The Canon EOS 90D is 3.8 mm narrower, 5.7 mm shorter, 5.6 mm deeper and 69 g lighter than the Canon EOS 6D.
| Canon EOS 6D | Canon EOS 90D | |
|---|---|---|
| Size (W × H × D) | 144.5 × 110.5 × 71.2 mm | 140.7 × 104.8 × 76.8 mm |
| Weight | 770 g | 701 g |
| Lens | Canon EF | Canon EF |
| Sensor | Full frame | APS-C |
| Announced | 2012 | 2019 |