TechRadar · Lightweight and Comfortable Design
Weighing only 49g, the mouse feels extremely light and provides comfortable ergonomics for multiple grip styles during extended gaming sessions.
TechRadarKeyboards & peripherals / Review roundup
Razer Viper V4 Pro
Razer Viper V4 Pro
Roundup updated 2026-10-08 · Summary based on 2 review sources · 3 review and comparison links
What reviewers found
Review summary
TechRadar: Weighing only 49g, the mouse feels extremely light and provides comfortable ergonomics for multiple grip styles during extended gaming sessions. TechRadar: Despite having a largely symmetrical body, the mouse is only produced in a right-handed model, leaving left-handed users without an option. Trusted Reviews: The Gen 4 optical switches provide snappy inputs and a lighter actuation, though they are somewhat loud when clicked.
A roundup of published reviews; we haven’t tested this product. How we work
At a glance
Good for
People checking layout, ergonomics and software compatibility
The catch
Despite having a largely symmetrical body, the mouse is only produced in a right-handed model, leaving left-handed users without an option.; The premium feature set comes with an expensive price tag compared to other ultralight mouse alternatives.
Where to buy
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Strengths and limitations
Pros
- Weighing only 49g, the mouse feels extremely light and provides comfortable ergonomics for multiple grip styles during extended gaming sessions.
- Battery runtime reaches up to 45 hours when using the 8000Hz polling rate, which improves significantly over rival mice.
Cons
- Despite having a largely symmetrical body, the mouse is only produced in a right-handed model, leaving left-handed users without an option.
- The premium feature set comes with an expensive price tag compared to other ultralight mouse alternatives.
Benchmarks not available yet
We don’t have published benchmark results for this model yet.
In depth
TechRadar · Lack of Left-Handed Model
Despite having a largely symmetrical body, the mouse is only produced in a right-handed model, leaving left-handed users without an option.
TechRadarTechRadar · Tactile Optical Switches
The optical switches beneath the main buttons offer pleasant, durable tactile feedback, although their clicks are somewhat loud.
TechRadarTrusted Reviews · Clicky optical switches
The Gen 4 optical switches provide snappy inputs and a lighter actuation, though they are somewhat loud when clicked.
Trusted ReviewsTrusted Reviews · Extended 8000Hz polling battery life
Battery runtime reaches up to 45 hours when using the 8000Hz polling rate, which improves significantly over rival mice.
Trusted ReviewsTrusted Reviews · High cost
The premium feature set comes with an expensive price tag compared to other ultralight mouse alternatives.
Trusted ReviewsSpecifications
Check layout, connections, software support and the exact model.
TechRadar · Razer Viper V4 Pro
- package weight
- 49g
- sensor
- third-generation Focus Pro 50K optical sensor
- polling rate
- 8K
Trusted Reviews · Razer Viper V4 Pro
- Weight
- 50 g
- Size (Dimensions)
- 63.9 x 127.1 x 39.9 MM
- Connectivity
- 2.4GHz wireless receiver
- Cable Length
- 1.8 Meter
- Battery Length
- 180 hrs
- DPI range
- 100 50000
- Number of Buttons
- 6
Published reviews & comparisons
TechPowerUp · Review ·
Additional review link
Razer Viper V4 Pro Review ↗
Publisher excerptThe ambidextrous, 49 g Razer Viper V4 Pro debuts the latest Focus Pro 50K Gen-3 sensor along with Razer's improved HyperSpeed Wireless Gen-2, lowering latency and improving reliability, and providing up to 180 hours of battery life. The main buttons are outfitted with Razer Gen-4 optical switches, the scroll wheel encoder is optical, and 8000 Hz po…
TechRadar · Review ·
Used in this summary
Razer Viper V4 Pro review ↗
Model and test details
Reviewed model: Razer Viper V4 Pro. See the original review for test settings.
Trusted Reviews · Review ·
Used in this summary
Razer Viper V4 Pro Review ↗
Model and test details
Reviewed model: Razer Viper V4 Pro. See the original review for test settings.
Specification references
TechRadar — Reviewed model: Razer Viper V4 Pro. See the original review for test settings.
Trusted Reviews — Reviewed model: Razer Viper V4 Pro. See the original review for test settings.
TechPowerUp — Razer Viper V4 Pro Review
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