Razer Viper Ultimate Review

ProSettingsReview47 Comments

Razer Viper Ultimate Review


Over the course of the past few months we’ve seen a number of really exciting gaming mice being dropped on the market, and it seems like the race to innovate and push boundaries is fiercer now than ever before. A while ago Razer released the Viper: a well-received lightweight gaming mouse that perhaps went a bit unnoticed in a sea of other (lightweight) releases.

The same can’t be said for the Viper Ultimate, however. From the moment it was first leaked, enthusiasts started licking their lips at the possibility of a lightweight wireless gaming mouse to contend with the ever-popular Logitech G Pro Wireless. A short while ago the Razer Viper Ultimate was announced and subsequently released. With a brand new sensor, optical switches, a bunch of interesting features (including the fact that it’s wireless) and a weight of just 74 grams Razer definitely hasn’t been making any compromises, so it’s no surprise that a lot of gamers are giddy with excitement about this one.

Is the Viper Ultimate all that it promises to be? Could it be the ultimate gaming mouse? Read our reviewer’s report to find out.

“The wireless speed on this mouse is really fast and it doesn’t feel like I am playing on wireless. The sensor is very accurate too which is important when you need to kill your opponents fast.”Taco, CS:GO pro, on Razer's website
Razer Viper Ultimate Review

Razer Viper Ultimate – First Impressions


There is a lot to unpack about this mouse, and I mean that literally as well as figuratively. The device itself looks very sleek and ‘stealthy,’ with the little cutout between the shell and the main buttons being a noticeable design element. The RGB factor comes in the form of a programmable Razer logo at the back of the mouse. What’s cool here is that, if you turn that lighting zone off, the logo becomes almost invisible.

The Viper Ultimate comes with a charging cable that you can plug straight into the mouse so that you can keep playing while you’re charging the mouse, but I can’t imagine why anyone would want to do that since you also get an amazing charging dock. This dock doubles as a receiver extender: there’s room for the USB dongle to be plugged in on the top so that your receiver is right next to your pad at all times. It’s a really cool way to combine two actually useful functions, and even the RGB (it has a strip all along the bottom of the unit) serves a purpose, as you can program it to display the current battery level.

Razer Viper Ultimate Review Mouse

Mouse


The Viper Ultimate is light. On my scale it weighs in at 74 grams, which is light even for a wired mouse so it’s really impressive to see this in a wireless product.

It’s a medium sized (though pretty long feeling) ambidextrous design with side buttons on both sides, meaning that it can be enjoyed fully by lefties as well as righties.

On the bottom you’ll find a tiny hatch that stores the USB receiver along with an on/off switch and a DPI selector button (and indicator LED) and then also the two connector elements for the charging dock.

Razer Viper Ultimate Review Packaging

Packaging


Inside the box you get the mouse along with a charging cable and the aforementioned mouse dock.

There’s also the usual documentation as well as a printed note from Razer’s CEO thanking you for purchasing their stuff and a pretty generous amount of Razer stickers.

What I like here is the fact that the box opens from the side via a magnet system. This makes it really easy to repack the mouse (and extras) in case you’re going to a LAN or something to game.

SPECS:
Tech

  • Sensor: Focus+ Optical
  • Buttons: Razer Optical Switches
  • DPI: 100 – 20000, in steps of 50
  • Polling Rate in HZ: 125 / 500 / 1000
  • Connection: Wireless
  • Cable length: N/A
Size & Dimensions

  • Hand orientation: Left and Right
  • Width – Back: 6.58 cm / 2.59 in
  • Width – Front: 6.17 cm / 2.43 in
  • Width – Middle: 5.85 cm / 2.30 in
  • Length: 12.93 cm / 5.09 in
  • Height: 3.75 cm / 1.47 in
  • Weight: 74 g / 2.61 oz

Shape and finish


The Razer Viper (Ultimate) is an ambidextrous mouse with very little curvature anywhere. It does flare out a tiny bit at the back but this isn’t substantial in any way so I don’t think this could get in the way of anyone, regardless of grip style. It’s also pretty long and flat, with a gradual curve at the back as opposed to a sudden one, so if you like to have a filled palm this is something to note. Overall this is a pretty safe shape, and if you like this sort of flat ambidextrous design (think Zowie FK or Glorious Model O) it’s hard to imagine that there’s anything to dislike here.

