The Olympus OM-D E-M10 Mark IV is 27.3 mm narrower, 64.9 mm shorter, 41.5 mm thinner and 957 g lighter than the Nikon Z9.
| Nikon Z9 | Olympus OM-D E-M10 Mark IV | |
|---|---|---|
| Size (W × H × D) | 149 × 149.5 × 90.5 mm | 121.7 × 84.6 × 49 mm |
| Weight | 1,340 g | 383 g |
| Lens | Nikon Z | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2022 | 2020 |