The Olympus OM-D E-M5 Mark III is 7.7 mm narrower, 4.7 mm taller, 1 mm deeper and 216 g lighter than the Nikon ZR.
| Nikon ZR | Olympus OM-D E-M5 Mark III | |
|---|---|---|
| Size (W × H × D) | 133 × 80.5 × 48.7 mm | 125.3 × 85.2 × 49.7 mm |
| Weight | 630 g | 414 g |
| Lens | Nikon Z | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2025 | 2019 |