The Canon EOS R100 is 35.7 mm narrower, 30.9 mm shorter, 7.6 mm thinner and 594 g lighter than the Canon EOS 5D Mark III.
| Canon EOS 5D Mark III | Canon EOS R100 | |
|---|---|---|
| Size (W × H × D) | 152 × 116.4 × 76.4 mm | 116.3 × 85.5 × 68.8 mm |
| Weight | 950 g | 356 g |
| Lens | Canon EF | Canon RF |
| Sensor | Full frame | — |
| Announced | 2012 | 2023 |