Logitech G603 LIGHTSPEED Mouse Review

Tested using Methodology v1.0
Reviewed Sep 18, 2020 at 08:26 am
Logitech G603 LIGHTSPEED Picture
8.4
Office/Multimedia
6.9
Video Games (FPS)
7.8
Video Games (MMO)
4.7
Ultra-Light Gaming
8.4
Travel
Connectivity Wireless
Type
Standard

The Logitech G603 LIGHTSPEED is a great wireless gaming mouse in Logitech's G Series lineup. It offers what most gamers are looking for, such as low click latency, a high polling rate, a wide CPI range, and minimal CPI error. You can also adjust the CPI in increments of 50 and it has a really low lift-off distance. Sadly, it's on the heavy side for FPS or ultra-light gaming, and for MMO gamers, it only has two side buttons. It's a well-built and very comfortable mouse with a right-handed slant. It's ideal for any hand size with a palm grip, and it works for larger hands with a fingertip or claw grip.

Our Verdict

8.4 Office/Multimedia

The Logitech G603 is impressive for office use. It's a very comfortable wireless mouse that can connect to your computer either through its proprietary receiver or through Bluetooth. It's very well made and there are a few buttons you can reprogram. Sadly, its scroll wheel doesn't offer many extra features like left/right buttons or horizontal scrolling.

Pros
  • Very comfortable to use.
  • Excellent build quality.
  • Good selection of programmable buttons.
Cons
  • Basic mouse wheel with no wheel tilt.
6.9 Video Games (FPS)

Okay for FPS games. The Logitech G603 is heavy, so it's a bit more difficult to move around for quick actions. Still, it has low click latency, a high polling rate, a wide CPI range, and minimal CPI error. It's very comfortable and it feels well-built too. You can also reprogram every button through the G HUB software.

Pros
  • Very comfortable to use.
  • Excellent build quality.
  • Low click latency.
Cons
  • On the heavy side.
  • No weight optimization.
7.8 Video Games (MMO)

The Logitech G603 is great for MMO gaming. You can reprogram every button on the mouse, but it only has two side buttons. It has low click latency, a wide CPI range, and minimum CPI error. It's very comfortable and it has an excellent build quality.

Pros
  • Very comfortable to use.
  • Excellent build quality.
  • Good selection of programmable buttons.
  • Low click latency.
Cons
  • Only two side buttons.
  • Basic mouse wheel with no wheel tilt.
4.7 Ultra-Light Gaming

The Logitech G603 is a heavy mouse that isn't designed for ultra-light gaming and it's a heavy mouse. You can't optimize its weight either.

Pros
  • Very comfortable to use.
  • Low click latency.
Cons
  • On the heavy side.
  • No weight optimization.
8.4 Travel

The Logitech G603 is impressive for travel. It's a wireless mouse that's easy to carry around and there's a compartment to store the USB receiver. It feels very well-built, so you shouldn't have to worry about breaking it by tossing it into a bag. It's a very comfortable mouse and it's fully compatible with both Windows and macOS.

Pros
  • Very comfortable to use.
  • Excellent build quality.
  • Fully compatible with both Windows and macOS.
Cons
  • On the heavy side.
  • 8.4 Office/Multimedia
  • 6.9 Video Games (FPS)
  • 7.8 Video Games (MMO)
  • 4.7 Ultra-Light Gaming
  • 8.4 Travel
  1. Update 10/23/2020: Converted to Test Bench 1.0.

Check Price

Black/Gray G603 LIGHTSPEED
SEE PRICE
Amazon.com

Test Results

perceptual testing image
Design
Design
Style
Lighting Color No Lighting

The Logitech G603 has a simple, yet elegant, design that fits into any gaming or office environment. The gray top and black sides give the mouse a nice two-tone contrast, and the glossy programmable side buttons look good. It looks a bit like the Logitech G403 Wireless Gaming Mouse, except the top panel is all one piece and there aren't any seams where the left and right buttons are. Sadly, there's no RGB lighting.

Design
Shape
Length 4.9" (125 mm)
Height 1.7" (43 mm)
Width 2.6" (65 mm)
Grip Width
62 mm
7.5
Design
Portability
Volume
21.42 Cu. Inch (351 Cu. centimeter)
Cable/Receiver Storing
Yes

The Logitech G603 LIGHTSPEED wireless gaming mouse has good portability because of its wireless design, and there's a compartment to store the proprietary USB receiver.

Design
Weight
Maximum Weight With Wire
N/A
Maximum Weight Without Wire
145 g
Minimum Weight Without Wire
145 g
Weight Distribution
Back-heavy
Extra Weights
No

This is a heavy mouse and you can't remove or add any weight.

8.5
Design
Build Quality

Excellent build quality. The all-plastic body and the scroll wheel are both solid, but there's a slight rattle inside when you shake the mouse. The buttons are clicky and satisfying, and even though it doesn't have rubber grips, the sides don't feel slippery. The feet feel nice and allow you to move the mouse around smoothly.

8.5
Design
Comfort Of Use
Right-handed
Yes
Left-handed
No
Ambidextrous
No
Coating
Matte
Finger Rest
No

This mouse is very comfortable. It's designed for right-handed people because it has a slight slant to the right. It shouldn't cause any fatigue during long periods of use. Also, the side buttons are well-placed so that you won't accidentally press them, but they're not hard to reach. It's also easy to differentiate between them.

