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HP Omen Reactor Gaming Mouse Review

HP Omen Reactor review: The HP Omen Reactor is a striking bit of kit, but does it provide a good experience for the price?


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Even with a few compromises, the HP Omen Reactor remains an excellent gaming mouse at this price.


  • Sharp, attractive design
  • Plenty of oppurtunity to customise
  • Feels fast and responsive where it matters


  • RGB lighting doesn't stand out much
  • Cable noise can be a bit distracting

Key Specifications

  • Review Price: £64.99
  • 16,000 DPI optical sensor
  • Weight: 160g
  • Adjustable palm rest
  • RGB lighting

What is the HP Omen Reactor Gaming Mouse?

The HP Omen Reactor is an unusual beast. One that at first glance presents a gaming experience that’s relatively familiar, yet under the hood you’ll find a few features that we’ve seldom seen in the enthusiast mouse space before.

More specifically, HP’s pitch-black device is one of the first to utilise optical-mechanical switches to theoretically provide faster and more responsive performance. This snazzy new feature aside, the Omen Reactor also boasts RGB lighting alongside abundant customisation options, making it an appealing package for PC players.

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HP Omen Reactor Gaming Mouse

The Reactor’s metal spring can be adjusted to accommodate a number of different grip styles.

HP Omen Reactor Gaming Mouse – Design, build and features

The HP Omen Reactor is a striking bit of a kit, boasting a distinctive matte black colour alongside an unorthodox yet undeniably compelling design. On first taking it out of the box it appeared unusual, but most of my doubts were cast aside the second I plugged it in and played around.

It feels great to use, largely due to a hand-rest that sits on the left-hand side, which eliminates the inevitable hand cramp that creeps in after long gaming sessions. The angular accents in the design that help separate the DPI button and scroll wheel also look great, striking a balance between traditional design elements and the edginess you’d expect from a device boasting the name “Omen”.

Aside from the two usual mouse buttons, a third can be found alongside the aforementioned platform that you can use to flick between web pages, menus and other elements. Once again, it’s placed in a way that feels natural.

Slide down the mouse itself and you’ll come across the Omen logo, which is enhanced by the implementation of customisable RGB lighting, the specifics of which we’ll get into later. Below this you’ll find a thick metal spring, the height of which can be adjusted to conform to different grip-styles. It’s a nice feature, but not one I found myself using all that much.

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HP Omen Reactor Gaming Mouse

Whip smart response times make the Reactor adept at fast-paced FPS games.

Oh and we have to mention the USB cable that’s attached to the HP Omen Reactor. We know it’s a weird comparison to make, but the braided steel cable is reminiscent of a snake, feeling strange in the hand with an almost stretch-like aesthetic. It’s super high quality, and not something we’ve seen on many gaming mice before.

Sadly, I’m not entirely sold on the DPI button to adjust the mouse’s sensitivity. I quickly found a sweet spot, but it doesn’t provide an accurate manner in which to adjust DPI to your liking.

HP Omen Reactor Gaming Mouse – Performance

During my testing period with the HP Omen Reactor, I played plenty of Destiny 2 and Overwatch, two first-person shooters that require fast, fluid reactions in order for you to emerge victorious –qualities that would need a robust gaming mouse to support them.

Luckily, they’re available here in spades. The 0.2-second response time combined with the optical-mechanical switches make each click feel marvellously responsive, every command you input leaping to the screen in no time at all. It’s great, particularly effective in shooters where several actions are unfolding at any given time.

The cable also comes into play here, gliding along my desk and seldom becoming tangled and causing a nuisance. Granted, the Omen Reactor can feel a bit heavy at times, lacking the deft movement you’d want from a high-tier gaming mouse. That being said, it’s hardly a dealbreaker.

Related: Best gaming keyboard

HP Omen Reactor Gaming Mouse

HP’s Omen Command Centre software lets you sync up your lighting options.

HP Omen Reactor Gaming Mouse – Software and lighting

You’ll need to download the Omen Command Centre software to make the most of the RGB lighting with this device. This lets you customise the lighting output to colour schemes of your choosing. There’s plenty on offer here, presenting a neat alternative to Razer Synapse if you’re familiar with the company’s range of products.

As far as the software is concerned, Command Centre is relatively painless to install and setup from the Microsoft Store. You can adjust lighting to your liking and also assign macro-keys more efficiently. It easily lives up to the standard set by Synapse, although not everyone will be a fan of giving their information to yet another bespoke client.

However, due to the Omen Reactor’s design, the lighting is almost always obscured by your hand whilst the device is in use. This makes customisation a bit redundant – unless you’re going to leave your PC on all the time, just to ogle as it cycles through different presets. 

Why buy the HP Omen Reactor Gaming Mouse?

Coming in at £64.99 at most retailers, the HP Omen Reactor presents decent build quality and a plethora of features that make it worthwhile for gamers who are after a decent mouse experience. It’s attractive, responsive and has a wire that feels like a snake. What’s not to love?

It’s a shame then that the RGB lighting feels like an afterthought, hardly surfacing during normal use due to it always being obscured by your hand.


Even with a few compromises, the HP Omen Reactor remains an excellent gaming mouse at this price.

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