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Logitech G MX518 Legendary Mouse Review

Tested using Methodology v1.2
Reviewed Dec 01, 2020 at 10:53 am
Latest change: Writing modified Jan 06, 2023 at 09:52 am
Logitech G MX518 Legendary Picture
6.9
Office/Multimedia
8.1
Video Games (FPS)
7.9
Video Games (MMO)
7.3
Ultra-Light Gaming
5.1
Travel

The Logitech G MX518 Legendary mouse is a revived version of the original Logitech G MX518, which was released in 2005. The 2019 version is good for gaming thanks to its wide and adjustable CPI range, as well as its remarkably low click latency. All of its buttons can be remapped in the Logitech G HUB software, and you can even set a G-Shift button to give you a second layer of controls. It's comfortable to use, but since it's quite long, people with small hands may not be able to use it comfortably with any grip type. Sadly, most of its parts feel cheaply made, and some of its buttons have different pre-travel distances than the rest, which feels very weird. Overall, it's a good gaming mouse for its price.

Our Verdict

6.9 Office/Multimedia

The Logitech G MX518 is okay for office use. The scroll wheel can't be unlocked for infinite scrolling, but it's comfortable to use. However, people with small hands may struggle to reach the buttons with any grip type. It's decently built, although some parts of it feel cheap. However, it has many programmable inputs and it's fully compatible with Windows and macOS.

Pros
  • All buttons are programmable.
  • Fully compatible with Windows and macOS.
Cons
  • Large size may not be ideal for small hands.
  • No infinite scroll.
8.1 Video Games (FPS)

The Logitech G MX518 is good for FPS gaming. It has a remarkably low click latency, a wide CPI range with very little variation, and a high polling rate. Its feet glide well on a mousepad and directly on a desk, but sadly the cable isn't very flexible and it retains kinks. Also, it's fairly heavy for its size, and some parts of it feel cheaply made.

Pros
  • Remarkably low click latency.
  • All buttons are programmable.
Cons
  • Large size may not be ideal for small hands.
7.9 Video Games (MMO)

The Logitech G MX518 is good for MMO gaming. It's comfortable to use, although people with small hands may not be able to use it comfortably with any grip type. It has a remarkably low click latency and an adjustable CPI range. You can program all of the buttons, and you can even set a G-Shift button to give you a second layer of customization. Unfortunately, it only has two side buttons, which isn't as much as dedicated MMO mice have.

Pros
  • Remarkably low click latency.
  • All buttons are programmable.
  • Fully compatible with Windows and macOS.
Cons
  • Only two side buttons.
  • Large size may not be ideal for small hands.
7.3 Ultra-Light Gaming

The Logitech G MX518 is a decent ultra-light gaming mouse. It's fairly heavy for its size and its rubber cable retains kinks from the packaging. It's also too long for small hands to reach all the buttons comfortably. On the upside, it has a remarkably low click latency, and its feet glide well on both a mousepad and directly on a desk.

Pros
  • Remarkably low click latency.
  • All buttons are programmable.
Cons
  • Heavy for its size.
  • Large size may not be ideal for small hands.
5.1 Travel

The Logitech G MX518 isn't designed for travel. It's a wired gaming mouse that is best suited for an at-home gaming setup. Its non-removable wire and heaviness don't make it very portable.

Pros
  • Fully compatible with Windows and macOS.
Cons
  • Heavy for its size.
  • Large size may not be ideal for small hands.
  • 6.9 Office/Multimedia
  • 8.1 Video Games (FPS)
  • 7.9 Video Games (MMO)
  • 7.3 Ultra-Light Gaming
  • 5.1 Travel
  1. Updated Jan 06, 2023: We've corrected the text in the Click Latency section and several other places in this review to provide context for our results following the change in our click latency test methodology with Test Bench 1.1.
  2. Updated Dec 09, 2022: We've converted this review to Test Bench 1.2. This update simplifies our Weight test and expands on our CPI test from Test Bench 1.1, resulting in changes to test results in both sections. For more details, you can see our complete changelog here.
  3. Updated Nov 17, 2022: We've converted this review to Test Bench 1.1. This update revamps our Click Latency test and results in changes to test results. For more details, you can see our full changelog here.
  4. Updated Sep 06, 2022: We've added a small disclaimer to the Compatible Software Option section which highlights some of the most commonly reported issues users online have encountered with Logitech's G HUB companion software.
  5. Updated Dec 01, 2020: Review published.
  6. Updated Nov 17, 2020: Early access published.
  7. Updated Nov 13, 2020: Our testers have started testing this product.
  8. Updated Nov 09, 2020: The product has arrived in our lab, and our testers will start evaluating it soon.
  9. Updated Nov 05, 2020: We've purchased the product and are waiting for it to arrive in our lab.
  10. Updated Nov 01, 2020: The product has won our suggestion poll, so we'll buy and test it soon.

