Quick note: Some links are affiliate links. We earn a tiny commission if you buy (at no cost to you). Keeps the lights on!
Sort: NewestMost helpful
Upgrading from a 14-year-old DeathAdder, tried the DeathAdder V4 first but its slick coating bothered them once hands got warm; the Viper V4 Pro's shape took a little getting used to, solved the sticking, and they are very happy with its crisp, low-latency clicks.
“I picked one of these up recently and I'm very happy with it. But grain of salt, this is my first new mouse in a LONG time.”
A week in after moving from a hand-me-down Finalmouse Air58, and really enjoying the upgrade.
“i got this mouse last week. I had a hand me down final mouse air 58 I'm really enjoying the upgrade”
After seven mice trying to beat the Viper V3 Pro, they find the Viper V4 Pro perfection.
Their Viper V4 Pro creaks in a few spots, mostly at the front, occasionally during normal use despite reviews claiming zero creak.
With small hands and a claw grip they found the Viper V4 Pro too large and moved to smaller mice.
Their new Viper V4 Pro's skates are cut too sharp, especially on vertical movements; they are going through an RMA.
“just got my viper v4 pro a few days ago and im experiencing the same problem, it feels like the skates are cut just a bit too sharp rather than rounded off”
Their new Viper V4 Pro's skates feel scratchy and sharp, add resistance and leave scrape marks on their pad, unlike their V3 Pro.
Upgraded from a Viper Ultimate to the Viper V4 Pro and calls it possibly the best mouse they have used, with excellent battery life and no bloated software.
“I upgraded from the viper ultimate to the viper v4 pro and I don't regret it at all. It is quite possibly the best mouse I have ever used.”
Coming from a Superlight 2, they found the Viper V4 Pro 10g lighter with an excellent coating but very loud clicks, and its shape tired their palm in relaxed claw; a battery worry turned out to be a web-driver reading bug.
“When using viper at relaxed claw the first 10 mins is comfortable but after that i will have to stretch my hands once every 5 mins, as it tires up my palm muscle.”
Having used most high-end mice, they call the Viper V4 Pro flawless apart from click noise, and say it feels far better made than the Superstrike they are selling.
“I have never seen a mouse with no flaws like this one. Battery perfect, sensor perfect, clicks perfect (sound is bad but who cares i dont hear it), flawless scrollwheel.”
Calls the Viper V4 Pro their endgame mouse: amazing battery life, extremely light, and the first mouse whose grip didn't need grip tape.
On their new Viper V4 Pro the lift-off distance felt far too high even on the low setting, still tracking while hovered above the pad.
Their new Viper V4 Pro has uneven main-button heights, with the right click slightly depressed, and a friend's unit had the same issue on the other side.
Coming from a Superlight and Viper Ultimate, they love the Viper V4 Pro's 49g weight, shape and web-based driver; 8K polling caused frame dips in Valorant and the clicks are deep but don't bother them.
“The shape is awesome. I like it a lot better than the Ultimate and Superlight. It just fits my hand right. I have largish hands.”
After a week the left button on their Viper V4 Pro began to wobble and make an extra clicking noise unless pressed straight down, which disappointed them given its price and reputation.
Their Viper V4 Pro's tracking feels subtly inconsistent, with sensitivity seeming to vary between movements, something they don't feel on their other mouse.
Their first Viper V4 Pro unit kept disconnecting and the replacement stuttered and froze often on their glass pad, so they returned it.
The Viper V4 Pro's sensor feels filtered to them, and they consistently score lower in aim trainers than on any other mouse they own, including the Viper V3 Pro.
After a week using the Viper V4 Pro exclusively, they still felt snappier and more confident on their Superlight 2 and stayed with it.
Coming from the Superstrike X2, they found the Viper V4 Pro strikingly light with rear-biased weight balance they love, though the shell feels hollow and sometimes cheap.
They prefer the Viper V4 Pro to the Superlight 2 in shape, weight, build, clicks and feet, but its front flare under the ring finger hurts their micro-adjustments.
Returned their Viper V4 Pro because the unit creaked whenever they relaxed their claw grip, though they found flicking much better and liked the weight and coating.
Moving from a mid-range Genesis mouse, their reaction times dropped noticeably on the Viper V4 Pro and they love how weightless it feels, though the battery reading not dropping at all looked odd.