Design
Palm Grip: Hand Size Recommendation
Small Hand
Yes
Medium Hand
Yes
Large Hand
Yes
X.Large Hand
Yes

The Logitech G603 is designed for a palm grip and it's easy to reach all the buttons regardless of hand size.

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

Well-designed for a claw grip. The back of the mouse has a high profile, so it may be hard to reach the scroll wheel for those with small hands.

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

This mouse is suitable for a fingertip grip only for those with large hands. People with small or medium-sized hands may have difficulty reaching the buttons.

9.4
Design
Wireless Versatility
Bluetooth
Yes
Receiver
Yes
Battery Type
2x AA
Use When Charging
No ( Single use batteries)
On/Off Activation
Auto Off And On/Off Switch
Receiver Extender
Yes
Battery Indicator Yes

Unlike the similar Logitech G403 Wireless Gaming Mouse, the Logitech G603 can connect either through its proprietary receiver or through Bluetooth. It uses disposable batteries, so you won't have to worry about regularly charging it. Logitech advertises a minimum battery life of 500 hours and a maximum life of 18 months, but this isn't something we test.

0
Design
Cable
Cable Length N/A
Cable Type
No Cable
Permanent Kink
No
Port Type: Mouse End
No Port
Port Type: PC End
No Port

This mouse doesn't come with a cable. However, it comes with a USB extension cable for the receiver.

7.5
Design
Mouse Feet
Gliding Experience
Ok
Material
PTFE
Extra Included
No
Design
In The Box

  • Logitech G603 mouse
  • USB receiver
  • Batteries (2x AA)
  • USB extension
  • Manual

Control
Control
Sensor Specifications
Sensor Technology
Optical (LED)
Sensor Model
HERO
Works On Glass
No
Minimum CPI (DPI)
200 CPI
Maximum CPI (DPI)
12000 CPI
CPI (DPI) Adjustment Steps
50 CPI
CPI (DPI) Variation
-2 %
Minimum Lift Off Distance
1.2 mm
Maximum Polling Rate
1000 Hz
7.6
Control
Buttons
Buttons Activation
Mechanical
Total Number Of Buttons
6
Number Of Side Buttons
2
Number Of Programmable Inputs
11
Profile Switching Button
Yes
CPI (DPI) Switching Button
Yes
Gesture Support
No

You can reprogram every button on this mouse through the G HUB software. You can set a button for profile switching, but you need G HUB downloaded on the computer to do so because the mouse has on-board memory for one profile, and it takes the extra profiles directly from the software.

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 Logitech G603 has an incremented mouse wheel, but it doesn't offer infinite scrolling.

Control
Noise
Click Noise
Quiet
8.0
Control
Click Latency
Click Latency: Receiver
14 ms
Click Latency: Bluetooth
14 ms
Click Latency: Wired
N/A

The Logitech G603 has the same low click latency whether it's connected to its proprietary receiver or through Bluetooth, which is great.

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 HUB offers remarkable customization options. It's available on both macOS and Windows and you can reprogram any button. The mouse has on-board memory, but it only stores one profile at a time.

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

The Logitech G603 is fully compatible with both Windows and macOS.

Compared to other mice

The Logitech G603 is a good gaming mouse with a remarkable sensor. It's very similar to the Logitech G703 LIGHTSPEED Wireless Gaming Mouse with HERO Sensor, except it doesn't have RGB lighting and a built-in battery. It's better-built and more comfortable than some other Logitech mice, such as the Logitech G305 LIGHTSPEED. Unlike the Logitech G602, it doesn't have many side buttons, so it's not ideal for MMO gamers. Also see our recommendations for the best mice, the best Logitech mice, and the best wireless mice.

Logitech G703 LIGHTSPEED Wireless Gaming Mouse with HERO Sensor

The Logitech G703 LIGHTSPEED Wireless Gaming Mouse with HERO Sensor is slightly better than the Logitech G603 LIGHTSPEED. Both mice have the same shape and the G703 has RGB lighting. It has a slightly wider CPI range, a rechargeable battery, and it has RGB lighting. However, the G603 has Bluetooth support and it's more portable because it has a compartment to place the USB receiver.

Logitech G305 LIGHTSPEED

The Logitech G603 LIGHTSPEED is better than the Logitech G305 LIGHTSPEED. The G603 is better-built and it's better-suited for any sized hand with a palm grip. It has less CPI error and it has Bluetooth support. However, the G305 is lighter and it has a slightly lower click latency.

Logitech G604 LIGHTSPEED

The Logitech G604 LIGHTSPEED is much better than the Logitech G603 LIGHTSPEED. The G604 is more comfortable, it has lower click latency through its receiver, it has a wider CPI range, and there are many more side buttons. However, the G603 is better-built and it's smaller, making it easier to carry around.

Logitech G602

The Logitech G603 LIGHTSPEED is better than the Logitech G602. The G603 has Bluetooth support and a much better sensor with a wider CPI range and lower lift-off distance. However, the G602 has many more side buttons, making it a better choice for MMO gaming.

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