The Olympus OM-D E-M5 Mark II is 7.4 mm narrower, 11.4 mm shorter, 41.8 mm thinner and 162 g lighter than the Sony A7 IV.
| Sony A7 IV | Olympus OM-D E-M5 Mark II | |
|---|---|---|
| Size (W × H × D) | 131.1 × 96.4 × 79.8 mm | 123.7 × 85 × 38 mm |
| Weight | 658 g | 496 g |
| Lens | Sony E | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2021 | 2015 |