verdict
With so much lower weight, fiery new wireless technology, clickier switches and many other tweaks and improvements, the Razer Deathadder V4 Pro is enough to win the title of Best Ergonomic Gaming Mouse. However, the improvement is subtle and a very expensive mouse.
- Class-leading sensors and wireless performance
- Great battery life
- Refined design
- Very light
- Ergonomics has been improved slightly
- Very expensive
- Relatively few features
- Annoyed power button
- Very big switch
The Razer Deathadder is one of the longest-running and bestselling gaming mice in the world. Over the decades, mouse focus has varied to match the game’s trends. This latest version, Deathader V4 Pro DeathaderIt is an ultra-lightweight wireless mouse focused on highly competitive gaming. But one thing that hasn’t changed much throughout that time is the shape of this mouse, which, along with some tweaks, retains the much-loved, trialled, trusted, curved, ergonomic shape.
As a regular participant in our Best Gaming Mouse Guide for many years, this latest version is high hopes, but Razer has slapped prices more than ever with this mouse, but still needs to prove it while keeping the physical feature list quite short. For the past few weeks, I’ve been using it as my main mouse for work and play and see how it really can withstand it even if it offers comfort in a day of work, or if there are too many rounds of CS2 or even in the evening final.
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specification
Razer DeathAdder V4 Pro Specification | |
sensor | Focus Pro 45K Optical Sensor Gen-2 Optical |
button | 5 on top, 1 on bottom |
switch | Razer optical mouse switch Gen-4 |
DPI | 50-45,000 |
Weight | 55g |
connection | Razer Hyperspeed Wireless Gen-2, Wired |
Polling rate | Up to 8kHz |
battery | Up to 150 hours at 1kHz Up to 22 hours at 8kHz |
extra | USB-C Dongle, USB-A to USB-C Cable (6.5ft/2M) |
price | $169.99 /€179.99 /£169.99 |
Features
Razer has made the new DeathAdder V4 Pro lighter and user-friendly with the latest sensors and wireless technology to make the mouse design lighter and more user-friendly than ever. However, in terms of raw physical features, it is a very basic mouse.
There are five buttons at the top (left, right, scroll click, back, forward) and there are no DPI buttons on the top or other extras. This is a fairly common layout these days for esports-focused gaming mice, but Razer takes this formula a step further. Here, there are often several other buttons for fine-tuning mouse functions, such as the sliding power switch, DPI buttons, and for mice such as the Cherry Xtrfy MZ1. However, here there is only one button to save weight.
This isolated clicker provides power on and off when you hold the mouse down and is used to cycle DPI levels when tapped. This is a radically functional combination, seen in previous V3 Pro versions of this mouse, and we found it to be surprisingly exciting.
Simply moving the slide switch takes a significant amount of time to turn the mouse on or off. That makes it somewhat less regular to hold it, given that the mouse tends to want to leave your hand when you want to press and hold the button and turn it upside down. This didn’t just turn off the mouse, anything happened or change the DPI.
This scenario could have been somewhat mitigated if Razer added more prominent and persistent RGB lighting. Here, you get one LED on the front of the mouse and it lights up when you turn on the mouse, but it is hidden in the invisible top while turning on the mouse, and it turns off for a moment after powering it.
All this may sound trivial. It can be surprisingly frustrating, especially if you have a second mouse to use for work, or if you need to travel with the setup, especially if you feel you rarely get the mouse off or go back. For a mouse that is as expensive as this, it leaves me a little.
Elsewhere on the front of the feature, this mouse includes a USB-C port on the front that can be used to charge the internal battery when continuing to play gaming with a wired connection to the PC.
If you are not using a wired connection, the DeathAdder V4 Pro takes advantage of the new wireless dongle, perhaps the most notable feature of this mouse. Instead of traditional USB-a dongles that can be connected directly to a PC, Razer has created a new dongle in a relatively large, weighted desktop pack that connects the lightweight braided cables of the mouse. This makes it not convenient to use on your laptop – it prevents the dongle from being easily knocked around your desk, whether you’re using one of the best gaming laptop options from the guide.
The dongle is a high-end type that can provide a polling rate of 8kHz, and because these devices tend to be bulkier than traditional mouse dongles, Razer also chose to take this route. In recent years, we have seen quite a few mice offer large 8kHz dongles as optional extras, but here the Razer has completely eliminated the smaller, more basic 1kHz option.
Not only is the high peak polling rate, dongles and mice use Razer’s new HyperSpeed Wireless Gen-2 connection. Razer delivers twice the bandwidth of previous connected systems, providing an average latency of 0.291ms. According to Razer, this is almost half the latency (8kHz) of Razer’s Gen-1 Hyperspeed Tech (8kHz), almost a quarter of the latency of other 8kHz wireless technologies.
On the front of the dongle there are three lights that show the mouse connection strength, battery level, and polling rate (you can choose to run at up to 8,000Hz at 125Hz. These all glow green when everything is going well. Alternatively, you’ll get the max turnout and fall to yellow, orange, and red when these numbers drop. You can also change the software assignments, show one DPI level or turn it off.
