The Logitech G703 LIGHTSPEED with HERO Sensor is a great wireless gaming mouse. It's well-built and has a comfortable shape that suits most grips and hand sizes. Click latency is also excellent, whether you play wired or wirelessly through its USB receiver. Its HERO sensor provides exceptional performance, with a wide CPI range, short lift-off distance, and high polling rate. The buttons are clicky and satisfying, and they're all programmable via G HUB, where you can also adjust performance settings and customize the RGB lighting. While the scroll wheel feels sturdy, it doesn't support tilt inputs, and you can't unlock to scroll through long documents quickly. On the upside, it's fully compatible with Windows and macOS, and it has on-board memory to store profiles.
Our Verdict
The Logitech G703 is a great mouse for office use. It's a well-built mouse with a comfortable shape to use for long hours. It has a total of six buttons, all of which are programmable. Unfortunately, while its wireless connection allows you to keep your setup clean, it needs a wireless USB receiver since it doesn't have Bluetooth capability. Also, the scroll wheel can't tilt for side-scrolling, and you can't unlock it for infinite scrolling.
- Great number of inputs.
- Comfortable to use.
- Fully compatible with Windows and macOS.
- No storage for wireless receiver.
- No side scrolling or infinite scrolling.
- Slightly bulky size.
The Logitech G703 is excellent for FPS games. Its wireless connection and fairly lightweight design allow you to move freely and quickly. It has low click latency, a CPI setting that you can adjust in small increments, and a high polling rate that makes your movements feel smooth. It's suitable for most grips and hand sizes, and shouldn't cause fatigue over time.
- Has weight optimization.
- Low click latency.
- Comfortable to use.
- No storage for wireless receiver.
- Slightly bulky size.
The Logitech G703 is excellent for playing MMO games. It has a good number of buttons, all of which are macro-programmable through G HUB, but it won't give as many as dedicated MMO mice. It's very comfortable to use and shouldn't cause fatigue during those hours-long raids. It has a wide CPI range, and you can adjust the CPI setting in small increments to get it exactly to your liking.
- Low click latency.
- Great number of inputs.
- Comfortable to use.
- No storage for wireless receiver.
- Slightly bulky size.
- Comfortable to use.
- No storage for wireless receiver.
- Slightly bulky size.
Changelog
- Updated Aug 19, 2025: We've converted this review to Test Bench 1.5.1. This update removes less relevant or redundant elements, including several videos. We've also adjusted our Sensor Latency testing, resulting in minor score changes. See our full 1.5.1 changelog for details.
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Updated Feb 27, 2025:
We've added a link to the newly reviewed Pulsar X3 in the Weight section.
- Updated Jan 05, 2024: We've updated the CPI graph displayed in the Sensor Latency section of this review. Our results remain the same, but these graphs have two new columns with results from the Delay At Half Movement and Delay To End Of Movement tests.
- Updated Dec 01, 2023: We've converted this review to Test Bench 1.5. This update adds a new Main Button test group, which provides button actuation data and switch information. We've also made minor changes to how we calculate the Office usage score. For more details, you can see our full changelog here.
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Differences Between Sizes And Variants
There are two versions of the Logitech G703 LIGHTSPEED. Although they look identical, the original version (non-HERO) has a PMW3366 sensor with an advertised 200 to 12,000 CPI range, while the HERO version that we reviewed has a 100 to 25,600 CPI range. We reviewed the HERO version, and don't expect our review to be valid for the older model.
Popular Mouse Comparisons
The Logitech G703 LIGHTSPEED is a great overall gaming mouse and seems to be a nice upgrade over the previous model thanks to the latest sensor, although we didn't test the older one. However, if you want a wireless Logitech mouse with more side buttons for MMO gaming, you can also look at the Logitech G604 LIGHTSPEED, although it's a bit more expensive. For a wired-only option, take a look at the Logitech G403 HERO. For more options, check out our recommendations for the best wireless gaming mouse, the best FPS mouse, and the best gaming mouse.
For most uses, the Logitech G703 LIGHTSPEED with HERO Sensor is better than the Logitech G305 LIGHTSPEED. The G703 is lighter, more comfortable to use, and has better performance due to its wider CPI range and lower CPI variation. Its build quality also feels better, and it has RGB lighting, which the G305 lacks. However, the G305 is smaller and more portable, and its ambidextrous shape makes it more suitable for left-handed use even though its side buttons are on the left side.
Overall, the Logitech G903 LIGHTSPEED is better than the Logitech G703 LIGHTSPEED with HERO Sensor. The G903 has twice as many buttons, and you can unlock the scroll wheel for smooth scrolling and tilt inputs. Also, the G903 has a shape that fits a broader range of hand sizes and grips. However, the G703 has lower click latency and a wider CPI range.
The Logitech G703 LIGHTSPEED with HERO Sensor and the Logitech G502 HERO perform similarly as they have the same sensor but are different in design. The G502 is slightly bigger and has a more aggressive gamer-centric look, with twice the amount of buttons. The G703 is smaller and lighter and features a rather sleek and simple design. It’s also more versatile, as you can use it wirelessly with its USB receiver.
The Logitech G PRO X SUPERLIGHT and the Logitech G703 LIGHTSPEED with HERO Sensor are excellent wireless gaming mice. If you prefer having a very light mouse and smoother-gliding feet, go with the SUPERLIGHT, but if you like having a bit more weight and RGB lighting, you may prefer the LIGHTSPEED.
Test Results
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