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  3. G2pro vs RB637

Gaswei G2pro vs Retevis RB637

What G2pro does better (1) and where RB637 wins (1) — every spec side by side.

Gaswei G2pro
Gaswei · 2026G2pro
9.2Score
1 advantage≈ £45
Higher score
vs
Retevis RB637
Retevis · 2026RB637
5.8Score
1 advantage≈ £35
5.4Range & power2.3
8.4Battery7.1

Why is G2pro better than RB637?

  1. USB-C chargingYes · RB637: No

Why is RB637 better than G2pro?

  1. Battery capacity1,800 mAh vs 2,000 mAh+11%
Specifications

Side by side

Gaswei G2proGaswei G2pro≈ £459.2
Retevis RB637Retevis RB637≈ £355.8
Radio & range
Radio standardsPMR446PMR446
LicenceLicence-freeLicence-free
Digital mode (DMR / dPMR)NoNo
Frequency ranges446 MHz446 MHz
Transmit power0.5 W0.5 W
Channels1616
Maximum range (claimed)—2 km
CTCSS / DCS sub-tonesYes—
Power & battery
Battery capacity1,800 mAh2,000 mAh
Battery voltage3.7 V3.7 V
Power sourceRechargeable packRechargeable pack
USB-C chargingYesNo
Battery level indicatorYesYes
Design & durability
Protection ratingIP67—
Water protection (IPx)IPx7—
Shockproof—Yes
DisplayBacklit display—
ColoursBlackBlack
Features
VOX (hands-free)YesYes
VOX sensitivity levels9—
Channel scanYes—
Dual watchYes—
Flashlight—Yes
Emergency / SOS alarmYes—
FM radioYes—
Key lockYes—
Roger beepYes—
Monitor buttonYes—
Connectivity
Headset / earpiece jackYesYes
ConnectorsUSB-C, 2,5mm Klinke2,5 und 3,5 mm
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