Razer DeathAdder V4 Pro review: A familiar shape with next-gen internals
The new DeathAdder V4 Pro has arrived, and this time it comes bundled with the 8,000Hz dongle.
Note: This review was first published on 25 July 2025.
As someone who spends a decent amount of time on PC gaming, I’m always on the lookout for the next big upgrade that can sharpen my aim, improve my reaction times, and elevate my gaming experience. So when Razer announced the successor to the DeathAdder V3 Pro, the DeathAdder V4 Pro, after nearly three years, I was immediately intrigued, as I had previously spent some time with the DeathAdder V3 Pro beforehand. When Razer promised upgrades in performance and even comfort, the latest iteration seemed poised to raise the bar in what a gamer should look for in a gaming mouse. After spending just shy of two weeks with the new DeathAdder, I can confidently say that Razer has delivered yet another hit gaming mouse.
A familiar shape
The mouse comes with a simple instruction manual and grip tape.
Right out of the box, the DeathAdder V4 Pro includes a braided USB-C charging cable, pre-cut grip tape, and most notably, Razer’s newly redesigned 8K polling rate dongle. The inclusion of the dongle is rather noteworthy, as it was previously sold separately with the DeathAdder V3 Pro. So seeing it bundled here is a nice step toward enabling gamers with the mouse’s full performance capabilities without needing to make an additional purchase. Besides that, the included USB-C cable is decently long (about 1m), and the inclusion of grip tape is a nice touch too, especially for those who want an extra level of control during gameplay.
Visually, the DeathAdder V4 Pro is understated as the range continues to step away from Razer’s usual Chroma RGB aesthetic. It keeps the familiar ergonomic shape that the DeathAdder line is known for, with a matte black (there’s also a white version) finish and a subtle black-on-black Razer logo on the hump. As someone who’s used the previous DeathAdder models, the shape felt immediately familiar and natural in my hand. I had no issues finding a comfortable hold when switching between claw and palm grips, even with my slightly larger-than-average hands.
Even though the mouse is physically larger than many other ultralight mice, like the G Pro Superlight, it still weighs just 56g. That balance of size and lightness really stood out, giving it a solid, reliable feel without weighing me down during long gaming sessions.
What’s inside the new DeathAdder V4 Pro
Larger PTFE feet compared to its predecessor.
In terms of raw performance, the DeathAdder V4 Pro is cutting-edge. If you haven’t already read about it from our news article, it uses Razer’s brand-new Focus Pro 45K optical sensor, which is capable of tracking at up to 45,000 DPI with a maximum tracking speed of 900 inches per second and 85G acceleration.
While few will ever use the upper end of that spectrum, having the additional headroom can offer increased accuracy and tracking consistency for those who play at lower sensitivity settings. Combined with Razer’s fourth-generation optical switches, which are rated for 100 million clicks, the overall experience is snappy and responsive. Clicks are fast, clean, and entirely free from debounce delay. One thing I did notice when switching from my Superlight mouse to the D4V4 is that the clicks have a noticeably hollow sound profile. It’s not a major flaw, but if you’re sensitive to sound or prefer a quieter mouse, it’s something to take note of.
Adding on to the slew of improvements, Razer has introduced a new optical scroll wheel in this model, improving both durability and performance. By eliminating physical contact points, the scroll wheel offers more precise actuation, completely avoiding ghost inputs or accidental reversals. Whether I was scrolling through long articles or cycling through weapons in-game, the movement was smooth and accurate, with just the right amount of tactile feedback.
Complementing the new sensor and scroll wheel is an upgraded wireless setup that completes the DeathAdder V4 Pro’s upgrade package. Razer has replaced the older trapezoid-shaped dongle with a newly redesigned, dome-shaped 8,000Hz polling dongle. Weighted for stability, the dongle sits neatly on the desk and adds a touch of functionality with three integrated LED indicators that display signal strength, battery level, and current polling rate. The 8,000Hz polling rate is among the highest available on any gaming mouse today, reducing latency to a claimed 0.29ms. While casual gamers may not notice a large difference beyond a 1,000Hz polling rate, competitive players chasing peak performance will appreciate the enhanced responsiveness and input consistency.
