Mice / Comparison

RAWM ER21 Pro vs Razer Viper V3 Pro

Mouse · RAWM

RAWM ER21 Pro

49 g · PAW3950 · Wireless
GEAR SCORE 92.0 / 100Top tier
Lightness86
Sensor92
Polling rate100
Connection100
Battery life85
VS
Mouse · Razer

Razer Viper V3 Pro

54 g · Razer Focus Pro 35K Gen-2 · Wireless · 2024
GEAR SCORE 91.0 / 100Top tier
Lightness82
Sensor94
Polling rate100
Connection100
Battery life90
Recency86
Verdict

RAWM ER21 Pro and Razer Viper V3 Pro are neck and neck on specs: gear scores 92 and 91.

  • RAWM ER21 Pro is 5 g lighter (49 g vs 54 g).
  • Battery life: Razer Viper V3 Pro leads (95 h vs 85 h).
Pick this

RAWM ER21 Pro

If you care most about weight.

Pick this

Razer Viper V3 Pro

If you care most about battery life.

Spec-by-spec comparison

RAWM ER21 ProRazer Viper V3 Pro
92Gear score91
49 gWeight54 g
PAW3950SensorRazer Focus Pro 35K Gen-2
—Max DPI35,000
8000 HzPolling rate8000 Hz
WirelessConnectionWireless
85 hBattery life95 h
—Release year2024
—Estimated price≈ $140

The gear score is computed from specifications only (e.g. for a mouse: weight, sensor, polling rate, connection and release year). It isn’t a lab test and doesn’t measure personal preferences like shape or grip.

Free · no install

Which one adds more to your setup?

The scanner finds your graphics card, CPU, RAM, monitor, mouse and keyboard in under a minute. You get a score out of 100, estimated FPS in games, a bottleneck check and upgrade tips made for you.

FAQ

Is RAWM ER21 Pro or Razer Viper V3 Pro better?

RAWM ER21 Pro and Razer Viper V3 Pro are neck and neck on specs: gear scores 92 and 91. RAWM ER21 Pro is 5 g lighter (49 g vs 54 g). Battery life: Razer Viper V3 Pro leads (95 h vs 85 h).

Which one is lighter?

RAWM ER21 Pro is 5 g lighter (49 g vs 54 g).