In the chase for ever-lighter mice, many brands use brute force by punching a bunch of holes in every surface or by removing entire sections to reduce material weight. However, Corsair goes in the other direction by implementing a regular full-frame design while managing to somehow keep the weight extremely low. The result is the 36-gram Corsair Sabre v2 Pro Ultralight Wireless mouse, and I’m taking a look at it today.
Corsair Sabre v2 Pro Ultralight Wireless
£89.99 / $99.99
Pros
- Super light
- 8,000Hz polling
- Bundled skates and grips
- No software needed
Cons
- One on-board profile
- Limited software customisation
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Built for FPS players who demand speed, agility, and precision, the Sabre v2 Pro Ultralight saves weight wherever possible, from battery size to RGB lighting. With an undeniably impressive 36 grams on the scales, it represents an ideal choice for games who require fast tracking and quick target switching, all while reducing fatigue during extended play sessions. To get an idea of how scant the weight really is, the M75 Wireless, which is around what you could expect from a typical gaming mouse, is around 2.5 times heavier. Even competing mice that use magnesium or perforated shells to save weight are still often above the Sabre v2 Pro Ultralight’s 36 grams.
As far as I can tell, this is the lightest mouse with such specs. When I held it the first time – moving from a 68g Asus ROG Strix Impact III Wireless – it felt like one of those dummy models that are empty inside. Funnily enough, the USB cable that comes with it weighs more.
Though a strong point, weight, or lack of, isn’t the only feature the Sabre v2 Pro Ultralight has to offer. To further appeal to the gaming crowd, it comes equipped with a high-DPI sensor, customisable buttons, and 8,000Hz hyper-polling. While I am no pro gamer, I greatly appreciate the effortless flick-shots possible with this mouse. Unlike heavy mice, it feels like an extension of your arm. Surprisingly, you can get it for £89.99 / $99.99 / €109.99, backed by a two-year warranty, where many competing mice ask for £100 or more.
Design
The Sabre v2 Pro Ultralight is available in black or white, measuring 119.16mm (L) x 62.55mm (W) x 38.21mm (H). This is an average size, leaning more towards the compact medium mice, which should make it easy to hold for most hand types. For instance, it’s not that big compared to the M75 Wireless. Note, however, that while it has a symmetrical shape, it is only right-handed, due to the side buttons located on the left. Left-handed users should still be able to use it if they don’t mind disabling the side buttons on Corsair’s hub.
Understandably, this weight reduction has to come from somewhere, and that place seems to be the thickness of the plastic. For example, when the charging light is on, you can see it shine through the thin plastic of the right button. And if you squeeze the sides or bottom with a bit of force, you can see the frame deform. Nothing to worry about, since normal usage doesn’t show up any issues.
In the box, you receive the mouse, a USB Type-C to A cable, an 8,000Hz wireless receiver, some grip tape, and replacement mouse skates. From the outside, the Sabre v2 Pro Ultralight looks like any regular mouse; you wouldn’t suspect it’s been on a diet of plastic Ozempic. It offers a basic five-button layout and glides on top of two half-circle skates. Replacing these with the larger replacement skates plus the grip tapes should add a couple of grams to the total weight, but you are unlikely to notice it, unlike the improved mouse control.
Hardware
While its 36 grams are enough to convince many who favour super-light rodents, the Sabre v2 Pro Ultralight doesn’t stop there, packing hardware that should please even the most demanding gamers. For starters, it boasts Corsair’s Marksman S optical sensor, rated for true 33,000DPI detection, 750IPS tracking speed, with 99.7% resolution accuracy, and 50G of acceleration. All of this is combined with an 8,000Hz polling rate, ensuring responsive inputs even during intense combat. No complaints here.
