The Nikon D7100 is 3.5 mm narrower, 26.5 mm taller, 39 mm deeper and 180 g heavier than the Leica M9.
| Leica M9 | Nikon D7100 | |
|---|---|---|
| Size (W × H × D) | 139 × 80 × 37 mm | 135.5 × 106.5 × 76 mm |
| Weight | 585 g | 765 g |
| Lens | Leica M | Nikon F |
| Sensor | Full frame | — |
| Announced | 2009 | 2013 |