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  3. RB637 vs RB669

Retevis RB637 vs Retevis RB669

What RB637 does better (1) and where RB669 wins (2) — every spec side by side.

Retevis RB637
Retevis · 2026RB637
5.8Score
1 advantage≈ £35
vs
Retevis RB669
Retevis · 2025RB669
9.4Score
2 advantages≈ £35
Higher score
2.3Range & power9.4
7.1Battery5.9

Why is RB637 better than RB669?

  1. Battery capacity2,000 mAh vs 1,200 mAh+67%

Why is RB669 better than RB637?

  1. Transmit power0.5 W vs 1 W2×
  2. USB-C chargingNo · RB637: Yes
Specifications

Side by side

Retevis RB637Retevis RB637≈ £355.8
Retevis RB669Retevis RB669≈ £359.4
Radio & range
Radio standardsPMR446PMR446, Freenet
LicenceLicence-freeLicence-free
Digital mode (DMR / dPMR)NoNo
Frequency ranges446 MHz446 MHz; 149 MHz
Transmit power0.5 W1 W
Channels1616
Maximum range (claimed)2 km—
Privacy codes (CTCSS / DCS)—260
CTCSS / DCS sub-tones—Yes
Squelch—adjustable
Power & battery
Battery capacity2,000 mAh1,200 mAh
Battery voltage3.7 V3.7 V
Power sourceRechargeable packRechargeable pack
USB-C chargingNoYes
Standby time—30 h
Battery level indicatorYesYes
Design & durability
Weight—148 g
Width—158 mm
Height—57 mm
Depth—33 mm
ShockproofYes—
Display—No display
ColoursBlackBlack
Features
VOX (hands-free)YesYes
Channel scan—Yes
FlashlightYes—
Monitor button—Yes
Connectivity
Headset / earpiece jackYes—
Connectors2,5 und 3,5 mmUSB-C
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