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.
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Great number of inputs.
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Comfortable to use.
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Fully compatible with Windows and macOS.
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No storage for wireless receiver.
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No side scrolling or infinite scrolling.
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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.
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Has weight optimization.
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Low click latency.
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Comfortable to use.
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No storage for wireless receiver.
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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.
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Low click latency.
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Great number of inputs.
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Comfortable to use.
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No storage for wireless receiver.
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Slightly bulky size.
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Comfortable to use.
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No storage for wireless receiver.
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Slightly bulky size.
- 7.2 Work
- 8.3 Video Games (FPS)
- 7.9 Video Games (MMO)
- 9.1 Raw Performance
- 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.
- Updated Feb 24, 2023: We've converted this review to Test Bench 1.4. This update modifies our Hand Size Recommendation test, adding a more granular hand size recommendation chart. We've moved several minor tests into different test groups, removed the Travel usage, and added a new Raw Performance usage. For more details, you can see our full changelog here.
- Updated Dec 15, 2022: We've simplified the name of this mouse from Logitech G703 LIGHTSPEED Wireless Gaming Mouse with HERO Sensor to Logitech G703 LIGHTSPEED with HERO Sensor.
- Updated Sep 27, 2022: Added a comparison to the recently reviewed Logitech G705 mouse.
- 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 10, 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.
- Updated Jun 13, 2022: We've updated this review to Test Bench 1.1, which revamped our click latency test methodology. We've updated the text to reflect our new results in various sections, including the Click Latency test box, Usages, Introduction, and other locations where we discuss click latency.
- Updated May 30, 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.
- Updated Oct 07, 2020: Fixed an error with the number of programmable inputs.
- Updated Oct 05, 2020: The G703 has received the newest firmware update (version 22.2.15), increasing the CPI range to 25,600 CPI.
- Updated Oct 05, 2020: Converted to Test Bench 1.0.
- Updated Sep 02, 2020: Fixed an error for 'Mouse Acceleration'.
- Updated Aug 28, 2020: Review published.
- Updated Aug 25, 2020: Early access published.
- Updated Aug 25, 2020: Our testers have started testing this product.
- Updated Jun 08, 2020: The product has arrived in our lab, and our testers will start evaluating it soon.
- Updated Jun 01, 2020: We've purchased the product and are waiting for it to arrive in our lab.
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.
Compared To Other Mice
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.
The Logitech G703 LIGHTSPEED with HERO Sensor and the Logitech G Pro Wireless are very similar performance-wise since they have the same sensor. The difference between the two is that the G703 is designed for right-handed use, while the G Pro Wireless is ambidextrous. The G Pro Wireless is lighter, has more programmable inputs, and its PTFE feet provide a smoother glide. The G703 has a marginally lower input lag and is more comfortable to use.
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 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 G703 LIGHTSPEED with HERO Sensor is a better gaming mouse than the Razer Basilisk X Hyperspeed. The Logitech is a bit smaller and lighter, and it's well-suited for a palm grip. It has a wider CPI range, less CPI variation, and a lower lift-off distance. It's also possible to use it wired or wirelessly, while the Razer is a wireless-only mouse. The Razer supports Bluetooth and uses AA batteries instead of being rechargeable, which some people may prefer. It also has a thumb rest, and its shape fits more hand sizes and grip types.
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.
The Razer DeathAdder V2 is marginally better than the Logitech G703 LIGHTSPEED with HERO Sensor. The Razer is lighter and more comfortable to use, and its PTFE feet provide a smoother glide. On the other hand, the Logitech is wireless and fully compatible with macOS, and its sensor is more consistent.
The Razer Viper Ultimate is slightly better than the Logitech G703 LIGHTSPEED 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.
Overall, the Logitech G604 LIGHTSPEED is better than the Logitech G703 LIGHTSPEED with HERO Sensor. However, they're very different mice. The G604 is much heavier, and it has a lot more buttons, making it more suitable for MMO games. It also has a scroll wheel that supports tilt inputs and can be unlocked for infinite scrolling. On the other hand, the G703 is lighter and has weight optimization, and it can be used wired or wirelessly.
The Logitech G502 LIGHTSPEED and the Logitech G703 LIGHTSPEED with HERO Sensor perform very similarly, but they have completely different designs. The G502 is a large and heavy mouse with an ergo-shaped body and a thumb rest. It also has significantly more programmable inputs and a more aggressive gaming look. On the other hand, the G703 is smaller and much lighter, with a sleek design and half the buttons.
The Logitech G703 LIGHTSPEED with HERO Sensor and the Logitech G403 HERO have very similar designs and perform almost the same. However, the G703 can be used wirelessly with its USB receiver, while the G403 is a wired-only mouse. Both options are somewhat lightweight, very comfortable, and well-suited for a palm grip. They use the same sensor and have the same number of buttons.
