The Leica M10-R is 19 mm wider, 12.5 mm shorter, 31 mm thinner and 102 g heavier than the Pentax K-S1.
| Pentax K-S1 | Leica M10-R | |
|---|---|---|
| Size (W × H × D) | 120 × 92.5 × 69.5 mm | 139 × 80 × 38.5 mm |
| Weight | 558 g | 660 g |
| Lens | Pentax K | Leica M |
| Sensor | — | Full frame |
| Announced | 2014 | 2020 |