Keep in mind that higher polling rates demand more powerful machines to handle the number of input reports. As an example, on my Ryzen 5 7600X system, moving the mouse at high speed loaded the CPU by an extra 17%, up from 6% using 1,000Hz polling. Depending on how the mouse firmware and driver handle motion data, this CPU load can increase further using higher DPI settings. The good news is that for most users, 1,000Hz is more than enough.
| Specifications | Corsair Sabre v2 Pro Ultralight Wireless |
|---|---|
| Sensor | Corsair Marksman S |
| Resolution | From 100 to 33,000DPI, with 50 DPI steps |
| Max speed | 750IPS |
| Connectivity | Wired or 2.4GHz wireless |
| Polling rate | Up to 8,000Hz via 2.4GHz or wired |
| Total buttons | 5 |
| Battery capacity | 210mAh |
| Battery life rating | Up to 70 hours at 1,000Hz |
| Weight | 36g |
| Dimensions | 119.16mm x 62.55mm x 38.21mm |
| MSRP | £89.99 / $99.99 / €109.99 |
Moving to the buttons, the Sabre v2 Pro Ultralight is equipped with switches, rated for 100-million clicks, that are quite tactile, giving both physical and audible feedback. I couldn’t feel any gap between the plastic and the switch, making each click feel responsive and instantaneous. The pill-shaped side buttons are less clicky, though not bad by any means. The rubberised scroll wheel, meanwhile, is fine, with easily distinguishable steps, but there is no free-spin mode or side clicks. A reasonable trade-off to shave off some weight.
The battery isn’t spared the weight-saving treatment, either, as Corsair chooses a small, 210mAh lithium-ion pack to cover all the mouse’s needs. The brand advertises up to 70 hours of battery life using the 2.4GHz connection at 1,000Hz polling, which sounds about right. I used it for multiple days before needing to recharge it, which is great since I can’t stand how the USB cable negates its light weight. In any case, charging it back to 100% takes about 90 minutes.
Software
Software is another strong point of the Sabre v2 Pro Ultralight. Gone are the days of having to install yet another app to control your new peripheral; now you only need to enter a web page in your browser, and you can customise the mouse to your heart’s content. Though note that some browsers, such as Firefox, are not supported.
In the software you will find all the controls available in a sleek and fast interface, allowing you to customise key assignments, DPIs, macros, and polling rate. You will also find firmware updating, a battery-charge indicator, and sleep-time adjustments that are by default set to three minutes. Speaking of which, moving the mouse is sufficient to wake it up.
If, for some reason, you don’t want or can’t use the software, note that you can also change your DPI on the fly by long-pressing the right mouse button and the back side button for three seconds. This will switch to the next DPI stage that you have saved on the onboard profile via Corsair’s hub, with the colour of the light indicating the selected DPI. By default, these are set to 400DPI (Red), 800DPI (Blue), 1,200DPI (Green), 1,600DPI (Yellow), and 2,000DPI (Pink).
The main issue here, however, is the lack of multiple on-board profiles, as the Sabre v2 Pro Ultralight only holds one. This is more of an inconvenience than an issue, but worth noting if you care about such features. I find the lack of customisable lift-off distance and surface calibration bigger omissions, so hopefully they can be added later. Mind you, I didn’t notice any issue, both using the mouse on glass and a regular Corsair pad. On the other hand, while Corsair only lists compatibility with Windows 10 and 11, I can confirm that this mouse is correctly detected on Apple’s Mac laptops.
Conclusion
To sum it up, the Sabre v2 Pro Ultralight is a mouse that focuses on weight reduction and overall performance. It does so without having to use any tricks, offering you a standard shape that can be easily maintained. This means leaving anything that isn’t necessary out. There is no Bluetooth connectivity, the battery is small, though sufficient, and the frame isn’t the sturdiest. Its 36 grams puts it among the lightest mice ever, representing Corsair’s best in this department. As a reference, the lightest mouse Corsair has had until now is the M75 Air, coming in at a relatively obese 60g.
In fact, I am sure Corsair could have saved even more weight by removing the side buttons and offering a basic mouse design, perhaps reaching the 30g mark. That said, I am happy this isn’t the case since I use these a lot in-game, to open inventory in Destiny 2 and push-to-talk in voice chats, for example.
The overall shape is comfortable to clutch, especially when using the bundled grips and skates. I found the latter more enjoyable to use, as they leave no room for debris to accumulate. And above all, Corsair isn’t asking an exorbitant fee. To put it simply, if you are in the market for a super-light mouse, the Corsair Sabre v2 Pro Ultralight Wireless should definitely be on your list. Yes, you may miss some features, but the important ones are absolutely present.