They find the Viper V4 Pro's FrameSync feature remarkably smooth, wired or wireless, and say it is the first mouse that makes dragging a window feel real compared with their previous sensors.
A collector of 50+ mice now mains the Viper V4 Pro, calling it extremely responsive and accurate, with the light, low-feedback (though fast) clicks as its only weak point.
After a month and 30 hours at 4K polling the Viper V4 Pro still had about 70% battery; they praise its tracking, main switches, scroll wheel, side buttons and white coating and rate it worth the price.
“Hi there, im only having Viper V4 Pro for one month, and currently clocking 30hrs of usage in 4K polling rate. Now the battery percentage is 70ish percent (from full charge).”
Has used the Viper V4 Pro for a while with no issues and loves the long battery life since they rarely use 8000Hz polling.
Returned the Viper V4 Pro because its main clicks were too loud and stiff and the feet felt scratchy.
Among the many mice they own, the Viper V4 has by far the best battery, nearly double the Superlight 2, while the Superstrike's is much worse.
Prefers the Viper V4 Pro over the Superstrike for its better weight balance, solid build feel and much better battery life, and scores faster in reaction tests with it.
Returned the Superstrike after a week and bought the Viper V4 Pro, which they plan to keep for good.
Moved from the Maya X to the Viper V4 Pro, which feels much more stable in their big hands and has already improved their Kovaak's scores.
Loved the Viper V4 Pro but its hump hurt their wrist when palm-gripping with large hands, and they found the stock skates poor; they now mainly use a Maya X.
Found the Viper V4 Pro's shape, balance, weight, battery and coating perfect, but the click sound was so bad it made the mouse unusable for them.
Owns both and says the Viper V4 Pro beats the Superstrike in everything; the Superstrike's clicks are not worth switching for.
After twenty minutes with the Viper V4 Pro they handed their Superlight 2 over to their wife for good.
Hates how loud the Viper V4 Pro's clicks are, being very noise-sensitive, but still prefers it overall to the Superstrike.
Gave up on the Viper V4 Pro after 41 days because the sensor felt weird, ranking it among the worst of 50+ mice they've owned.
Their accuracy dropped noticeably after moving to the Viper V4 Pro from a Maya X and GPX, struggling to track and micro-adjust with it.
Loves how the Viper V4 Pro feels in Valorant but finds its click noise so loud it interferes with their microphone.
Finds the Viper V4 Pro very comfortable to hold and move and actually enjoys the feedback from its loud clicks.
Their Viper V4 Pro occasionally stops tracking on a glass SP-005 pad; adjusting the lift-off settings helped only partly.
Used the Viper V4 Pro for a month: excellent claw-grip shape, well-placed tight side buttons and a much improved optical scroll wheel, but minor issues like the scroll click made them move on.
Their first Viper V4 Pro's stock skates felt scratchy, but an exchanged unit glided far better; the click noise still bothers them.
After 10+ days coming from a G305, they find the Viper V4 Pro's light weight life-changing for flicks, love the shape and web software, and needed only one charge at 2K/4K polling.
Returned the Viper V4 Pro because the shape didn't suit them and they prefer the GPX shape.
A side button on their Viper V4 Pro began creaking after a week, and they regret buying it over the Viper V3 Pro.
With 19.5cm hands and a claw grip they find the Viper V4 Pro's hump position uncomfortable, with no stopping power in games.
After Logitech mice that developed double-clicking, their Viper V4 Pro, like the V2 Pro before it, just works; they call it a good, plain mouse.
“i had many logitech mice and it just kept disappointing me. clicks start to double click after 1 or 2 years or similar problems. now viper v4 pro is my 2nd razer mouse and it just works.”
With about thirty mice tried, they find the Viper V4 Pro's shape amazing for their claw grip and its coating probably the best they have felt; they would pick it over the heavier Superstrike.
“Something about the shape of the V4 is also amazing to my grip, which is claw. It does also have probably the best coating I have ever felt in a mouse.”
The Viper V4 Pro's flared rear hurt their ring finger and they couldn't find a comfortable grip.
“Yeah i had the same issue with the viper v4 pro, it was hurting my ring finger. I couldn’t find a comfortable way to grip because of the flare.”
