Dimensions
Size comparison
S1 Pro LFHD-1
| S1 Pro LF | HD-1 | Difference | |
|---|---|---|---|
| Height | 53 mm | 29 mm | +24 mm |
| Width | 108 mm | 62 mm | +46 mm |
| Depth | 20 mm | 180 mm | −160 mm |
| Weight | 145 g | 210 g | −65 g |
Drawn to the same scale from the official dimensions (front and side).
Why is S1 Pro LF better than HD-1?
- Weight145 g vs 210 g+45%
Why is HD-1 better than S1 Pro LF?
- USB-C chargingNo · S1 Pro LF: Yes
- Battery capacity2,200 mAh vs 2,400 mAh+9%
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 |
| CTCSS / DCS sub-tones | — | Yes |
| Squelch | — | adjustable |
| Power & battery | ||
| Battery capacity | 2,200 mAh | 2,400 mAh |
| Battery voltage | 3.8 V | — |
| Power source | Rechargeable pack | Rechargeable pack |
| USB-C charging | No | Yes |
| Battery level indicator | Yes | Yes |
| Design & durability | ||
| Weight | 145 g | 210 g |
| Width | 108 mm | 62 mm |
| Height | 53 mm | 29 mm |
| Depth | 20 mm | 180 mm |
| Protection rating | — | IP67 |
| Water protection (IPx) | — | IPx7 |
| Display | Backlit display | Backlit display |
| Colours | — | Yellow |
| Features | ||
| VOX (hands-free) | — | Yes |
| Channel scan | — | Yes |
| Emergency / SOS alarm | — | Yes |
| Key lock | Yes | Yes |
| Roger beep | — | Yes |
| Monitor button | — | Yes |
| PC programmable | Yes | — |
| Connectivity | ||
| Headset / earpiece jack | Yes | Yes |
| Connectors | 3,5mm Klinke | 2,5 und 3,5 mm, USB-C |
| Bluetooth | Yes | — |
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