The coating consists of two parts; you’ve got matte black on top of the shell and the main buttons, and then on the sides you’ll find textured rubber elements. Those of you who read my reviews with any sort of regularity will know that I love rubber side grips so I adore the way this mouse feels in my hands. The combination of the nice shape (for me personally; always remember that shape is subjective) and the rubber sides gives me a great grip under all circumstances, and the non-rubberized parts of the mouse feel great too.

Even after a CS:GO marathon spanning just over eight hours the mouse looked as if it was just taken out of the box. As someone who gets sweaty hands pretty easily when gaming I don’t like it when mice have a tendency to pick up skin oils, and the Viper Ultimate handles all of that like a dream.

Both side buttons are nicely placed for me, but I do have to say that I clicked the side buttons on the right side by accident once or twice during my testing. This isn’t a big deal, especially since there’s not a lot of travel to them and I deactivated them so my erroneous clicking was of no consequence but I thought I’d mention it regardless in case you’re someone who’s sensitive to this sort of thing.

On the bottom there are four medium sized feet along with a ring that surrounds the sensor, all made out of pure PTFE. These skates feel great, providing a really smooth and consistent glide straight out of the box. After the ‘lightweight and paracord cable revolution’ of the past months it seems like companies are now also shifting their focus towards the feet, and that’s lovely to see.


Razer Viper Ultimate Review
Razer Viper Ultimate Review

Buttons and scroll wheel


The release of the original Razer Viper also meant that Razer’s optical switches saw the light of day for the first time. Compared to a traditional mouse switch, these don’t need physical contact in order to send a signal to the PC and that, according to Razer, results in a response time of 0.2 milliseconds. I say ‘according to Razer’ because I obviously don’t have the equipment to do tests that require this amount of precision, but what I can test is how it all feels and performs.

The main clicks on the Viper Ultimate definitely do feel less crispy and snappy than what you get with (quality) mechanical switches so if you’re really sensitive to how your clicks feel this is something to consider. I can’t really say that I notice the fact that they’re supposed to actuate faster than mechanical switches (it’s not like there’s a noticeable delay with regular switches anyway) but I never had any issues with accidental or unintended clicks, and the fact that these switches last a lot longer than regular mechanical ones (70 million clicks versus 50 million) and make debouncing delay obsolete makes them a hit in my eyes.

I don’t particularly need extremely snappy clicks so I’d take these more durable and faster switches over traditional ones any time of the year, but don’t come away from this thinking that your ingame reaction times will be three times faster after getting this mouse or anything like that. It’s a great innovation, and the added durability along with the fact that these switches eliminate the possibility of accidental double clicking makes them worthwhile, but in actual gaming situations you don’t really feel a difference between this and other top tier gaming mice.

What you do definitely feel is how nicely they’ve implemented the buttons; there’s no sideways movement and while there is a tiny bit of post click travel on my unit it’s barely enough to even mention, so as a whole I really love the overall clicking experience with this mouse. The side buttons follow right along, too. They actuate with a pleasing click and there’s barely any travel to speak of there as well.

Something that I’m a bit less excited by is the scroll wheel. It’s just not sticking out of the shell enough in my opinion, and I also feel like it’s a bit too rigid. I don’t know if this is something that’s only on my copy but scrolling down feels notably easier than scrolling up, making for a bit of an inconsistent feeling. It does register everything just fine and it’s almost perfectly silent so it’s definitely not a bad wheel, it just doesn’t suit my personal tastes and I’m not a fan of the inconsistency between scrolling up and down.


Razer Viper Ultimate Review Mouse
Razer Viper Ultimate Review Mouse

Quality and cable


Shaking the vertically reveals a little bit of scroll wheel rattle, but other than that I can’t find any flaws on this front. The shell is very sturdy all throughout and there’s absolutely no way to accidentally actuate a (side)button by applying pressure on the shell so the build quality is up to scratch as far as I’m concerned.

