The Canon EOS 77D is 19 mm narrower, 42.7 mm shorter, 6.5 mm thinner and 475 g lighter than the Canon Canon EOS R3.
| Canon Canon EOS R3 | Canon EOS 77D | |
|---|---|---|
| Size (W × H × D) | 150 × 142.6 × 82.7 mm | 131 × 99.9 × 76.2 mm |
| Weight | 1,015 g | 540 g |
| Lens | Canon RF | Canon EF |
| Sensor | — | APS-C |
| Announced | 2021 | 2017 |