Does it make you a better gamer?
The mouse is large enough, even for those with big hands.
After around two weeks of testing the new DeathAdder V4 Pro, I began to notice clear improvements in my gameplay. Whilst mostly switching between Valorant and Counter-Strike, the mouse felt like a natural extension of my hand, even though I am left-handed and usually find right-handed ergonomic mice less comfortable. Despite this, the design worked well for me. Movements felt smooth and responsive, especially when using the mouse at an 8,000Hz polling rate. My aim tracking remained accurate throughout, and as I gradually lowered my sensitivity, the larger PTFE feet provided consistent glide across different mouse pads. I tested the mouse on various surfaces, including a glass pad, and it performed reliably without any issues.
Battery performance is equally impressive. According to Razer, the mouse can last up to 150 hours when set to 1,000Hz and around 22 hours when running at 8,000Hz. In my experience, which involved frequent and extensive gaming over the course of a week, the battery dropped to only 64% while set to 1000Hz polling rate. When set to 8,000Hz, the mouse lasted just shy of a full 24 hours before running out of juice mid-game. One thing to note is that although the DeathAdder V4 Pro does not support wireless charging or include a charging dock, a quick five-minute charge gave me enough charge to continue using it for about 45 minutes, which is usually enough to finish whatever I was doing.
For those who want to further optimise battery life, the Razer Synapse software includes a feature called the Smart Polling Rate Switcher. This feature automatically adjusts the polling rate based on the level of activity on your system. This should help to conserve battery when the system is idle, while automatically switching to a higher polling rate during gameplay.
Other features of the DeathAdder V4 Pro
Finally, customisation through the Razer Synapse software completes the overall experience. Like its predecessor, the DeathAdder V4 Pro supports five-step DPI adjustment, polling rate configuration, and button remapping through Razer’s “Hypershift”.
The D4V4 Pro features onboard memory that automatically stores and utilises the last used Razer Synapse profile.
Users can also create custom power-saving profiles and tailor the mouse’s performance to suit different applications. Besides that, there is also the Dynamic Sensitivity feature, which automatically adjusts the DPI based on how quickly you move the mouse. This feature is particularly useful when playing FPS games, as both precision aiming and rapid turns are needed within a match.
Does this make it the ultimate gaming mouse?
The DeathAdder V4 Pro has a more centrally raised palm rest compared to the Logitech G Pro Superlight.
For gamers like myself who want a high-performance mouse that enhances gameplay without overcomplicating things, the DeathAdder V4 Pro is a compelling choice. While alternatives like the Lamzu Maya with its 8,000Hz polling rate or the Finalmouse Ultralight X with its ultra-light 31g build offer impressive specs in specific areas, Razer delivers a well-rounded package. Overall, the DeathAdder V4 Pro offers a combination of comfort, precision, and reliable wireless performance in a proven ergonomic form factor that feels instantly familiar.
Yes, it forgoes features like RGB lighting and Bluetooth connectivity, but these omissions don’t feel like drawbacks. Razer has clearly prioritised performance above all else, and it shows. With its upgraded sensor, 8K polling support included out of the box, excellent battery life, and seamless customisation via Synapse, the DeathAdder V4 Pro is a good choice for gamers like you and me.
That said, the S$259 price tag places it in direct competition with other top-tier mice like the Logitech G Pro X Superlight 2. Whether the DeathAdder V4 Pro is worth the premium depends on how much you value its iconic shape and esports-focused refinements. If you’re already a DeathAdder V3 Pro user, the upgrade to the V4 Pro is an easy recommendation.
Availability and pricing
The Razer DeathAdder V4 Pro is available for purchase for S$259 from the official Razer Store and its official storefronts on Lazada and Shopee. It is also available at Amazon. The mouse is available in Black or White.