In lieu of a cable the Viper Ultimate sends signals to your PC through Razer’s HyperSpeed Wireless. This does exactly what you’d expect it to do, but more on that in the next section. Wireless products, as we all know, need power to perform. This mouse comes with a rechargeable battery that can provide you with enough juice to game for 70 consecutive hours. Should you by any chance go on a medically miraculous 70-hour binge or you forget to charge your mouse you can always plug in the included charging cable and game while the mouse is charging up.

This cable securely connects to the device in such a way that it looks and feels as if it’s a wired mouse and I’m honestly impressed by how nice the cable is. It’s not quite paracord style (it’s a bit too thick and rigid for that) but it’s definitely nice enough to use in a pinch for gaming. With the convenience of the charging dock you shouldn’t ever be in a situation where you need to use the cable, but it’s still nice to know that you won’t be slinging around a fire hose in case you have to.


Razer Viper Ultimate Review Docked Mouse

Performance and sensor


Razer has really been throwing the kitchen sink at this mouse; not only did they make it wireless and included their new optical switches, they’ve also equipped the Viper Ultimate with a brand new sensor. The Razer Focus+ is the result of a collaboration with industry standard sensor manufacturers Pixart, and boy does it pack a punch. This one goes up to 20000 DPI, but aside from this fairly useless increase in sensitivity it also has a number of really nice features.

My personal favorite function is the Asymetric Cut-Off. With this you can not only customize the LOD but you can also set at what distance the mouse should resume tracking after you’ve picked it up. This doesn’t sound super useful for people with a high or medium sensitivity but if you pick up your mouse a lot due to your low sens this is a really nice feature to have. There’s also Smart Tracking, where you have to run your mouse over your entire playing surface after which the software (Razer’s Synapse) will calculate the ideal LOD.

The sensor itself is, as you would expect from a top tier gaming mouse, flawless. It tracks every move with pixel perfect precision and my testing found no evidence of smoothing, acceleration, angle snapping, or any other tomfoolery. It feels extremely responsive ingame and with its ability to keep tracking as long as your hand moves under 16 meters in one second it’s every bit as reliable as you want it to be for high performance gaming.

All of this would be moot if the wireless connection packed its bags and left every couple of minutes but Razer’s HyperSpeed Wireless performs every bit as good as their wired mice. There’s no perceptible latency at all and the connection didn’t drop even once during my testing. Razer’s done an outstanding job here, both with this sensor and with the wireless tech.

You can adjust the lighting and create macros and all of that good stuff in Razer’s software but the Viper Ultimate also has onboard memory for up to 5 profiles for that complete plug and play feeling.

Overall the Viper Ultimate is a joy to use, but I also have to give a special shout-out to the dock here. Setting the mouse down on the dock whenever you’re not going to be behind your PC for a while is very easy and satisfying and it ensures a constantly charged battery. On top of looking pretty damn sweet with the RGB (I know this isn’t of importance for a performance product at all) its double function as a charging dock and a neat place to store the receiver right next to your pad makes it way more than a silly added gimmick.


Razer Viper Wireless Review Mouse Underside
Razer Viper Wireless Review Mouse Underside

Grip


This mouse has a pretty safe shape but it is rather long and flat so this, in theory, isn’t ideal for palm grippers or for people who like a filled palm in general.

If your hands are on the smaller side I’d try and get those same hands on a real life model (the Viper wired is the exact same) before purchasing, because this isn’t exactly the smallest mouse on the market.

For anyone else this should be a good one; due to the fact that there are no awkward curves or grooves it houses a very large variety of grips with ease and there’s plenty of room everywhere on this mouse to ensure a comfy hold no matter how you like to place your fingers.


Razer Viper Ultimate Review Backside

Conclusion & Recommendation


This is one of the easiest recommendations I’ve made in my career. Razer might have (had?) a bit of a reputation for releasing overly marketed ‘form over function’ products in some parts of the community but this release proves that they absolutely know how to make a top tier product.

