The Logitech G603 LIGHTSPEED is a great wireless gaming mouse in Logitech's G Series lineup. It offers what most gamers are looking for, including excellent click latency, a wide CPI range, and minimal CPI variation. You can also adjust the CPI in increments of 50. 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. Unfortunately, it's heavy compared to most gaming mice. Also, it only has two side buttons, so it isn't as versatile as most heavier mice with additional features and programmable buttons.
Our Verdict
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 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.
- Very comfortable to use.
- Excellent build quality.
- Good selection of programmable buttons.
- Basic mouse wheel with no wheel tilt.
The Logitech G603 is a decent mouse for FPS gaming, but it's heavy, so it's a bit more difficult to move around for quick actions. Still, it has excellent click latency, a wide CPI range, and minimal CPI variation. It's very comfortable, and it feels well-built too. You can also reprogram every button through the G HUB software.
- Very comfortable to use.
- Excellent build quality.
- Excellent click latency.
- On the heavy side.
- No weight optimization.
The Logitech G603 is a good mouse for MMO gaming but isn't specifically for this use, and it has far fewer buttons than a dedicated MMO gaming model. That said, you can reprogram every button on the mouse, though it only has two side buttons. Fortunately, it has excellent click latency, a wide CPI range, and minimum CPI variation. It's also very comfortable and feels very sturdily built.
- Very comfortable to use.
- Excellent build quality.
- Good selection of programmable buttons.
- Excellent click latency.
- Only two side buttons.
- Basic mouse wheel with no wheel tilt.
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 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.
- Very comfortable to use.
- Excellent build quality.
- Fully compatible with both Windows and macOS.
- On the heavy side.
Changelog
- Updated Sep 08, 2022: We've converted this review to Test Bench 1.3. This update adds a new Sensor Latency test and makes minor changes to several of our existing tests, resulting in test result changes in several sections. For more information, you can check out our full changelog here.
- 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.
- Updated Aug 17, 2022: Following the update to Test Bench 1.2, some of our test results have changed within both the Weight and CPI sections. We've added or modified some of the text in this article to clarify these changes.
- Updated Aug 15, 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.
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Popular Mouse Comparisons
The Logitech G603 is a good gaminLogitech G703 LIGHTSPEED 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, like the Logitech G305 LIGHTSPEED. Unlike the Logitech G602, it doesn't have many side buttons, so it isn't ideal for MMO gamers.
Also see our recommendations for the best mice, the best Logitech mice, and the best wireless mice.
The Logitech G703 LIGHTSPEED 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.
The Logitech G603 LIGHTSPEED is better than the Logitech G305 LIGHTSPEED. The G603 feels better built and is better suited for any hand-size with a palm grip. It also has Bluetooth support. On the other hand, the G305 is lighter and has a marginally lower click latency.
The Logitech G604 LIGHTSPEED is much better than the Logitech G603 LIGHTSPEED. The G604 is more comfortable, has lower click latency through its receiver, has a wider CPI range, and has many more side buttons. However, the G603 is better-built, and it's smaller, making it easier to carry around.
The Razer Basilisk X Hyperspeed and the Logitech G603 LIGHTSPEED are decent FPS gaming mice that perform better for the office. The two mice can only be used wirelessly via Bluetooth or their USB receiver, and both have the same number of buttons and comparable sensors. Shape-wise, the Razer is quite a bit bigger and has a thumb rest on the left side. It’s a great fit for almost any hand size or grip type. On the other hand, the Logitech is fairly heavy and is better suited for a palm grip.
Test Results
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