The Olympus OM-D E-M5 Mark II is 3.2 mm narrower, 10.6 mm shorter, 35.7 mm thinner and 154 g lighter than the Sony A7 III.
| Sony A7 III | Olympus OM-D E-M5 Mark II | |
|---|---|---|
| Size (W × H × D) | 126.9 × 95.6 × 73.7 mm | 123.7 × 85 × 38 mm |
| Weight | 650 g | 496 g |
| Lens | Sony E | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2018 | 2015 |