The fact that this is a wireless mouse with a lag-free connection and flawless sensor, complete a rechargeable battery (with a life of around 70 hours) at a mere 74 grams is impressive enough on its own but Razer has managed to get over the proverbial bar and then set it even higher with a number of interesting upgrades.

The optical switches may not feel as clicky and crispy as their mechanical counterparts but they do eliminate accidental double clicking entirely and you also get the added durability and speed, even though that last aspect isn’t actually noticeable ingame in my opinion. The sensor doesn’t only do the usual (useless) ‘we’ve raised the DPI’ trick but also gives you actually handy features such as Asymetric Cut-Off. Whether or not these things apply to you as useful will depend on your playing style and preferences but it’s really nice to see how Razer tries to push the boundaries here.

Even if you totally ignore the new features that Razer has added you’ve got one of the best gaming mice in recent years here; the only thing I can actively criticize is the scroll wheel and the fact that the optical switches aren’t as snappy as mechanical ones.

With a great shape, low weight, flawless sensor, great stock feet, a perfect wireless connection, and a number of interesting features this is one of the best gaming mice you can buy right now and without a doubt one of my personal favorites.

Thanks for Reading

47 Comments on “Razer Viper Ultimate Review”

  1. Which one would you recommend? The Razer Viper Ultimate, Model O or Model O-?
    My hands are 20cm by 10cm and I use claw grip.

    1. Personally I would recommend the Viper Ultimate; having no cable is always better than having one, even if it’s a really good one. Of course it’s easy for me to say this since I don’t have to think about budgetary restrictions but the Viper Ultimate really is an extremely good gaming mouse in my opinion.

      The shapes are extremely close so it’s really just a matter of looking at the features; do you prefer wireless or is that not a concern for you, do you like holes in your mouse, …

    1. The EC and S series by Zowie immediately come to mind when I’m asked about comfortable shapes. This is obviously subjective but for me Zowie are the ones to beat if it comes to shapes.

    1. We’re a team of multiple people but mine (the reviewer) is the Razer Viper Ultimate at this point. I’ve used the G Pro Wireless for about a year as a daily driver before that.

    1. I haven’t fully tested the regular Viper, but I do think that the improvements are worth it. The feet and cable (or rather; the lack thereof) alone are substantial upgrades.

    1. I haven’t tested the Air58 myself, but since the Viper is commonly available and the Air58 isn’t I’d wholeheartedly recommend the Viper.

  2. Hi prosettings, I plan to change mice and I hesitate between the viper and the g pro. My hand is 19cm by 10 cm and I play claw grip. Can you please advise me ? Thank you.

    1. Depends on whether you prefer a filled palm or not. The G Pro Wireless has a bit of a hump to support your palm whereas the Viper Ultimate is mostly flat. There are other differences obviously but since both mice are top performers with little to no objective downsides it’s best to compare shapes in my opinion.

    1. As luck would have it we have just been working on a Rainbow Six Siege mousepad guide! The SteelSeries QcK+ came out as the winner of that one, but of course these things greatly depend on personal preferences so you might not like that pad as much as the pros do.

    1. I feel like the shape is the major factor that will decide this battle for most people. One mouse might be slightly better than the other (better clicks on GPW, better stock feet on Viper, …) but the differences, in my opinion, aren’t so massive as to really firmly and objectively sway the decision one way or another. I’d say if you’re considering these mice to really factor in the shape; the Viper is much flatter and longer feeling than the Viper Ultimate, so if you prefer a more filled feeling for your hands then the GPW could be the one to go for.

    1. I hope you don’t mind me copy pasting a previous response. It’s a very fair question but one that gets asked a lot. I feel like the shape is the major factor that will decide this battle for most people. One mouse might be slightly better than the other (better clicks on GPW, better stock feet on Viper, …) but the differences, in my opinion, aren’t so massive as to really firmly and objectively sway the decision one way or another. I’d say if you’re considering these mice to really factor in the shape; the Viper is much flatter and longer feeling than the Viper Ultimate, so if you prefer a more filled feeling for your hands then the GPW could be the one to go for.

