The Canon EOS R100 is 10.6 mm narrower, 10.1 mm shorter, 4.9 mm thinner and 294 g lighter than the Sony A7 III.
| Sony A7 III | Canon EOS R100 | |
|---|---|---|
| Size (W × H × D) | 126.9 × 95.6 × 73.7 mm | 116.3 × 85.5 × 68.8 mm |
| Weight | 650 g | 356 g |
| Lens | Sony E | Canon RF |
| Announced | 2018 | 2023 |