The Razer DeathAdder V4 Pro is a lightweight wireless gaming mouse that continues Razer's longstanding DeathAdder lineup. It has the same right-handed ergonomic shape as the previous generation Razer DeathAdder V3 Pro, making it best suited for larger hands. The updates are mostly internal: It features a new MCU model, an updated sensor, optical switches for the main clicks, and an optical scroll wheel encoder designed to provide better long-term reliability than the mechanical encoders of past models. It's also slightly lighter than its predecessor. Finally, it ships with Razer's second-generation wireless dongle, which supports polling rates up to 8000Hz. Razer advertises this new dongle version as more stable with better signal strength, while also promising improved battery life.
Our Verdict
The Razer DeathAdder V4 Pro isn't designed for work. Despite this, it's still decently well-suited for it. It has a comfortable right-handed shape, though it's best suited for larger-sized hands. It also has excellent build quality. That said, it lacks productivity features like Bluetooth support for multi-device pairing, a scroll wheel with left-right tilt functions, and a free-scrolling mode.
Excellent build quality.
Scroll wheel lacks left-right inputs and a free-scrolling mode.
No Bluetooth support for multi-device pairing.
Only suitable for larger-sized hands.
The Razer DeathAdder V4 Pro is outstanding for playing FPS games. It's very lightweight for its size, making it easy to move around quickly and accurately. Its right-handed ergo shape is best-suited for a palm grip for larger-sized hands. Performance-wise, it supports a wired or wireless polling rate of 8000Hz and offers exceptionally low click and sensor latency, ideally suited for competitive play. That said, while the overall build quality is excellent, it suffers from some minor creaking if you tend to squeeze quite forcefully while gaming.
Exceptionally good sensor performance.
Outstanding click latency.
Impressively lightweight.
Excellent build quality.
Only suitable for larger-sized hands.
The DeathAdder V4 Pro is great for MMO and MOBA gaming. Build quality is excellent aside from minor flexibility and faint creaking if you press very hard on the shell. Its comfortable right-handed ergo shape and strong overall performance make it a reliable choice. However, its biggest drawback is the limited number of side buttons compared to dedicated MMO mice. You can work around this by relying more heavily on keyboard input or remapping buttons, creating macros, or even setting a Hypershift button to toggle a secondary input layer in the software.
Exceptionally good sensor performance.
Outstanding click latency.
Excellent build quality.
Only suitable for larger-sized hands.
Fewer additional buttons than dedicated MMO mice.
The DeathAdder V4 Pro has exceptionally good raw performance. It offers extremely low and consistent click latency and outstanding overall sensor performance, making it ideal for competitive gaming in any genre. It also supports a maximum polling rate of 8000Hz both in wired and wireless modes, which is noteworthy as many wireless 8k-capable mice only support 8k wireless.
Exceptionally good sensor performance.
Outstanding click latency.
Maximum wired and wireless polling rate of 8000Hz.
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Differences Between Sizes And Variants
The Razer DeathAdder V4 Pro is available in a Black or White colorway. We bought and tested a Black-colored model.
See a photo of our unit's label.
Popular Mouse Comparisons
The Razer DeathAdder V4 Pro continues Razer's longstanding DeathAdder line of right-handed ergonomic gaming mice. It keeps the small shape revisions introduced with the Razer DeathAdder V3 Pro but makes several incremental changes under the hood, including a new generation sensor, updated optical switches, a slightly lighter weight, a longer advertised battery life, and Razer's second-generation HyperPolling dongle with support for up to 8000Hz polling.
One of the most meaningful hardware changes is the adoption of an optical scroll wheel encoder and a full-size switch for the middle click. Previous DeathAdder models (and most mice in the industry) use smaller side-button-style switches for the mouse wheel click, which are typically less durable. We also expect the new optical encoder to be more durable than the mechanical encoders still used by most competitors. Since scroll wheels are a well-documented failure point in gaming mice, this change targets one of the most significant weaknesses in long-term reliability.
The DeathAdder V4 Pro is currently the leading 'ergo' option for competitive play. However, while the changes it makes from the DeathAdder V3 Pro are all improvements, they're iterative. Aside from its improved battery life and potentially more reliable scroll wheel, any measurable performance gains over much cheaper options simply aren't noticeable in-game. Budget models such as the MCHOSE L7 Ultra, upper mid-range models like the LAMZU THORN, and even established premium flagships, like the last-gen Razer DeathAdder V3 Pro, the Razer Viper V3 Pro, and the Logitech G PRO X SUPERLIGHT 2 DEX, deliver very similar performance at a lower cost.
For more recommendations, see our picks for the best mouse, the best gaming mouse, and the best wireless gaming mouse.
