The Olympus OM-D E-M1 Mark III is 1.5 mm wider, 4.8 mm taller, 1.1 mm thinner and 119 g heavier than the Canon EOS R8.
| Canon EOS R8 | Olympus OM-D E-M1 Mark III | |
|---|---|---|
| Size (W × H × D) | 132.6 × 86.1 × 70 mm | 134.1 × 90.9 × 68.9 mm |
| Weight | 461 g | 580 g |
| Lens | Canon RF | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2023 | 2020 |