It’s for external physical features, but inside the mouse there is more advancement. The company’s latest Focus Pro 45K sensor (yes, it could be 45,000 DPI) can be tracked with 85g of hand acceleration, up to 900 inches.
The new switch can claim a 100m click life span, and Razer has created a more clicky sound intentionally than its previous models. This will unfold later. According to Razer, the scroll wheels last 3.3 times longer than the mechanical scroll wheels. I’ve had a few mice suffering from wheel failures recently (after years of service), so I can prove that this could be a valuable upgrade.
Software and Mouse Setup
Razer Synapse returns to manage this mouse’s functionality. Easily customize all buttons to set up high shift assignments. Here, when the high shift button is pressed, the button performs a different function. You can assign a high shift button to one of the mouse buttons, but considering there are no few, you probably don’t want to do this. However, annoyingly, unless you have a Razer keyboard, you cannot assign HyperShift to a regular keyboard combination.
In the Performance section, you can assign up to five different DPI levels, choose to kick in high polling rates only when the game is running in full screen mode, and use the sensitivity matcher to adjust the sensitivity of your V4 Pro to match the feel of another mouse.
Meanwhile, the Power section allows you to choose between sleep duration (1-15 minutes) and low power mode. The Calibration section allows you to adjust your mouse to a specific mousepad surface, but also allows you to set up dynamic sensitivity at a high level. This is where the sensitivity of the mouse changes depending on the speed of movement.
Elsewhere in the software you can download Chroma apps for assigning different profiles to different games, recording macros, and managing RGB lighting on other Razer hardware. One light on this mouse does not work with Chroma.
Overall, this is a comprehensive choice, making it easy and intuitive to set up your mouse with your preferred performance for different situations. Automatic profile toggle when a particular game is launched is a particularly neat feature, despite the fact that we finally found that all games use the same settings.
Design and comfort
A critical aspect of the Razer DeathAdder mouse is its shape. It unfolds an asymmetric, slightly sloping shape widely considered in palm grip styles, where the entire palm is draped onto the mouse but also works with other grip styles.
Compared to symmetrical mice such as the Razer Viper, or particularly small fingertip grip-focused mice such as the Xtrfy MZ1, larger, curved shape Deathdar supports the palm and does not require twisting the pre-knit up to the mouse shape. This large shape doesn’t allow for the freedom to move under the hand as much as other designs, but it slightly limits the appeal of fingertip grips.
The core of the design hasn’t changed for years, but Razer has been tweaking forever, and this latest version packs some changes from the previous version. These include a significant reduction in weight between 64g and 56g, although the mouse weight distribution has also been fine-tuned. I was unable to get a V3 Pro during the test, so I was able to compare them directly, but for a relatively large mouse like this it is certainly impressive that the weight is low, and the balance of the mouse also feels good.
Razer has reinforced the sidewalls of the mouse a little to give it a stiffer feel and reduces creaks from the flexible plastic. The side buttons have also been fine-tuned, adding a noticeable gap, making it easier to distinguish between them while placing the thumb in the center.
The scroll wheel notch is a little more defined, and perhaps the most notable change is that Razer has increased the sound and feel clicked with the main left and right buttons. Razer said he consulted with pro gamers when designing this tweak, and their feedback showed he wanted a more prominent click and the boy was delivering Razer.
There are clicks with lower tones that are clearly larger than the dozens of other mice I have to hold on, pressing the left or right button. Often there are high pitch metallic overtones as well. When you release the finger, there will be a matching chunk when the switch returns to position. The mouse is very hollow and you can really feel it’s a little bigger than some people.
Moreover, especially with the right button, when you click and release the button, if you lift your finger up completely, it has almost a bell-like quality to click. It’s like holding a vase on the base and tapping it to create a clean tone and holding it in the middle to moisten the sound. This button really rings.
One final adjustment is that the Razer has enhanced the glide pad/feet below the mouse. The V3 Pro has three very small main pads, but here there are two much larger pads, and a small pad surrounding the sensor.
The overall effect of all these changes is, first and foremost, a mouse that feels impressively agile, especially considering its slightly larger shape than the ultra-lightweight design. Its balance is excellent, it slips easily and certainly knows when you click the button.
However, as a fingertip grip gamer, I don’t feel that this mouse shape benefits the game compared to things like the G Pro X Superlight 2, MZ1, or other slightly lower symmetrical designs that allow the mouse to move under your hands. However, of course, mileage may vary.
What I noticed is that due to the grip style of the palm and nails, I am actually a little unconvinced with this type of shape. In particular, the left posterior part of the mouse is merely in conflict with the way the mouse is held. The way this area protrudes means it interferes with the flesh part at the base of my thumb. I have the same problem as the Logitech G Pro X Superlight 2 Dex.