The Razer DeathAdder V4 Pro and the Razer DeathAdder V3 Pro are lightweight wireless gaming mice designed for competitive play. They share the same right-handed ergo shape, but the V4 Pro is lighter and offers a better-advertised battery life, an updated sensor, and an optical scroll wheel encoder that should improve long-term durability. The V4 Pro also includes an 8k-capable dongle in the box, while the V3 Pro supports 8k polling only with a separate purchase. Both feel comfortable for larger hands using a palm grip, but the V4 Pro's slightly wider side button spacing makes them easier to distinguish by feel. It also adds extra software features like Dynamic Sensitivity and Sensor Rotation, which the V3 lacks.
The Razer DeathAdder V4 Pro and the Logitech G PRO X SUPERLIGHT 2 DEX are both premium wireless gaming mice built for competitive play. They're about the same weight and share a right-handed ergo shape, but the Logitech feels more accommodating to a wider range of hand sizes and grip styles. Both deliver excellent performance and include 8k-capable wireless dongles. The Razer stands out with smoother-gliding feet and an optical scroll wheel encoder that should improve long-term durability compared to the Logitech's mechanical wheel. It also offers unique software features like Dynamic Sensitivity and a Sensor Rotation tool, which the Logitech lacks.
The Razer DeathAdder V4 Pro and the Razer DeathAdder V3 HyperSpeed are right-handed ergo wireless gaming mice from the same lineup. They share the same shape, but the V4 Pro is slightly larger and aimed more at competitive play. It shows small measurable improvements, though they don't translate into a noticeable difference in gameplay, and it features durability upgrades like an optical scroll wheel encoder and a full-size middle-click switch. The V3 HyperSpeed is a bit smaller, and while it also supports 8000Hz polling, you need to purchase Razer's HyperPolling Wireless Dongle separately to unlock that feature. By contrast, the V4 Pro includes an 8k-capable dongle in the box.
The Razer DeathAdder V4 Pro and the LAMZU THORN are both lightweight wireless gaming mice with right-handed ergo shapes. The Razer is a little larger and best suited for bigger hands, while the LAMZU's slightly slimmer and shorter body works well for both palm and claw grips. Performance is excellent on both, but Razer includes an 8k-capable dongle in the box, whereas you need to buy one separately for the LAMZU. Razer also equips smoother-gliding feet and an optical scroll encoder that should improve scroll wheel durability compared to LAMZU's standard mechanical encoder. In software, Razer offers extra software tools like Dynamic Sensitivity and Sensor Rotation, which the LAMZU lacks.
Test Results
There's an etched Razer logo on the palm area, and the body has a matte plastic finish that's noticeably smoother than the previous generation Razer DeathAdder V3 Pro. We discuss the coating more in the Build Quality section.
There's an RGB LED on the front section that indicates connection status when paired with the included Hyperpolling dongle.
We bought this mouse in Black, but it's also available in White.
The Razer DeathAdder V4 Pro has excellent overall build quality. All parts fit together cleanly, and it doesn't have any loose parts or make any rattling noises if you shake it.
On the older Razer DeathAdder V3 Pro, pressing the side panel could actuate the side buttons, but that issue isn't present on the V4 Pro. The older model also felt slightly more flexible, while this version feels sturdier despite being lighter. You can, however, hear faint creaking noises if you squeeze the shell on the unit we tested, which is disappointing for a flagship mouse.
The new optical switches feel similar to those on the previous generation, with distinct and satisfying tactility. However, they sound noticeably more resonant. Some may like the more pronounced feedback, while others may find it distracting. See the Noise section for more details.
The matte plastic coating has a smoother texture than the V3 Pro's finish. Community feedback has been positive so far, with most users noting that it provides a solid grip for both dry and sweaty hands without feeling too rough. That said, given its relative smoothness, this plastic finish may show more scratches and general wear over time.
The Razer DeathAdder V4 Pro is slightly lighter than the previous generation Razer DeathAdder V3 Pro.
The Razer DeathAdder V4 Pro has a comfortable right-handed shape designed specifically for a palm grip and best suited for larger hands, though it's also accommodating for a claw grip. Fingertip use is possible, but the design doesn't favor it, and most hand sizes will struggle to reach the side buttons with this grip.
It has a tall profile with a pronounced hump and shares the same shape as the previous Razer DeathAdder V3 Pro. The only noticeable difference with this new model is slightly more space between the side buttons. That older model made small adjustments to the classic DeathAdder design, including more subdued flared edges at the front, shallow comfort grooves on the main click buttons, and a hump shifted slightly inward on the palm rest toward the inside edge.
