The Canon EOS R100 is 7.4 mm narrower, 0.5 mm taller, 30.8 mm deeper and 140 g lighter than the Olympus OM-D E-M5 Mark II.
| Olympus OM-D E-M5 Mark II | Canon EOS R100 | |
|---|---|---|
| Size (W × H × D) | 123.7 × 85 × 38 mm | 116.3 × 85.5 × 68.8 mm |
| Weight | 496 g | 356 g |
| Lens | Micro Four Thirds | Canon RF |
| Sensor | Four Thirds | — |
| Announced | 2015 | 2023 |