The Olympus OM-D E-M1 Mark III is 9.4 mm narrower, 24.6 mm shorter, 7.1 mm thinner and 260 g lighter than the Nikon D780.
| Nikon D780 | Olympus OM-D E-M1 Mark III | |
|---|---|---|
| Size (W × H × D) | 143.5 × 115.5 × 76 mm | 134.1 × 90.9 × 68.9 mm |
| Weight | 840 g | 580 g |
| Lens | Nikon F | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2020 | 2020 |