The Canon EOS R100 is 3.7 mm narrower, 18.6 mm taller, 9.1 mm deeper and 47 g lighter than the Sony Alpha a6400.
| Sony Alpha a6400 | Canon EOS R100 | |
|---|---|---|
| Size (W × H × D) | 120 × 66.9 × 59.7 mm | 116.3 × 85.5 × 68.8 mm |
| Weight | 403 g | 356 g |
| Lens | Sony E | Canon RF |
| Announced | 2019 | 2023 |