Happy with the Viper V4 Pro, whose coating lets them use it bare; only wishes it were slightly smaller.
“Am happy with my Viper V4 Pro. Only thing I'd ask from it is to be a tad bit smaller, Viper mini, but that's a nitpick to me as everything else is perfect for me.”
Compares the Viper V4 Pro with their X2 Superstrike: the Viper has better weight and balance, coating, skates and side buttons, while the Superstrike's click feel is its standout.
“The viper V4 has better weight/weight balance, better coating (Razers soft touch coating is one of the best out there i feel), probably better shape if you use more claw based grip styles, better skates, better side buttons”
Bought the Viper V4 Pro out of curiosity and found its main clicks the loudest they have heard, a deal-breaker with open-back headphones or shared spaces.
“These are the loudest main buttons I've ever heard. If you live with someone else, have an apartment with thin walls or use open-back headphones, do NOT get this mouse.”
Their black Viper V4 Pro creaks at the front sides when squeezed, but everything else is solid.
“my Viper V4 Pro Black has some creaking in the front sides near the clicks when squeezed even with mid pressure :( Everything else was solid tho!”
After the X2 Superstrike, finds the Viper V4 Pro much better for their shape and weight-distribution preferences.
“i had the superstrike and vv4 pro Is so much better for me in terms of shape and weight distribution.”
After Superlights, a G303 and a Viper V3 Pro, the Viper V4 Pro is their favourite mouse; its frame sync is noticeable.
“I recently got the viper v4 pro and I can say with a 100 percent confidence that it's my favorite mouse. The new implementation of frame sync is awesome and truly noticeable.”
After returning the X2 Superstrike, switched to the Viper V4 Pro and finds it on another level, perfect for tactical shooters.
“Now i´m using the V4 Pro and i have to say it´s on another level, it´s perfect.”
Owns the Viper V4 Pro and likes its clicks more than most; they are louder than average but inaudible through headphones.
“I have a viper v4 pro and don’t mind the clicks in the slightest. I actually like them more than most. They’re louder than average but it’s not like you hear them through headphones”
In League of Legends some Viper V4 Pro clicks didn't register for them, though Valorant was fine. It feels very light but almost plasticky, with a less grippy coating, and they prefer the V3 Pro.
“When testing v4 on league as an adc with full attack speed, some clicks literally don’t register, not sure if this is cause I’m used to superstrike now.”
Owns the Viper V4 Pro and X2 Superstrike and finds the Viper the better mouse: lighter, double the battery life, better feet and a trouble-free scroll wheel, while their Superstrike's wheel has had issues since day one.
“I have both and I agree with the statement that the Viper V4 Pro is overall the better mouse. It's lighter, double the battery life, arguably better feet, scroll wheel has no issues.”
Replaced a worn-out Superlight with the Viper V4 Pro, which feels similar but slightly smaller at the back and lighter; happy overall, though it costs more than a Superlight 2.
“Went with Razer Viper V4 Pro, kinda similar (a bit smaller at the back), lighter and overall happy with it. But it's more expensive than Superlight 2.”
After almost two weeks, the Viper V4 Pro has the best balance, side buttons, scroll wheel, coating and battery life they have had, and it's the first mouse whose stock skates they kept. The clicks sound terrible but feel good, and it will likely be their main for a long time.
“This mouse has the best weight balance, side buttons, scroll wheel, coating, & battery life I've ever had in a mouse. It also has the worst sounding clicks I've ever heard”
Considering returning their Viper V4 Pro because they can't get past its extremely loud clicks, and they miss the GPX shape.
“literally thinking of returning my viper pro v4 and try the superstrike.... the nuclear bombs of clicks in the viper i just can't get past... i also miss the gpx shape a bit.”
First impressions of the Viper V4 Pro next to a GPW and U2-DW: very light, nicely defined, spammable main clicks that are less mushy than the V3's, and a quieter, more premium scroll wheel, but by far the loudest, hollow and pingy clicks they've had.
“The main trigger are nicely defined. Defently on the more clicky side. Not that mushy like the V3.”
Returned the Viper V4 Pro after two days: the quality didn't justify the price, the clicks were very loud, and it felt like a big block of plastic.
