The Olympus OM-D E-M5 Mark III is 7.3 mm narrower, 0.9 mm shorter, 20.3 mm thinner and 47 g lighter than the Canon EOS R8.
| Canon EOS R8 | Olympus OM-D E-M5 Mark III | |
|---|---|---|
| Size (W × H × D) | 132.6 × 86.1 × 70 mm | 125.3 × 85.2 × 49.7 mm |
| Weight | 461 g | 414 g |
| Lens | Canon RF | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2023 | 2019 |