The Olympus OM-D E-M5 Mark II is 25.3 mm narrower, 64.5 mm shorter, 52.5 mm thinner and 844 g lighter than the Nikon Z9.
| Nikon Z9 | Olympus OM-D E-M5 Mark II | |
|---|---|---|
| Size (W × H × D) | 149 × 149.5 × 90.5 mm | 123.7 × 85 × 38 mm |
| Weight | 1,340 g | 496 g |
| Lens | Nikon Z | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2022 | 2015 |