  3. Currently I don’t see a single pro listed as using this mouse.. there is one mouse rocking the top of every pro-chart today and that is the g pro wireless. Is this only down to the Viper Ultimate being too new? Is it expected that lots of pro’s will turn over to the Viper Ultimate?

    1. Well, most of the pros that we analyze (except for Fortnite pros, but they seem to be more into the ultra lightweight thing) don’t change their gear all THAT often. A lot of CSGO pros, for example, are still on EC2-A mice because they feel comfortable using them. That said: it always takes a while before a product really breaks through.

      Once some pros start using the Viper Ultimate there might be some sort of snowball effect (where their teammates ask to hold it and maybe switch themselves and so on) or it might not happen at all; we can’t know that for sure.

      Also important to note is that the Viper Ultimate came out pretty late in the year. Lots of pro scenes have a kind of break during the holiday period so there aren’t as many opportunities (such as tournaments) to spot the gear of new players so we might see the mouse pop up more often as the pro gaming scene gets back into gear.

      Again: this is all theorycrafting by me, it could also be that most pros stick to what they’re using and leave the Viper Ultimate to be what it is. It’s very hard to predict these kinds of trends.

  4. I like the DeathAdder Elite Shape but its feels a bit too big and too heavy .
    Should I change to this mouse?
    I’m also a fun of bit big backs on the mouse to rest my hands in between gaming

    1. If you like a pronounced backside the Viper Ultimate isn’t for you. Perhaps take a look at the Zowie EC, G-Wolves Skoll, Glorious Model D, or Xtrfy M4 for a lighter and smaller mouse with a similar feeling to the DA Elite.

    1. The Viper would be a good one for that, as well as the Zowie S series, or the Glorious Model O. The Endgame Gear XM1 is also an option if you like smaller feeling mice. There’s also the Logitech G Pro Wireless if you like a bit more of a ‘fuller feeling’ mouse. There are honestly plenty of options, but I hope this has helped you along the way a bit.

    1. It depends on your grip and personal preferences to be honest; if you like larger feeling mice it could be okay but it’s definitely cutting it close.

  5. Do you prefer the finalmouse ultra light 2 or the Razer viper ultimate? And also do the side buttons on the right side of the Razer viper ultimate a bother for gaming?

    1. I haven’t tested an Ultralight 2 in depth so I can’t really say. I will say that the side buttons on the Viper aren’t a bother for me at all, but depending on how you hold the mouse it could be that you feel them clicking every once in a while. How much this bothers you will depend on your preferences of course.

    1. It depends on where exactly you’re measuring. On Razer’s official site it says 12.68 cm, for example. I use a digital caliper to measure the mice I review, but even so these things can have variations between them. These measurements are really just to indicate what the size is approximately.

  6. Hello ProSettings. I would like to ask if you recommend me switching to the Viper Ultimate from Zowie S2… Does it have similar shape? I’m using claw grip but not that aggresive.. I’m still thinking about it and I just can’t decide.. =D Thanks in advance!

    1. It’s not really a similar shape in my experience. Both are ambidextrous mice but the feeling in your hand is quite a bit different, with the Viper feeling a bit lankier and flatter. As far as other characteristics go it kind of depends on what you prefer; the Viper Ultimate obviously has no cable, while the S2 has slightly better clicks.

  7. What sense should I play on with the Razer viper ultimate ?
    I love the mouse .
    And awesome content and answering all the questions .
    Well done

    1. That really depends on your personal preferences. You can always take a look at our settings guides to get an idea of what sensitivity the pros are using. While I’d never advise anyone to blindly copy a pro just because they’re pro it is a good starting point to use if you’re just getting into gaming.

  8. I bought the razer viper ultimate last week after reading your article and I am really satisfied with the mouse. It’s a great mouse and your article is really accurate
    Thanks for all the information

  9. I am using zowie S1 now, and I am thinking about the question,GPW or ciper Ultimate.What’s your suggestions?

  10. Anyone using the viper ultimate on a fingertip grip? I think the buttons on the right side are a bit annoying.

  11. They are not as annoying as the ones from Zowie because this mouse has more grip width and it’s harder to press the buttons, that’s my experience with it by palm gripping it.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.