The Olympus OM-1 is 4.6 mm narrower, 6.8 mm shorter, 15.7 mm thinner and 100 g lighter than the Canon EOS R6 Mark III.
| Canon EOS R6 Mark III | Olympus OM-1 | |
|---|---|---|
| Size (W × H × D) | 139.4 × 98.4 × 88.4 mm | 134.8 × 91.6 × 72.7 mm |
| Weight | 699 g | 599 g |
| Lens | Canon RF | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2025 | 2022 |