The Nikon D7100 is 14 mm wider, 22.9 mm taller, 26.5 mm deeper and 355 g heavier than the Olympus OM-D E-M10 Mark III.
| Olympus OM-D E-M10 Mark III | Nikon D7100 | |
|---|---|---|
| Size (W × H × D) | 121.5 × 83.6 × 49.5 mm | 135.5 × 106.5 × 76 mm |
| Weight | 410 g | 765 g |
| Lens | Micro Four Thirds | Nikon F |
| Sensor | Four Thirds | — |
| Announced | 2017 | 2013 |