The Olympus OM-D E-M5 Mark III is 23.7 mm narrower, 64.3 mm shorter, 40.8 mm thinner and 926 g lighter than the Nikon Z9.
| Nikon Z9 | Olympus OM-D E-M5 Mark III | |
|---|---|---|
| Size (W × H × D) | 149 × 149.5 × 90.5 mm | 125.3 × 85.2 × 49.7 mm |
| Weight | 1,340 g | 414 g |
| Lens | Nikon Z | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2022 | 2019 |