Dimensions
Size comparison
811RT668
| 811 | RT668 | Difference | |
|---|---|---|---|
| Height | 60 mm | 50 mm | +10 mm |
| Width | 35 mm | 116 mm | −81 mm |
| Depth | 160 mm | 35 mm | +125 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is 811 better than RT668?
- USB-C chargingYes · RT668: No
- DisplayBacklit display vs No display
Why is RT668 better than 811?
RT668 has no measurable advantages in this pair.
Specifications
Side by side
| Radio & range | ||
| Radio standards | PMR446 | PMR446 |
| Licence | Licence-free | Licence-free |
| Digital mode (DMR / dPMR) | No | No |
| Frequency ranges | 446 MHz | 446 MHz |
| Transmit power | 0.5 W | 0.5 W |
| Channels | 16 | 16 |
| Maximum range (claimed) | 5 km | — |
| CTCSS / DCS sub-tones | Yes | Yes |
| Squelch | adjustable | adjustable |
| Call tones | 10 | — |
| Power & battery | ||
| Battery capacity | 1,200 mAh | 1,200 mAh |
| Battery voltage | 3.7 V | 3.7 V |
| Power source | Rechargeable pack | Rechargeable pack |
| USB-C charging | Yes | No |
| Battery level indicator | Yes | Yes |
| Design & durability | ||
| Weight | — | 161 g |
| Width | 35 mm | 116 mm |
| Height | 60 mm | 50 mm |
| Depth | 160 mm | 35 mm |
| Shockproof | Yes | Yes |
| Display | Backlit display | No display |
| Features | ||
| VOX (hands-free) | Yes | Yes |
| Channel scan | Yes | Yes |
| Key lock | Yes | — |
| Monitor button | Yes | Yes |
| Voice encryption / scrambler | — | Yes |
| PC programmable | — | Yes |
| Connectivity | ||
| Headset / earpiece jack | Yes | Yes |
| Connectors | USB-C, 2,5mm Klinke | 2,5 und 3,5 mm |
| Radios in the base pack | 3 | — |
Related comparisons
vs
NXGKET 811vsNedis Walkie-Talkie 10km 8 Kanäle VOX
vs
Liniex RC-6410 Walkie-Talkie PMR 6km ReichweitevsNXGKET 811
vs
NXGKET 811vsCobra AM655 PMR-Walkie-Talkie 8km
vs
NXGKET 811vsCobra AM255 PMR Walkie-Talkie 5km Reichweite, 8 Kanäle
vs
Retevis RT24vsRetevis RT668
3.64.6
vs
Retevis RT668vsNedis Walkie-Talkie 10km 8 Kanäle VOX