“I had it for 2 days and sent it back, mainly because overall it didnt felt like the quality related to the price is valid”
A self-confessed mouse addict who has owned most major brands calls the Viper V4 Pro their favourite: great weight that's easy to reposition, a great shape, a well-weighted scroll wheel and the best battery life they've had.
“The razor viper V4 is my favorite out of all of those mice that I’ve used.”
Owns the Viper V4 Pro and the Superstrike and definitely recommends the V4 Pro: the clicks are loud, but the weight balance and quality control are among the best they've had.
“V4 pro is a definite recommendation. I’d happily move to the v4 pro. Clicks are loud and not my favorite, but everything else is so good.”
After five years on the Superlight 1, the Viper V4 Pro's grip felt so different they can't play with it.
“I bought the viper v4 pro and let me tell u its way different than u imagine. The grip is different and I can’t play with it”
Their recent Viper V4 Pro has a left click sitting lower than the right, which is quite annoying.
“I got the v4 pro recently but it’s left click is lower and it’s quite annoying”
As a fingertip-grip user, moving from the Viper V3 Pro and X2 CrazyLight to the Viper V4 Pro feels unreal.
“switching from viper v3 pro to pulsar crazylight x2 to viper v4 pro feels unreal as a fingertips grip user”
A CS2 player (19x10cm, relaxed claw) finds the Viper V4 Pro's coating better than the V3 Pro's, the clicks the best optical switches they've used, the build solid and very light with perfect balance, and the sensor very responsive. A tiny right-click wobble; only worth buying if money is no object.
“clicks are tactile, light, defined. the best feeling optical switch i've used.”
The Viper V4 Pro performs great, but its plastic shell feels cheap and doesn't match the premium price, even without creaking or flex.
“Just got the Razer Viper V4 Pro, and while the performance is great, I'm a bit disappointed with the build quality.”
The Viper V4 Pro's switches sound like a claw-machine toy to them, perhaps because of the hollow body.
“for me its not the coating but the sound of the mouse.”
With small 16.5x8.5cm hands they were surprised how well they perform with the Viper V4 Pro's safe symmetrical shape. A premium-priced but complete package they'd recommend, if the Gen 4 switches suit you.
“it feels like the kind of mouse you buy once and you are most likely set.”
Just got the Viper V4 Pro; next to it the V3's clicks feel a bit mushy, though the V3 has less ping.
“Just got my V4 today and the V3 clicks now feel a bit mushy compared to the V4”
Sold their Superstrike for the Viper V4 Pro and is glad: no felt latency difference, and none of the Logitech's odd weighting or greasy texture.
“I got rid of the Superstrike for this and I'm so glad I did the Viper V4 is just such a better mouse.”
Returned the Viper V4 Pro the day after buying it; some movements in CS felt very inaccurate, so they got a GPX 2 for its steadier hump.
“I got the same mouse yesterday and changed it today”
Six months in they still main the Viper V4 Pro, but dust affecting the sensor and an occasionally sticking scroll wheel dropped it from 9/10 to 8/10.
“I still main the mouse and I don't think I will replace it any time soon, but if my initial impression was a 9/10, now it has gone down to an 8/10”
Their Viper V4 Pro has never had tracking issues or spin-outs, even on a frequently dusty glass pad.
“although I wipe it, there would be times I would forget but my V4 never had tracking issues or spin-outs”
Comparing with the Superlight 2, this owner prefers the Viper V4 Pro's shape, lighter weight, better coating and side buttons.
“I also prefer the Viper for its lighter weight, better coating, and better side buttons.”
This buyer in the Middle East picked up the Viper V4 Pro and it's been great so far.
“I picked up a Razer Viper V4 Pro and it’s been great so far.”
A user returned the Superstrike and kept the Viper V4 Pro for its unbeatable shape.
“Vv4pro is goated. I returned my superstrike (good mouse) but can’t beat the v4 shape.”
A Fortnite player finds the Viper V4 Pro better than the Superstrike: better side buttons, sensor and tactile scroll, though loud clicks.
“But the Viper V4 Pro def is better in every way.”
A user finds the Viper V4 Pro much better than the Superstrike: lighter, better skates and web software, slightly pingy clicks.
“With the V4 it feels noticeably lighter and has better skates.”
