The Sony FX3 is 5.1 mm narrower, 13.8 mm shorter, 11.8 mm deeper and 116 g heavier than the Olympus OM-1.
| Olympus OM-1 | Sony FX3 | |
|---|---|---|
| Size (W × H × D) | 134.8 × 91.6 × 72.7 mm | 129.7 × 77.8 × 84.5 mm |
| Weight | 599 g | 715 g |
| Lens | Micro Four Thirds | Sony E |
| Sensor | Four Thirds | — |
| Announced | 2022 | 2021 |