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 G703 LIGHTSPEED with HERO Sensor and the Logitech G705 are both wireless gaming mice, but they have some notable differences. The G705 is a fairly small mouse, so it's best suited for smaller hands, while the G703 is a larger and bulkier mouse that small hands may find too large in certain grip types. Also, the G705 offers Bluetooth connectivity, better feet, and more RGB zones, as it's a more premium mouse than the G703.
The Logitech G703 LIGHTSPEED with HERO Sensor and the Razer DeathAdder V2 X Hyperspeed are wireless gaming mice. The Logitech feels better built and has RGB backlighting. Also, you can use it with its braided cable if you prefer a wired connection. On the other hand, the Razer has Bluetooth support. Also, it has more programmable inputs and two CPI buttons on the edge of its left click. Its mouse feet are of better quality and they glide much smoother.
The Logitech G703 LIGHTSPEED with HERO Sensor and the Razer DeathAdder V2 Pro are both great gaming mice that are also quite versatile. Both are somewhat lightweight and have a sleek and simple design. The Razer has better feet and more programmable buttons, while the Logitech has a wider CPI range, less CPI variation, and a lower lift-off distance. Both options can be used wired or wirelessly with their USB receiver, and the Razer also supports Bluetooth.
The Logitech G703 LIGHTSPEED with HERO Sensor is a better gaming mouse than the Razer DeathAdder Essential. The Logitech is a wireless gaming mouse with a much wider CPI range, a more precisely adjustable CPI, a lower lift-off distance, and a much lower latency. Also, it has onboard memory to save your settings to, and if you want to use it wired, its cable doesn't retain packaging kinks.
The GLORIOUS Model D and the Logitech G703 LIGHTSPEED with HERO Sensor are both gaming mice with right-handed shapes. The GLORIOUS is wired-only, while the Logitech connects with a charging cable or wirelessly with its USB receiver. The GLORIOUS is significantly lighter and has feet that glide more smoothly on mousepads and desks. On the other hand, the Logitech feels sturdier and has a wider CPI range. It also has a more precisely adjustable CPI, a lower lift-off distance, and somewhat lower click latency. Also, it has software compatible with Windows and macOS, while the GLORIOUS mouse only has software compatible with Windows.
The Logitech G703 LIGHTSPEED with HERO Sensor and the Razer Mamba Wireless are very similar. The Logitech is lighter and has weight optimization, and its click latency is lower. On the other hand, the Razer has more buttons and is more portable since it has a compartment to store the wireless USB receiver.
The Logitech G703 LIGHTSPEED with HERO Sensor is better for most uses than the GLORIOUS Model O Wireless. The Logitech has a much higher maximum CPI, more programmable inputs, and lower click latency. However, the GLORIOUS is better for fans of ultra-light mice since it's significantly lighter, and the feet provide a better gliding experience.
The Logitech G703 LIGHTSPEED with HERO Sensor is a better wireless gaming mouse than the HyperX Pulsefire Dart. The Logitech is lighter and feels sturdier. It also has a more flexible charging cable, a wider CPI range, a more consistent sensor, a lower lift-off distance, and much lower click latency. It also has software compatible with Windows and macOS, while the HyperX only has software compatible with Windows. Both mice are suitable for all grip types and most hand sizes.
The Corsair SABER RGB PRO WIRELESS and the Logitech G703 LIGHTSPEED with HERO Sensor are right-handed gaming mice. The Corsair has a higher maximum polling rate of 2000Hz and has marginally lower click latency. It also has Bluetooth support, which the Logitech lacks. On the other hand, the build quality of the Logitech feels higher quality.
The Logitech G703 LIGHTSPEED with HERO Sensor is a better gaming mouse than the SteelSeries Rival 3 Wireless. Although they're both wireless, the SteelSeries is better for travel, thanks to its USB receiver storage, which the Logitech lacks. However, the Logitech is more comfortable for right-handed people thanks to its slightly curved shape and well-placed buttons. It has a wider, more adjustable CPI range, lower click latency, and a lower lift-off distance, but it doesn't have Bluetooth.
The Vaxee OUTSET AX and the Logitech G703 LIGHTSPEED with HERO Sensor are excellent gaming mice with similar shapes. The Vaxee is a wired mouse with a slightly taller hump, a fuller back, and textured L/R mouse clicks. It's also significantly lighter than the Logitech, but it has no companion software and only four default CPI settings onboard. The Logitech is wireless, has a slightly lower click latency, lower CPI variation, and a much broader CPI range. It also has companion software that lets you set the CPI much more precisely, and it allows you to reprogram buttons and set custom RGB lighting.
The Logitech G703 LIGHTSPEED with HERO Sensor is an excellent wireless gaming mouse, while the G-Wolves Skoll SK-S ACE Edition is an excellent ultra-light wired gaming mouse. You can use the Logitech wirelessly via its USB receiver, and it has more programmable inputs thanks to its G-Shift feature, which gives you a second layer of controls. Also, its click latency is significantly lower. On the other hand, the G-Wolves has a honeycomb design that helps makes it much lighter. Also, it has a better quality paracord-like cable and smoother-gliding mouse feet.
