The Canon EOS R is 10.5 mm wider, 13.1 mm taller, 34.7 mm deeper and 246 g heavier than the Olympus OM-D E-M5 Mark III.
| Olympus OM-D E-M5 Mark III | Canon EOS R | |
|---|---|---|
| Size (W × H × D) | 125.3 × 85.2 × 49.7 mm | 135.8 × 98.3 × 84.4 mm |
| Weight | 414 g | 660 g |
| Lens | Micro Four Thirds | Canon RF |
| Sensor | Four Thirds | — |
| Announced | 2019 | 2018 |