Differences Between Sizes And Variants

The Logitech MX518 gaming mouse has no variants. You can see the label of our unit here.

Compared To Other Mice

The Logitech MX518 Legendary is a good and affordable gaming mouse, but it doesn't rival other options in its price range. Most parts of it feel cheaply made, the scroll wheel has uneven steps, and the buttons have different pre-travel distances, which is off-putting. For other options, see our recommendations for the best mice and the best wireless mice. If you're interested in Logitech products, also check out the best Logitech mice.

Logitech G502 HERO

The Logitech G502 HERO is better than the Logitech G MX518 Legendary. The G502 HERO feels better built and more comfortable for most people. Also, it has a lower lift-off distance and many more programmable buttons. However, the MX518 Legendary's feet glide better, and its sensor is slightly more consistent than the G502 HERO.

Logitech G5

The Logitech G MX518 Legendary and the Logitech G5 have the same shape and size. The MX518 Legendary is a refresh of the original MX518 with an improved sensor, so unsurprisingly, its CPI range is much wider than the G5. It also has a lower lift-off distance, a more consistent sensor, onboard memory, and an extra side button.

Razer Viper Mini

The Razer Viper Mini is better than the Logitech G MX518 Legendary. The Razer feels better built, and its feet glide better. However, the Logitech has a better sensor and a wider CPI range that can adjust more precisely, and since it's a larger mouse, it should be more comfortable than the Razer for larger-sized hands.

Razer DeathAdder V2

The Razer DeathAdder V2 is better than the Logitech G MX518 Legendary. The Razer feels better built, and its feet glide better. Also, it has a marginally lower click latency, more programmable inputs, and a lower lift-off distance. However, the Logitech has a more consistent sensor, and it's fully compatible with macOS.

Logitech G300s

The Logitech G300s is better than the Logitech G MX518. The G300s feels better built, and it's smaller, so people with smaller hands should be comfortable using it with a palm or claw grip. However, the MX518 has a much wider and more precisely adjustable CPI range, and its lift-off distance is lower.

Logitech G203 Prodigy

The Logitech G203 Prodigy is better than the Logitech G MX518. The Prodigy feels better built, is better suited for small hands, and has a lower lift-off distance. On the other hand, the MX518 has more programmable buttons, and its curved shape feels more comfortable.

Corsair M55 RGB Pro

The Logitech G MX518 Legendary is better than the Corsair M55 RGB Pro. The Logitech has more programmable buttons thanks to its G-Shift button, a wider and more precisely adjustable CPI range, and its sensor is much more consistent. However, the Corsair feels better built and has RGB lighting.

Nixeus REVEL Fit

The Logitech G MX518 Legendary and the Nixeus Revel Fit share the same unique right-handed shape. The Logitech has a wider CPI range, a set CPI that you can adjust more precisely, and a more consistent sensor. It also has more programmable buttons, including two on the front and back of the scroll wheel, and you can assign a G-Shift button for a second layer of programming.  On the other hand, the Nixeus has RGB lighting, which the Logitech lacks.

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Test Results

perceptual testing image
Design
Design
Style
Type
Standard
Lighting Color No Lighting

The Logitech G MX518 (2019) is a revival of the original MX518 (2005). The revived version has the same curvy shape, with the same Logitech G logo at the back, but it has a different design on its top. The revived version has a smoother look with a glossy gradient that goes from light grey to black. The Legendary has two side buttons, two buttons above and below the scroll wheel to increase and decrease the CPI, and a default CPI button. Sadly, there's no RGB lighting zone. If you're interested in another modern version of a classic, retro gaming mouse, check out the Microsoft Pro IntelliMouse.

Design
Shape
Length 5.2" (131 mm)
Height 1.7" (44 mm)
Width 2.7" (70 mm)
Grip Width
63 mm
5.4
Design
Portability
Volume
24.23 in³ (397 cm³)
Cable/Receiver Storing
No

This mouse isn't great for travel due to its fairly large size and wired-only design. However, this shouldn't be an issue for people looking for a gaming mouse for their desk setup.

7.0
Design
Build Quality

The build quality is decent. The sides are made of slightly textured plastic which helps provide a better grip, but the top is a glossy, slippery plastic that feels a bit cheap. There's a small amount of flex when you squeeze the back, but it shouldn't be noticeable while using it. The buttons feel poorly made and aren't satisfying to click. There's a weird uneven pre-travel distance, where some buttons have longer distances than others. Also, the top buttons have a noticeable wobble.

6.2
Design
Weight
Lowest Weight
96.5 g
Default Weight
96.5 g
Weight Distribution
Centered
Extra Weights
No

It's somewhat heavy for its size, and unfortunately there's no way to optimize the weight.