In contrast, ergonomic mice such as the Logitech MX Master and the G502 X Plus have shapes that go even further behind. This fits far more natural in my hand when used in a palm grip style style. As a result, when held at a 20-degree counterclockwise angle, the DeathAdder V4 Pro is the most comfortable to use.
It is also worth noting that if you have a slightly larger hand like me, you can be shy, 20cm or 8 inches, from the base of your wrist to the tip of your middle finger, using this mouse palm grip. A minimum of 1 inch shorter hands are required to comfortably reach the scroll wheel with a full palm grip.
performance
This mouse’s incredibly capable sensors and lightning wireless technology combine to effectively produce perfect performance. This is a feeling that applies to most of the high-end gaming mice of the past few years, and while the sensors and wireless technology are very good now, the 8K wireless polling rate in particular allows for a slightly smoother feel in gaming with very high frame rates. If you’re used to playing CS2, Valorant, or Finals above 240Hz, you may be able to identify faster update rates for this mouse than mice below 1kHz.
More influential are the subtle tweaks of the buttons and scroll wheel. Aside from loud clicks, the main button feels very balanced between requiring a strong press to be active. So, you won’t accidentally click, but you don’t feel like it requires too much effort. Scroll wheel buttons are easily activated without knocking on the wheel – not for example, with the G Pro X Superlight 2 Dex – the newly isolated side buttons help to maintain a truly solid, central grip.
Battery life
The Razer has increased the battery life of the Deathadder V4 Pro by 50% compared to its predecessor, boasting a 150-hour life with a 1kHz polling rate. It also has an increased lifespan at 8kHz, which travels only 20 to 22 hours.
In reality, this means that in peak level games you need to charge this mouse every two or three sessions, but if there are few sessions running below 1kHz it will last a week comfortably between charges. I only charged my mouse once with two weeks of use all day (mainly working at 1kHz and gaming for a few hours per week at 8kHz).
price
The Razer DeathAdder V4 Pro costs $169.99, making it a very expensive gaming mouse despite its modest overall feature set. However, this price remains almost competitive with other top tier options from competing brands, such as the Logitech G Pro X Superlight 2.
Alternatives
Logitech G Pro X Superlight 2 Review (Non Dex). “data-logo =” https://www./wp-content/sites/pcgamesnn/2025/09/logitech-pro-x-superlight-2-dex-affiliate.jpg data-affprice = “” data-affctatext = “view deal-logitech g pro x superlight 2” $179.89-amazon “affmessage =”Network n Media wins affiliate committees from Qualification Sales
Logitech G Pro X Superlight 2 Review (Non Dex). “data-logo=”https://www./wp-content/sites/pcgamesnn/2025/09/logitech-pro-x-superlight-2-dex-affiliate.jpg data-abfprice=”” data-affctatext=”£107.09-amazon” data-afflink=”https://www.amazon.co.uk/gp/offer-listing/b07wjkp66/ref=dp_olp_all_all_al_mbc? data-affmessage=”Network n Media wins affiliate committees from qualified sales
Razer Viper V3 Pro review. “data-logo =” https://www./wp-content/sites/pcgamesnn/2025/09/razer-viper-v3-pro-affiliate.jpg “data-gamename =” “data-affmerchant =” “data-affprice =” “data-affprice =” “$ 159.97 Amazon “data-afflink =” https://www.amazon.com/gp/offer-listing/b0cw25xr5r/ref = dp_olp_all_mbc?ie=utf8&condition=all&tag=pcgamesn-20 “data negian data-widget-type = “star”>
Razer Viper V3 Pro review. “data-logo =” https://www./wp-content/sites/pcgamesnn/2025/09/razer-viper-v3-pro-affiliate.jpg “data-gamename =” “data-affmerchant =” “data-affprice =” “Data-affprice =” “data-affprice Amazon “data-afflink =” https://www.amazon.co.uk/dp/b0cspn2g5z/ref=op-opf-opf-odir?aod=1&ie = utf8&condition data-widget-type = “star”>
verdict
The Razer DeathAdder V4 Pro is undoubtedly the best ultra-lightweight, ergonomic wireless gaming mouse on the market today. With the combination of trialled reliable shape, extremely low weight, modern sensor and wireless technology, and subtle design tweaks enough to improve ease of use on the V3 Pro, if you like this style of mouse, you’ll want the ultimate gaming performance of a first-person shooter, especially.
Compared to its biggest rival, the Logitech G Pro X Superlight 2 Dex, the V4 Pro is lighter, faster polling, with an inspiring switch, a much better scroll wheel, and even more capable sensors. The real-world differences between all these factors are relatively small, but of the two, unless I already own or want to buy it, it’s what I buy.
Otherwise, I would not deny that the value here is questionable for many gamers. For $170, it’s a very expensive mouse with relatively few features. Logitech is almost as expensive, but there are many other brands with more affordable options, even if they don’t pack the latest technology at all.
Check out our best gaming keyboard and the best gaming mouse pad guide for information on what your keyboard or mouse mat is best to pair with your mouse’s choice.