Will it work in your country?
Retevis lists LTE bands B1, B3, B5 and B8 and TDD bands B34, B38, B39, B40 and B41 for the L51 and marks it "Only Suitable for Asian Countries". The list has no band 20, the 800 MHz band most EU networks use outside cities, and no B7 or B28.
Try the push-to-talk apps on the L51
These services list the L51 as supported. Pick one and try what it can do.
The radio's keys work too: PTT plays the next call (hold it to talk), the knob or ▲▼ change the group, ◀▶ switch the app’s screens, the red key stops.
About Retevis PoC →Website ↗How big is it?
The L51 next to other radios, to scale. Pick up to three to compare.
Full specifications
Values come from the sources listed at the end of the page. Where they disagree, both values are shown.
| LTE FDD bands | B1 B3 B5 B8 |
|---|---|
| LTE TDD bands | B34 B38 B39 B40 B41 (Retevis lists B34 and B39 among the FDD bands)Sources differ |
| Region | Retevis: "Only Suitable for Asian Countries" |
| Networks | 2G and 4GSources differ |
| SIM | Two SIM slots, dual standby |
| PTT platform | Retevis's own PoC platform, with web management and dispatch consoles at retevispoc.com |
|---|---|
| Call types | Single, group and all calls in the spec table; single, group and friend calls in the description |
| Group forming | A team-up firmware adds groups that radios join with an invitation code |
| Programming | Over the air through the management platform; PC programming software and USB driver as downloads |
| Account | Created by Retevis support after the order; each radio is added with a validity of 5 years |
| Screen | LCD |
|---|---|
| Battery | 2,500 mAh |
| Battery life (published figure) | Up to 30 hours on standby |
| Charging | USB-C |
| Water and dust rating | IP54 |
|---|---|
| Weight | 142 g |
| Size | 116 × 54.6 × 35.1 mm (height × width × depth) |
| Operating temperature | −20 to +60 °C |
| Side key 1 | Long press starts voice recording; the radio plays back the last call |
|---|---|
| Side key 2 | Long press sends the emergency alarm |
| Alarms | Local and remote emergency alarm; GPS geofence alarm |
| Satellite positioning | GPS; the spec table also names APRS |
|---|
| Package | Radio, 2,500 mAh battery, belt clip, charging cable and user manual |
|---|
Where sources disagree
- Networks2G / 3G / 4G (spec table) · 2G and 4G (description)
- LTE TDD bandsB34 B38 B39 B40 B41 (spec table) · B38 B39 B40 B41, no B34 (page banner)
Questions
Does the Retevis L51 work in Europe or the US?
Retevis marks the L51 "Only Suitable for Asian Countries". Its LTE list is B1, B3, B5 and B8 plus TDD bands B34, B38, B39, B40 and B41, without band 20, the 800 MHz band most EU networks use outside cities. Compare the list with your operator in the LTE band checker.
Why is the Retevis L51 called a long range PoC radio?
It talks over the mobile network, not radio to radio, so the distance between two L51 radios does not matter where both have 2G or 4G coverage. Without coverage it cannot call at all.
Which push-to-talk platform does the Retevis L51 use?
Retevis's own PoC platform, with web management and dispatch consoles.
What is the difference between the Retevis L51 and L51S?
The L51S is an upgraded L51 sold on Retevis's Philippine store: 4,000 mAh instead of 2,500 mAh, more than two days of typical use, group forming with one button or an invitation code, and a lifetime free platform plan.
Does the Retevis L51 need a license?
No radio license: it is a push-to-talk over cellular radio. It needs a SIM card with mobile data and an account on Retevis's PoC platform, which Retevis support sets up after the order.
How long does the Retevis L51 battery last?
Retevis gives up to 30 hours on standby from the 2,500 mAh battery, charged over USB-C.