8.0
Design
Comfort Of Use
Right-handed
Yes
Left-handed
No
Ambidextrous
No
Coating
Glossy
Finger Rest
Thumb

This mouse feels comfortable to use, although people with small hands may not feel comfortable using it with any grip type. Due to its slight curve and left-side thumb rest, it's designed for right hands, and its sides have a textured detail on the plastic that helps with grip. However, the CPI buttons around the scroll wheel are awfully placed, and it isn't comfortable to reach them. The button in front of the scroll wheel feels much too forward, and the button behind the wheel feels too pushed back.

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

When used with a palm grip, people with small hands might struggle to reach the front side button as well as the button in front of the scroll wheel. People with extra-large hands might find struggle with the right and left clicks since their fingers may hang off the front.

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

When used with a claw grip, the front side button and the button in front of the scroll wheel may be difficult to reach for people with small hands.

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

People with small hands and medium hands may struggle to reach the front side button and the button in front of the scroll wheel when using it with a fingertip grip.

0
Design
Wireless Versatility
Bluetooth
No
Receiver
No
Battery Type
No Batteries
Use When Charging
No
On/Off Activation
None
Receiver Extender
No
Battery Indicator No

This mouse is wired and can't be used wirelessly.

7.0
Design
Cable
Connectivity Wired
Cable Length 6.7 ft (2.0 m)
Cable Type
Rubber
Permanent Kink
Yes
Port Type: Mouse End
No Port
Port Type: PC End
USB

This mouse has a decent cable. It's made out of rubber and retains kinks from the packaging.

7.5
Design
Mouse Feet
Gliding Experience
Good
Material
PTFE
Extra Included
No

The Logitech G MX518's feet are good. They glide well on both a mousepad and directly on a desk, although there's a slight scratchiness due to the sharpness of two straight edges. Although it doesn't come with replacement feet, third-party versions are available, but we haven't tested them.

Design
In The Box

  • Logitech G MX518 gaming mouse
  • G sticker
  • Manual

Control
7.9
Control
Buttons
Buttons Activation
Mechanical
Total Number Of Buttons
8
Number Of Side Buttons
2
Number Of Programmable Inputs
15
Profile Switching Button
Yes
CPI (DPI) Switching Button
Yes
Gesture Support
No

The Logitech MX518 mouse has a great number of buttons. You can program every button through the Logitech G HUB software, including the middle click on the scroll wheel, but you can't program the up and down scroll. You can also assign a G-Shift button which allows for a second layer of programming.

9.1
Control
Click Latency
Expected Connection
3.5 ms
Wired
3.5 ms
Receiver
N/A
Bluetooth
N/A

This mouse has outstanding click latency and provides a snappy and responsive-feeling experience for gaming in any genre.

9.2
Control
CPI
SRAV @ 1600 CPI
-0.28%
SRAV @ 800 CPI
0.21%
SRAV @ 400 CPI
0.33%
SRAV @ Fixed CPI
N/A
Precision Error Between Speeds
0.26%
Precision Error Between CPI
0.29%
Worst Tracking Error
-2.25%
Minimum CPI
100 CPI
Maximum CPI
16,000 CPI
CPI Adjustment Steps
50 CPI
Control
Sensor Specifications
Sensor Technology
Optical (LED)
Sensor Model
HERO 16K
Works On Glass
No
Minimum Lift Off Distance
2.4 mm
Maximum Polling Rate
1000 Hz

The Logitech MX518 Hero has a wide CPI range that can be adjusted in increments of 50. The sensor remains fairly consistent whether you move the mouse fast or slow. You can choose between four polling rates: 125Hz, 250Hz, 500Hz, and 1000Hz.

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 mouse wheel has a smooth rubber feel that isn't grippy at all. The steps aren't very pronounced and you can hardly notice it when scrolling up. Although you can feel the steps while scrolling down, the step definition feels slightly uneven. Also, there seems to be a slight lag when scrolling.

Control
Noise
Click Noise
Loud

The clicks on the Logitech G MX518 are loud, but they shouldn't bother you unless you're in a very quiet environment.

Operating System And Software
9.8
Operating System And Software
Compatible Software Option
Software Name Logitech G Hub
Software Windows Compatibility
Yes
Software macOS Compatibility
Yes
Account Needed
No
On-Board Memory
Yes
CPI (DPI) Adjustment
Yes
Polling Rate Adjustment
Yes
Profile Configuration
Yes
RGB On/Off
No

The Logitech G MX518 has excellent compatibility with the Logitech G HUB. It's very user-friendly, so you can remap the buttons and change the sensor settings very easily. There weren't any software issues encountered during testing, but users online have reported various problems trying to use Logitech G HUB, including but not limited to startup issues, freezing, and connection issues with some devices. If you'd like to share your experience using Logitech G HUB with this mouse, feel free to leave a comment in the discussions section.

10
Operating System And Software
Mouse Compatibility
Windows Compatibility Fully
macOS Compatibility Fully

Since the software is compatible with both Windows and macOS, you can customize your mouse on either operating system and everything should work properly.