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Razer Viper ultimate long review.

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post #1 of 4 (permalink) Old 10-22-2019, 07:16 AM - Thread Starter
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Razer Viper ultimate long review.

original review and video files

i would like to thanks Razer for those review units.
and u/Razer_TheFiend for being so nice and helpful.


the razer viper ultimate is technically an incredible mouse with a lot of innovation.
razer is flexing their tech on this one.
but the mouse is not perfect
there is some buttons issue and noisy wheel .
some strange choice on the mouse feet design.
and synapse is still the low point of that mouse.
it is my main by the way.

mouse spec:

sold $150 with dock ,$120 without dock,169 euro with dock.
razer lk optical 70m clicks.
4 ttc side buttons
same shape and size as the viper.
new mousewheel
new coating
hyperspeed wireless
380mah battery rated for
70h no rgb,60h rgb,99h no rgb low power mode and 500hz.
focus + sensor based on pixart 3399
motionsync and asymmetric liftoff
20k dpi
high power mode:650+ ips,50+G,99.6% resolution accuracy.
low power mode :480 ips,40G,99.5% resolution accuracy.


the mouse with the usual razer package.with a magnetic flap.
it contain the mouse, the rgb charging dock,one charging speedflex cable and the usual paperwork and stickers from razer. this is a pretty nice premium box and the cable come with a nice rubber tie.

shape and shell

the mouse is the same shape and size as the wired viper with some small changes.
my hand is 18.5 cm long by 10cm the shape is confortable for claw ,relaxed claw and some fingertip
the shape is kinda close to model o but shorter.
the viper ultimate still use the fused rubber sides grips with a small diamond pattern but
it has a larger gap at the mouse buttons, and a smaller mouse wheel.
there is a micro usb slot where the cable should be.
they improved the coating to feel more like pbt keycap and it feels incredible.
no holes for that weight is great.
it weight for me 75g, strangely my prototype was a bit lighter but had very different coating and mousewheel.
at the bottom it has a spot for the small dongle, a on of switch and a dpi button with a dpi led.
the dpi led stops when the mouse it put down.


the mousefeets are pure undyed rounded ptfe
i would like to thanks razer for that, this is a great change, they are incredible.
the glide is very smooth .
but not perfect.
they feels slower than expected on some hybrid and hard pads.
it would be nice if they stop using rectangles as mouse feet shape and use pill or rounded shape like logitech ,zowie or steelseries.
i m guessing they are still experimenting on that design.

mouse buttons

the main clicks are the low point on this mouse.
they are light, no pretravel and small post travel.
but the razer lk optical switch feels strange, almost no feedback they feels very linear .
they are very different from omrons.
unlike my prototype where they was very hard, here they are very light.
they feels a bit like the model o or hati clicks a bit in a way.
but sadly just like those mouse the buttons have some wobble,and rattle when shaked.
and it looks like razer tryed to follow current trend and satisfy players but in same time has fallen in the same trap as glorious and gwolves.

in the other hand the side buttons use ttc switches, they are very good and satisfying.
they are a bit small and flush with the shell, but i dont find them hard to hit.

mouse wheel

the mouse wheel has been changed. it is now smaller and tighter.
my prototype mouse wheel was bigger smoother and silent, a wheel more for browsing like the viper.
in the other hand the new wheel is a lot tighter and really feels like a gaming wheel with highly defined steps.
it is louder but it seems the wheel get better over time.
the spikes on it make it quite grippy.

the dock and speedflex cable

the dock magnetic charging dock is rgb, you can set it separately but it will need synapse to sync the rgb effects with synapse.it has a micro usb port for the cable and a usb spot for the dongle.
it has too a quite sticky base that will trap a lot of dust.
the mouse will display charging levels when charging on the dock.
the micro usb charging cable is a speedflex cable like the wired mouse, it is a bit thicker, but still feels good when playing wired, it is my favorite way of charging and i almost never use the dock.
sadly when the mouse charge by cable ,it will not show any battery levels.
an option in synapse to enable this feature will be handy.

sensor and wireless lag

ok. the sensor and wireless are the high point of this mouse.
the focus + is just incredible,during those month i jumped quite a lot from the model o the hati and the viper.
and yea i think the 99.6% accuracy is true.
i was not able to find a flaw here.hard pads cloth pads,bed sheets....this sensor is so smooth.
but not only that bit i never had any wireless cutting issue.i heard rjn has some and razer is working on it but on my side i wasn't able to reproduce any bugs.
i found too the asymmetrical lift off option improved a lot the cursor stability when lifting and putting down the mouse.
i'm guessing the mouse use the motion sensor inside to cut the sensor when needed.
in most of my test razer hyperspeed and motionsync was on point, with only 1ms to 2ms of lag in the worst case.
some other incredible part of that mouse are the razer lk optical switches.
they really have almost no debounce time, i measured less than 1ms most of the time.
and in lag test they destroyed the model o and hati.

the software....razer synapse.

well ...
this is another low point here.
the software ... synapse.
but it stay manageable with some setting.
make sure you do not install any of the extensions and keep only the main program.
the mouse doesn't need them.
make sure to disable all useless notifications in the system tray by clicking the bell icon.

now that is out of the way with all the horror stories lets really speak about the software
the software looks good, a bit clunky.some pages are full and some empty.
so a bit of cleaning and organisation would be nice.
you can sel lift off distance and options,mouse power modes, dpi,macro ,rgb options,remaps and hypershift.
but the mouse have a internal memory,and synapse only control the rgb and macros.
dpi options,lift off options, remaps ,hypershifts and rgb on/off are saved by the mouse itself are saved by the mouse.
synapse does not ask for an account now for most options, and this is a plus in my book.

but i would like some other small changes, synapse show the battery level on top of every pages but an option to show the battery level in a quick access in the system tray .
a notification on screen for mouse low battery would be nice too.
and a way to use hypershift to change the mouse polling rate without synapse would be a plus.

battery life.

lets finish on a high point
the battery life is exactly as expected.
380mah battery rated for
70h no rgb,60h rgb,99h no rgb low power mode and 500hz.
this mouse hold more than a week of battery life if you are not interested in rgb.
the rgb in the other hand can wreck the battery
glad there is no logo on the mouse when it is disabled.
caution about one thing.
the mouse use a motion sensor to wake up and shut down seamlessly.
this feels great and make the mouse like wired.
the problem is if you bump the mouse it will turn on every time and can show during films, or wake up the computer.
so it is a good idea to turn the mouse off .
it make me want an off button on the model o.

thanks you for reading this long review.
ask me anything it will be my pleasure to answer.
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post #2 of 4 (permalink) Old 11-05-2019, 04:32 PM
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viper looks more like beetle
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post #3 of 4 (permalink) Old 11-06-2019, 01:46 AM
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Is it possible to use all 4 side buttons at the same time or you have to choose between the left or right pair?

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post #4 of 4 (permalink) Old 11-06-2019, 11:09 PM
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Quote: Originally Posted by athkatla View Post
Is it possible to use all 4 side buttons at the same time or you have to choose between the left or right pair?

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