On plugging the 2.4GHz Lightspeed dongle into a spare USB 3.0 port, the mouse instantly connected. It’s worked a treat on past products such as the stellar Logitech G613 wireless keyboard, and this remains the case here. Lightspeed is a custom tech designed to offer gamers an insane and unnoticeable 1ms response rate. Second, and more importantly, is the G903’s use of Logitech’s stellar Lightspeed wireless connectivity. This isn’t a unique feature, but the sensor is one of the best on the market and means the G903 has a fantastic 200-12,000DPI sensitivity range. Fortunately, this isn’t an issue at all with the G903 for a few reasons.įirst is its use of the PMW3366 optical sensor. They’re generally less responsive and more prone to latency than their cabled brethren. Performance is an area in which wireless mice have traditionally always fallen behind. Even with RGB lighting on, I easily achieved a fortnight of use from the G903, doing a couple of hours’ gaming each evening. But the combo still makes the G903’s wireless charging a fairly expensive luxury that most people won’t need – especially since I found that regular wireless battery life is excellent. The combined cost is still well below the £250 of the Razer Mamba + Firefly. The feature works in a similar manner to the Razer Mamba + Firefly, allowing the G903 to charge wirelessly when paired and sitting on top of Logitech’s £90 Powermat. Those who want to take advantage of the G903’s custom ‘Powerplay’ wireless charging will have to use the lighter Powercore disc, however. Whether you do the same will largely be down to personal preference. This clips into a dock on the mouse’s underside. Personally, I found the unhindered 110g weight a little on the floaty side anyway, and ended up using the 10g weighted disc. The only lighter option you’ll find is the even more expensive Razer Mamba + Firefly, which uses similar wireless charging tech to let the mouse operate without a battery. Unburdened of its bottom docking Powercore disc or 10g optional weight, the G903 weighs a meagre 110g. Unlike the Corsair, the G903’s side controls are located where your thumb would naturally sit, and the slightly arched, rounded back pushes your palm up so all the top controls are within easy reach at all times.ĭespite lugging around a battery with an impressive quoted 32 hours’ playtime, the G903 is also surprisingly light. In hand the mouse feels suitably ergonomic, especially when compared to rivals, like the Corsair Dark Core RGB SE, which has a less-intuitive button placement and chunkier chassis. Up top you’ll find basic buttons to adjust the G903’s DPI, and switch between a smooth or step action on its wheel, plus the usual left and right controls.Īlthough small, the ability to adjust the mouse wheel’s action is oddly useful – after a few weeks with the mouse, I found myself using the resistance-free option when scrolling the internet and doing creative work, switching back to the more precise step action while gaming. You may even choose to go all-out, and have four side buttons – although, personally, I think that’s overkill, even if you’re an avid MOBA or ARPG player. The idea here is to let gamers set up the mouse for either their left or right hand – which, as a lefty myself, is very welcome indeed. Out of the box, there are two extras on its left side and an option to add two more to the right using a magnetically attached plastic plug. Starting with the basics, the G903 comes with up to 11 keys, depending on how you set it up. Visuals aside, it ticks nearly all the right boxes for gamers and sports a few nifty design features you won’t find on many other gaming mice. If Acer made a Predator mouse then this is what I imagine it would look like. It features hard edges, RGB lighting galore and more programmable keys than you can shake a stick at. Visually, the G903 is a wee bit ostentatious for my taste. Logitech G903 – Design, build and features This makes it a seriously expensive luxury that’s complete overkill for most regular gamers. The only downside is that, to fully take advantage of all its features, you’ll have to shell out a further £90 for the company’s custom charging mat.
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