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Kensington SlimBlade Pro vs Razer DeathAdder V3

Detailed comparison of Kensington SlimBlade Pro and Razer DeathAdder V3. Compare specs, price, pros & cons to find which is best for you.

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Quick Verdict

The Razer DeathAdder V3 is our top pick with a 4.6★ rating (5,430 reviews). Standout strength: ultra lightweight at 59g. The Kensington SlimBlade Pro counters with no wrist movement needed.

Full Spec Comparison

Kensington

Kensington SlimBlade Pro

£89
VS
Razer

Razer DeathAdder V3

£89Best Pick
Rating
★★★★4.2
★★★★4.6
Reviews
3,450
5,430
Brand
Kensington
Razer
sensor
Optical trackball
30000 DPI Focus Pro
connectivity
Bluetooth, 2.4GHz
HyperSpeed 2.4GHz, Bluetooth
battery
4 months (rechargeable)
90 hours
buttons
4 (programmable)
5
features
Twist-to-scroll, ambidextrous
HyperPolling 4000Hz, optical switches
weight
285g
59g
Pros
No wrist movement neededLarge comfortable ballAmbidextrous designGreat for limited desk space
Ultra lightweight at 59gIncredible sensorErgonomic shape90-hour battery
Cons
Steep learning curveScroll can be impreciseNot for gaming
Simple designOnly 5 buttonsRight-hand only

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Kensington SlimBlade Pro

★★★★4.2(3,450 reviews)
from£89$89
sensorOptical trackball
connectivityBluetooth, 2.4GHz
battery4 months (rechargeable)
No wrist movement neededLarge comfortable ball
Steep learning curve
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Top Rated-13%
RazerAI VerifiedAI Verified

Razer DeathAdder V3

★★★★½4.6(5,430 reviews)
from£69RRP £793 retailers
sensor30000 DPI Focus Pro
connectivityHyperSpeed 2.4GHz, Bluetooth
battery90 hours
Ultra lightweight at 59gIncredible sensor
Simple design
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Frequently Asked Questions

Which is better: Kensington SlimBlade Pro or Razer DeathAdder V3?

The Razer DeathAdder V3 edges ahead with a 4.6★ rating vs 4.2★.Ultra lightweight at 59g. However, the Kensington SlimBlade Pro wins on no wrist movement needed. Your best choice depends on whether you prioritise gaming or ergonomic.

Is the Kensington SlimBlade Pro worth it over the Razer DeathAdder V3?

The Kensington SlimBlade Pro costs £89 while the Razer DeathAdder V3 is £89. The Razer DeathAdder V3 offers better value for money. Both are excellent for ergonomic and wrist-pain.

Kensington SlimBlade Pro vs Razer DeathAdder V3 — which should I buy in 2026?

Choose the Kensington SlimBlade Pro if you prioritise no wrist movement needed. Choose the Razer DeathAdder V3 if you prioritise ultra lightweight at 59g. Both are top-rated in the mice category.

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