The Razer DeathAdder V4 Pro has a 306 mAh battery, the same capacity as the previous-generation Razer DeathAdder V3 Pro. Razer advertises up to 150 hours at a 1000Hz polling rate or up to 22 hours at 8000Hz. This represents a marginal increase for 8000Hz but a significant increase at 1000Hz compared to the V3 Pro, which was already among the best in the industry for advertised battery performance.
The Razer DeathAdder V4 Pro has a thick paracord-like cable that's quite flexible and lightweight for its size. It also retains virtually no kinks from its packaging.
The feet glide very smoothly on mousepads and desks with minimal friction. They also have rounded edges to reduce the likelihood of any digging or catching and have a noticeably larger surface area than the feet on the previous generation Razer DeathAdder V3 Pro, which can be a benefit on softer cloth pads or if you tend to press harder into your mousepad.
- HyperSpeed Wireless Gen-2 dongle
- USB-C to USB-A cable
- Adhesive rubberized side grips
- Sticker set
- User documentation
You can reassign all buttons on the Razer DeathAdder V4 Pro, including scroll up and down. The only button you can't reprogram is the one on the bottom, which powers the mouse on and off and cycles between CPI settings. In addition, one button must stay assigned as the primary click at all times.
You can also set a Hypershift button in the software, which lets you program a secondary layer of inputs.
The Razer DeathAdder V4 Pro has exceptionally low and very consistent click latency. It delivers an extremely responsive-feeling experience for gaming in any genre and is well-suited for casual or competitive play.
We conducted this test using the maximum polling rate of 8000Hz with all power saving modes disabled.
Razer DeathAdder V4 Pro reliably tracks your movements exceptionally well with virtually no speed variation.
The Razer DeathAdder V4 Pro has exceptionally good sensor latency performance. It's extremely well-suited for gaming in any genre, at any competitive level.
We conducted this test using the maximum wireless polling rate of 8000Hz, low power modes and Dynamic Sensitivity settings disabled, and Smart Tracking, lift-off, and landing distance at their lowest settings.
We also performed supplementary testing with an 8000Hz wired connection and 1000Hz wireless connection.
Available polling rate settings on the Razer DeathAdder V4 Pro are 125Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, and 8000Hz in both wired and wireless connectivity modes.
This mouse supports several novel, noteworthy features such as CPI matching, dynamic sensitivity, and sensor rotation. See the Configuration Software section for more details.
The Razer DeathAdder V4 Pro's scroll wheel feels soft, is fairly quiet, and has lightly defined steps. The middle click has a medium weight and crisp tactility, making the overall feel nearly identical to the previous Razer DeathAdder V3 Pro.
Razer is using an optical scroll wheel encoder as confirmed in their advertising material on their product page as well as a full-size microswitch for the middle mouse button as confirmed in this mel0onFPS YouTube teardown.
These changes are noteworthy as most mice in the wider industry, including the previous generation Razer DeathAdder models, typically use mechanical scroll wheel encoders and smaller side-button style middle mouse button switches.
Scroll wheel elements have been a frequent point of early failure for gaming mice in recent years, but we expect these new elements to provide better durability. If you own this mouse, let us know your experience with the scroll wheel encoder and middle click in the Comments.
The left- and right-click buttons produce a resonant, somewhat hollow sound. They don't quite pass the threshold to qualify as loud under our test methodology, but they are noticeably louder than the clicks on the previous Razer DeathAdder V3 Pro. Some users may appreciate the clear audio feedback, while others may find it distracting or even obnoxious. In contrast, the side buttons, scroll wheel, and middle click all operate much more quietly.
The software is well organized and easy to use, with the standard customization options you'd expect from gaming mouse software as well as some more unusual features.
Noteworthy features include the ability to configure the LED lights on the included dongle to display information like battery level, connection quality, and the current polling rate.
On the Performance tab, the Smart Polling Rate feature lets you designate different polling rates for desktop use and full-screen applications, automatically switching to a higher rate when gaming. In practice, though, some early community feedback suggests it may incorrectly trigger in non-gaming full-screen applications. A Sensitivity Matcher tool is also found on this tab. It allows you to align CPI levels between the DeathAdder V4 Pro and another mouse. This helps eliminate small CPI discrepancies so both mice feel consistent, reducing the need to re-learn muscle memory when switching devices.
On the Advanced tab, Dynamic Sensitivity lets you create custom acceleration curves that adjust CPI based on movement speed, similar to third-party tools like RawAccel. There's also a Rotation setting that virtually adjusts the sensor's orientation, so if you naturally hold your mouse at an angle, the software can compensate to make diagonal swipes translate into straighter horizontal movement.
That said, Razer's Synapse 4 software (much like the software from other manufacturers such as Logitech, SteelSeries, and ASUS) continues to receive criticism in the wider community for requiring disproportionate system resources, frequent updates, and needing to run in the background for some features to work correctly.