The Logitech G703 LIGHTSPEED with HERO Sensor is a better wireless gaming mouse than the HP OMEN Photon. The Logitech is considerably lighter and feels sturdier. It also has a more flexible charging cable, a much higher maximum CPI, a more precisely adjustable CPI, and much lower click latency. On the other hand, the HP has modular parts, including thumb and pinky rests and two optional side buttons per side, while the Logitech only has two side buttons on the left and no finger rests. It also has a mouse wheel with L/R tilt buttons. Unfortunately, its software requires you to log into an account to configure more than one profile, a requirement the Logitech software doesn't have.
The Logitech G703 LIGHTSPEED with HERO Sensor and the MSI CLUTCH GM41 LIGHTWEIGHT WIRELESS are wireless gaming mice with similar performance. The Logitech feels sturdier and has a more flexible charging cable. It also has a higher maximum CPI, a more precisely adjustable CPI, a more consistent sensor, and lower click latency. You can also set a G-Shift button to enable a second layer of commands, and the customization software is compatible with Windows and macOS. In contrast, the software for the MSI is only available for Windows. On the other hand, the MSI is lighter and has mouse feet that glide more smoothly.
Test Results
The Logitech G703 LIGHTSPEED has a sleek design and looks nearly identical to the Logitech G403 Prodigy Wireless. It has a matte finish that feels soft to the touch, and the rubber grips on the sides blend in well with the rest of the mouse. The logo and the scroll wheel have RGB lighting built-in, which you can customize via software. The lighting is visible even in a well-lit room. It isn't too heavy on the gamer aesthetic, so it shouldn't look out of place in a work environment. If you're interested in a mouse with a similar design language and shape but without RGB lighting, check out the Vaxee OUTSET AX. If you enjoy the less aggressive aesthetic but want more visible RGB lighting, the Logitech G705 hits a good sweet spot between a soft gaming aesthetic and RGB lighting.
Even though the Logitech G703 is a wireless mouse, it's on the bulky side, and there's no compartment to store the USB receiver, making it less ideal for portable use.
The build quality is excellent and identical to the wired Logitech G403 HERO. It's all plastic, but everything feels solid and sturdy. The buttons are clicky and satisfying, and the sides are nice and grippy. The feet are good quality and allow the mouse to slide around smoothly.
The Logitech G703 LIGHTSPEED is a fairly heavy mouse. You can also make it heavier by adding the included 10g weight, which is kept in place by a plastic, magnetic cover on the mouse's underside. If you want the mouse to be lighter, you can remove the cover entirely, shedding another 3g.
The Logitech G703 LIGHTSPEED is very comfortable and shouldn't cause any fatigue. It's slightly slanted and designed for right-handed use. The side buttons are well-placed, as they're high enough that you won't trigger them accidentally but still close enough to reach comfortably. They're also big and easy to differentiate by feel. The mouse is on the bulky side, and it has a fairly big hump that makes it less ideal for those with small hands and using a fingertip grip.
The Logitech G703 can only connect wirelessly using the included USB receiver since it doesn't have Bluetooth capability. It has a built-in rechargeable battery, and it's usable while charging. The battery is rated to last up to 35 hours with the RGB lighting on and 60 hours with it off; however, we don't test battery life. If you're interested in a wireless gaming mouse with Bluetooth support, check out the ASUS ROG Keris Wireless.
The cable is braided and of good quality. It's flexible and doesn't keep any kinks. Although the connector looks proprietary, it's just a regular micro-USB connector, so you can use any cable that you like. If your desktop computer is placed far enough to affect performance, a receiver extension adapter allows you to place the receiver closer to you. When the mouse is plugged in, data is sent via the wired connection, not wirelessly.
- Logitech G703 LIGHTSPEED HERO
- USB wireless receiver
- Receiver extension adapter
- 1x 10g weight
- Micro-USB cable
- User guide
Update 10/07/2020: We increased the total number of programmable inputs by one. We incorrectly listed that you can't reprogram the left button without assigning the left click action to another button, but you can reprogram the button.
You can switch profile and CPI setting directly on the mouse, and all the buttons are programmable through G HUB. The mouse has two side buttons on the left side, which might not be enough for more serious MMO players. If you're interested in a similar wireless gaming mouse that has hot-swappable left and right click switches, check out the ASUS ROG Strix Impact II Wireless.
The click latency is excellent and well-suited for gaming, whether you use it wired or wirelessly with its USB receiver.
The mouse wheel is incremented, but unfortunately, you can't unlock it for infinite scrolling like some other office-oriented Logitech mice, and it also doesn't support tilt inputs.
The Logitech G703 HERO has superb software support. Logitech's G HUB lets you customize the two RGB lighting zones, remap buttons, program macros, and adjust performance settings. There's onboard memory to save your profiles, so you can access them on a computer that doesn't have G HUB installed. There weren't any software issues during testing, but many users online have reported various problems trying to use the Logitech G HUB software, 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.