A user's Viper V4 Pro keeps randomly disconnecting from its dongle.
“My Viper V4 Pro keeps disconnecting from the dongle randomly”
A Valorant player praises the Viper V4 Pro's tracking, shape, weight and battery, but the scroll wheel sticks again.
“Great tracking, shape, weight, battery.”
Testing the Viper V4 Pro against the Superlight 2c, a player consistently scores better in Aim Labs with the Viper but plays better in games with the 2c.
“in aim labs I score better with the viper v4 pro, like consistently lol.”
A Faceit level 9 CS2 claw-gripper with 17.5x9 cm hands is refunding the Viper V4 Pro after a week because it's too large, returning to the OP1w 4K v2.
“I think the VV4 is a bit large for my hand.”
Comparing with the DeathAdder V4 Pro, a user picks the Viper V4 Pro for weight and as the better option for non-palm grips.
“I would have to say The Viper V4 PRO for the weight”
Coming from a 96 g Mamba Elite, a player finds the Viper V4 Pro incredible in hand with spectacular response at 8000 Hz; clicks are a bit loud.
“I was torn about whether to buy the Razer Viper V4 Pro, but I finally decided to go for it, and I couldn't be happier.”
Coming from the X2 Superstrike's quiet clicks, a user is returning the Viper V4 Pro after a week because its clicks are too loud.
“I have the Viper V4 for more than 1 week and I will return it.”
A longtime ergo-mouse user calls the Viper V4 Pro an amazing mouse but it gave them severe hand cramps after an hour.
“I bought the Viper v4 Pro thinking it would improve fatigue and confort but, instead, gave me severe hand cramps. Amazing mouse, but I just couldn't use for more than one hour per day.”
A player loved the Viper V4 Pro but found it too low-profile to support their grip, and moved to the Superstrike shape instead.
“I loved the viper V4 so much, but it was a bit too low profile and didn’t give me enough support for my grip style.”
Calls the Viper V4 Pro the best mouse available: no click wobble, lowest pretravel, tight side buttons, an unobtrusive optical wheel and the best balance they've tried.
“The Viper got non existent wobble or side play on the clicks with the lowest pretravel out of any mouse, tightest side buttons”
Owns both the X3 Superstrike and the Viper V4 Pro and prefers the Viper's shape and weight, especially for big hands.
“I have both the x3 Superstrike and viper v4 but prefer the shape and weight of the viper”
After 30 days with the Viper V4 Pro, its low profile felt less stable at first but now lets them move their crosshair faster and smoother.
“after using it for a week or so i find that the design is intentional and allows for crosshair or reticles to move horizontally faster and smoother.”
Moving from a wired Dark Core, the Viper V4 Pro is very good and far easier to flick, though it lacks a thumb rest.
“Overall its a very good mouse but I have to say, not that I really expected much difference in 6 years I guess but so far I cant even tell a difference between the two of them besides the weight”
Rates their previous Viper V4 Pro's side buttons 10/10.
“the side buttons are a 8/10 i think, comparing to my previous mouse the razer viper v4 pro which had 10/10 sise buttons imo.”
Their mouse has a bug where it needs both left and right click pressed to select anything.
“my mouse keeps doing both clicks.its not double clicking, i need to press right and left click to select”
With 21 cm hands and a claw-like grip, loves the Viper V4 Pro.
“my hand length is 21cm and I love the viper v3 pro and viper v4 pro.”
Tried it briefly; felt a bit too big with a front that flares out.
“the viper v4 pro (very briefly and I didn't test it properly in an aimtrainer, but to me it felt a bit too big, didn't like that the front flares out )”
Returned it because of the loud, annoying clicks.
“I had the Viper V4 Pro and returned it due to the loud annoying clicking.”
Its clicks sound better than the DeathAdder V4 Pro's and the Viper V3 Pro's.
“Viper V4 Pro sounds much better than the Deathadder V4 Pro. I would go so far as to say the Viper V4 Pro clicks are better than the V3 Pro.”
Feels lighter than the X3 but they dislike the coating.
“The thing I don't like about the V4 Pro is the coating.”
Just bought the Viper V4 Pro and has been loving it.
“I just bought the Viper V4 Pro and I've been loving it.”