The Logitech G903 HERO is a great gaming mouse. It's an upgrade over the Logitech G903 LIGHTSPEED because it features the HERO 25K sensor, which provides a very wide CPI range that you can adjust in small increments. It has low click latency whether you're using it over its USB receiver or wired, it has a high maximum polling rate, and the sensor remains consistent when moving at a fast speed. It's well-built, glides smoothly, and its ambidextrous design should feel comfortable for most people using any grip. Sadly, it's heavy and not designed for ultra-light gaming, but it comes with a 10-gram weight if you want to make it even heavier.
The Logitech G903 HERO is great for office use. It's well-built and comfortable to use whether you're left or right-handed. You can reprogram almost any of its buttons and you can unlock the wheel for infinite scrolling. It's wireless, but can only be used wirelessly with its proprietary receiver, and not Bluetooth.
The Logitech G903 HERO is great for FPS gaming. It has low click latency whether you're using it wired or wirelessly. It has a very wide CPI range and the sensor is very consistent when you move it quickly. It's well-built and comfortable to use, but unfortunately, it's a heavy mouse.
The Logitech G903 HERO is excellent for MMO gaming. Although it doesn't have as many side buttons as most MMO gaming mice, it has an excellent number of programmable inputs. It has low click latency, a wide CPI range that you can adjust in small steps, and it has a high maximum polling rate.
The Logitech G903 HERO is decent for ultra-light gaming. It's much heavier than most ultra-light mice, and there's not much weight optimization to make it lighter. However, it has low click latency and glides around smoothly thanks to its good feet and flexible cable.
The Logitech G903 HERO is okay for travel use. It's wireless, but it may be too bulky to carry around and doesn't have a slot to store the USB receiver. However, it's well-built, comfortable, and you can use it either with Windows or macOS.
The Logitech G903 HERO looks exactly like the Logitech G903 LIGHTSPEED. It has an ambidextrous shape with an aggressive gamer design. It's mainly made out of matte plastic, but there are glossy accents on the side buttons and near the scroll wheel. There are independent RGB zones below the CPI switch buttons and on the Logitech branding on the back.
This mouse is difficult to carry around. It may be too bulky for some laptop cases, and there's no place to store the USB receiver.
The Logitech G903 HERO is front-heavy, but you can add a 10-gram weight in the back to even out the balance. You can also remove the plastic covering for the weight, the side panel, and the side buttons if you want to make it somewhat lighter.
This mouse has great build quality. It's well-built and the plastic body feels solid. The scroll wheel is made of metal with a rubber grip, and it wobbles when you shake the mouse because it has a tilt feature. The button that unlocks the infinite scrolling wobbles a bit as well. The side buttons and side panels detach magnetically, and they don't wobble at all when attached.
The Logitech G903 HERO has an ambidextrous design that's quite comfortable. You can place the side buttons on either side, depending on which hand you use. The buttons are well-placed and the matte finish on the body helps with grip.
The Logitech G903 HERO is suitable for any hand size using a palm grip.
Those with any hand size should be able to comfortably reach all the buttons using a claw grip.
People with small hands may have a hard time reaching the side buttons using the fingertip grip.
The Logitech G903 HERO can only connect to your computer via its proprietary receiver. It comes with an extender to place the receiver closer to your mouse. The battery is advertised to last up to 140 hours with its default RGB lighting and up to 180 hours without lighting, but we don't test for this.
This mouse comes with a great braided cable. It's well-made and is fairly flexible. Data is sent through the cable when it's plugged in.
The feet are good. It glides well both on a mouse pad and directly on a desk. Despite having sharp edges, it doesn't make much noise when used on a desk. The feet are a bit thick and there are third-party feet available for purchase.
The Logitech G903 HERO uses the HERO 25K sensor. It has a very wide CPI range that you can customize in small increments. The sensor is very consistent and has a small lift-off distance. You can adjust the polling rate to 125Hz, 250Hz, 500Hz, and 1000Hz. Note that you may have to update your mouse through the G HUB software to get the max 25,600 CPI.
There's an excellent amount of programmable buttons. You can reprogram any of the buttons except the profile switch and scroll lock buttons. You can access a second layer of programmable inputs with the G-Shift feature, which you need to assign to a button first.
The mouse wheel has a rubber grip and each step is well-defined. You can unlock it for infinite scrolling.
The Logitech G903 HERO is quiet and shouldn't bother people around you.
The click latency is very low and it stays about the same whether you're using it wired or through its proprietary receiver.
The Logitech G HUB software offers incredible features. It's available on both macOS and Windows, you can customize the RGB, and reprogram buttons. It's easy-to-use and the interface is clear and simple. The mouse has onboard memory, so you can use its settings on another computer without the software downloaded.
The Logitech G903 HERO is slightly better than the Logitech G502 HERO, but they have the same sensor. The G903 is wireless, and it's better suited for those with small hands using the claw or palm grip. However, the G502 is wired, feels better built, and is more comfortable overall.
The Logitech G903 HERO is slightly better for gaming than the Logitech G502 LIGHTSPEED, but both are great versatile mice with the same sensor. The G903 has an ambidextrous design and a narrower shape that's well-suited for more hand-sizes. It's also a little bit lighter, has slightly lower click latency, and its feet provide a better gliding experience. On the other hand, the G502 feels better-built and is more comfortable overall, thanks to its ergonomic shape and thumb rest.
The Logitech G Pro Wireless is slightly better overall than the Logitech G903 HERO, but they use the same sensor. The G Pro is smaller, lighter, feels better-built, and the feet provide a better gliding experience. However, the G903 has a better, braided cable, you can unlock the scroll wheel for infinite scrolling, and it has more buttons.
The Razer Viper Ultimate is better for most uses than the Logitech G903 HERO. The Razer has slightly lower click latency, is more comfortable, and has much better feet, so it glides better. However, the Logitech has a higher max CPI, less CPI variation, and the G HUB software is available on macOS, while the Razer Synapse 3 software isn't.
The Logitech G900 Chaos Spectrum is a predecessor of the Logitech G903 HERO. The G903 HERO includes an optional 10g weight so you can center the weight distribution. It also has a much higher maximum CPI range, a more consistent sensor, and better click latency. Both mice are very well suited for all grip types, but small hands may struggle to reach all buttons using a fingertip grip.
The Logitech G903 HERO is a better gaming mouse than the Mad Catz R.A.T. 4+. The Logitech feels sturdier and has an ambidextrous shape. It connects with its charging cable or wirelessly with its USB receiver. It has mouse feet that glide more smoothly, and it has one additional side button and four more buttons total. It also has a wider CPI range, much lower click latency, and software compatible with Windows and macOS, while the Mad Catz only has software compatible with Windows. On the other hand, the Mad Catz is a wired-only mouse that's a bit lighter and has a right-handed shape with an adjustable palm rest.