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Retevis RB637
Retevis RB637 is a PMR446 walkie-talkie released in 2026. Key specs: maximum range (claimed) 2 km, transmit power 0.5 W, channels 16, battery capacity 2,000 mAh.
5.8Score
Range & power2.3
Battery7.1
price range£30–40Reference price converted from EUR
- Year
- 2026
- Brand
Retevis- Popularity
- #94 of 560
- Model numbers
- Retevis RB637Retevis RB637 1-PackRetevis RB637 4-PackRetevis RB637 2-Pack
2 kmMaximum range (claimed)
0.5 WTransmit power
16Channels
2,000 mAhBattery capacity
YesVOX (hands-free)
NoDigital mode (DMR / dPMR)
Spec guide
How it ranks among PMR446 walkie-talkies of 2026
Maximum range (claimed) · 2 kmBottom 6%
Transmit power · 0.5 WBottom 23%
Channels · 16Bottom 38%
Battery capacity · 2,000 mAhTop 50%
Compared with PMR446 walkie-talkies released in 2026. Bars show the share of models it beats.
compared with other PMR446 walkie-talkies
Why is RB637 a good choice?
Battery capacity: 2,000 mAhbetter than 77% of PMR446 walkie-talkies
Weak points
Maximum range (claimed): 2 kmworse than 94% of PMR446 walkie-talkies
Transmit power: 0.5 Wworse than 100% of PMR446 walkie-talkies
Specifications
Full specifications
Radio & range
- Digital mode (DMR / dPMR)
- No
- Frequency ranges
- 446 MHz
- Transmit power
- 0.5 W
- Channels
- 16
- Maximum range (claimed)
- 2 km
Power & battery
- Battery capacity
- 2,000 mAh
- Battery voltage
- 3.7 V
- Power source
- Rechargeable pack
- USB-C charging
- No
- Battery level indicator
- Yes
Design & durability
- Shockproof
- Yes
- Colours
- Black
Features
- VOX (hands-free)
- Yes
- Flashlight
- Yes
Connectivity
- Headset / earpiece jack
- Yes
- Connectors
- 2,5 und 3,5 mm
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.
Compare
Compare RB637 with
In collections
Two-way radios: Battery capacity from 2,000 mAh + flashlight27PMR446 walkie-talkies: Battery capacity from 2,000 mAh29PMR446 walkie-talkies: Flashlight43Two-way radios: Battery capacity from 2,000 mAh + VOX (hands-free)62Two-way radios: Channels from 16 + flashlight67Two-way radios: VOX (hands-free) + flashlight78Two-way radios: Channels from 16 + battery capacity from 2,000 mah80PMR446 walkie-talkies: Channels from 16122
