Viper Ultimate is a better gaming mouse than the Corsair HARPOON RGB PRO. It connects wirelessly with a USB receiver and is lighter, has a more flexible cable, better mouse feet, and two additional side buttons. It also has a broader CPI range, a more precisely adjustable CPI, a lower lift-off distance, and much lower click latency. However, its software is only compatible with Windows, while the Corsair has software compatible with Windows and macOS. Both mice are well-suited for claw and fingertip grips for nearly all hand sizes and a palm grip for smaller hands.

VicTsing Wireless Gaming Mouse

The Razer Viper Ultimate is a much better gaming mouse than the VicTsing Wireless Gaming Mouse. The Razer is lighter, better for more hand sizes with a claw grip, has a significantly lower click latency, and a much better-performing sensor. The Razer has multiple buttons that can all be programmed within Razer's software, while the VicTsing doesn't have a companion software to make any customization.

Vaxee ZYGEN NP-01

The Razer Viper Ultimate is an excellent wireless gaming mouse, while the Vaxee ZYGEN NP-01 is a very good wired gaming mouse. The Razer is a bit lighter, and you can use it wired via its cable or wirelessly via its USB receiver. It has much lower click latency, and it has customization software to reprogram its buttons and adjust the CPI to your liking. Comparatively, the Vaxee has no software, and you can only cycle between four preset CPI settings via a button on the underside of the mouse. However, it feels sturdier than the Razer.

HP OMEN Photon

The Razer Viper Ultimate is a better wireless gaming mouse than the HP OMEN Photon. The Razer is much lighter and has mouse feet that glide much more smoothly. It also has a more flexible charging cable, a higher maximum CPI, a more precisely adjustable CPI, and a much lower click latency. You can also set a HyperShift button to enable a secondary layer of commands. On the other hand, the HP has a selection of modular parts that adjust the ergonomics and functionality of the mouse. It also has a mouse wheel with L/R tilt buttons, which the Razer lacks. Unfortunately, you need to log in to an OMEN account to program more than one profile using the software, which the Razer doesn't require.

BenQ ZOWIE ZA11-B

The Razer Viper Ultimate and the BenQ ZOWIE ZA12-B are both ambidextrous-shaped gaming mice, but the Razer is better overall. It has a lower minimum lift-off distance, an adjustable CPI range, a much lower click latency, and many programmable buttons. Also, the Razer is much lighter, making it a better choice for fans of ultra-light mice. However, while the Razer's small size makes it more suitable for people with small hands using a palm or claw grip, it means that people with larger hands may feel the mouse is too short. If you have large or extra-large hands, you may find the BenQ's larger size much more comfortable to use.

Gamesense Meta

The Razer Viper Ultimate is an amazing wireless gaming mouse, while the Gamesense Meta is an excellent wired gaming mouse. You can use the Razer either wirelessly via its USB receiver or wired with its cable. It has smoother-gliding mouse feet, more programmable buttons thanks to its Hypershift feature, and slightly lower click latency. Also, it has a wider CPI range, and you can adjust its CPI more precisely. On the other hand, the Gamesense is lighter.

Mad Catz R.A.T. 8+

The Razer Viper Ultimate is much better than the Mad Catz R.A.T. 8+. Despite being a wireless mouse, the Razer has much lower click latency. It also has an ambidextrous design, and it's lighter. However, the Mad Catz has less CPI variation, and it has an extra programmable button.

DELUX M627

The Razer Viper Ultimate and the DELUX M627 are both wireless gaming mice, but the Razer performs much better. The Razer has a much lighter weight and better quality mouse feet, and you can set a HyperShift button to give you a second layer of custom commands. Also, it has a more precisely adjustable CPI, a lower lift-off distance, and much lower click latency. On the other hand, the DELUX has a modular design and comes with magnetic thumb rests to make the mouse left- or right-handed.

HK Gaming Mira-S

The Razer Viper Ultimate is a better, more versatile gaming mouse than the HK Gaming Mira-S. The Razer connects either wirelessly with its USB receiver or with its charging cable. It has two extra side buttons on the right side, making it a good choice for left-handed gamers. It also has a higher maximum CPI, a more precisely adjustable CPI, a lower lift-off distance, and significantly lower click latency. Comparatively, the HK Gaming is a wired-only mouse. It's somewhat lighter and has a slightly more consistent sensor. Both mice are suitable for all grip types and nearly all hand sizes. However, the HK Gaming is more accommodating for smaller hands using a fingertip grip.

Mad Catz B.A.T. 6+

The Razer Viper Ultimate and the Mad Catz B.A.T. 6+ are true ambidextrous gaming mice with side buttons on either side. However, the Mad Catz is a wired-only mouse, while the Razer is a wireless mouse with better overall performance. The Razer is also somewhat lighter and feels sturdier. It also has mouse feet that glide more smoothly. Performance-wise, it has a more consistent sensor, a lower minimum lift-off distance, a higher maximum CPI, and marginally lower click latency. You can also set a HyperShift button to enable a secondary layer of commands. Comparatively, the Mad Catz has modular pieces, including a thumb and pinky rest and a higher maximum polling rate. It's also more accommodating to more hand sizes overall.

J-Tech Digital V628X

The Razer Viper Ultimate is a much better-performing mouse than the J-Tech Digital V628X. The Razer performs better in every regard, though the J-Tech has a unique and customizable vertical design that may be more comfortable to some people after using it for extended periods.

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