vs
4.2Range & power8.9
Why is SM 660 better than freetalk eco_digi?
- Channels8 vs 6+33%
Why is freetalk eco_digi better than SM 660?
- Transmit power0.5 W vs 1 W2×
Specifications
Side by side
| Radio & range | ||
| Radio standards | PMR446 | Freenet |
| Licence | Licence-free | Licence-free |
| Digital mode (DMR / dPMR) | No | No |
| Frequency ranges | 446 MHz | 149 MHz |
| Transmit power | 0.5 W | 1 W |
| Channels | 8 | 6 |
| Maximum range (claimed) | 8 km | — |
| Privacy codes (CTCSS / DCS) | — | 155 |
| CTCSS / DCS sub-tones | — | Yes |
| Squelch | — | adjustable |
| Power & battery | ||
| Battery capacity | — | 1,650 mAh |
| Battery voltage | — | 3.7 V |
| Power source | — | Rechargeable pack |
| USB-C charging | — | No |
| Battery level indicator | — | Yes |
| Design & durability | ||
| Weight | — | 169 g |
| Width | — | 120 mm |
| Height | — | 54 mm |
| Depth | — | 35 mm |
| Protection rating | — | IP54 |
| Water protection (IPx) | — | IPx4 |
| Display | — | No display |
| Colours | White | Black |
| Features | ||
| VOX (hands-free) | Yes | — |
| Channel scan | — | Yes |
| Emergency / SOS alarm | — | Yes |
| Monitor button | — | Yes |
| PC programmable | — | Yes |
| Connectivity | ||
| Headset / earpiece jack | — | Yes |
| Connectors | — | 2,5 und 3,5 mm |
| Radios in the base pack | 3 | 1 |
