The Olympus OM-D E-M10 Mark II is 7.4 mm narrower, 12.5 mm shorter, 27 mm thinner and 260 g lighter than the Sony A7 III.
| Sony A7 III | Olympus OM-D E-M10 Mark II | |
|---|---|---|
| Size (W × H × D) | 126.9 × 95.6 × 73.7 mm | 119.5 × 83.1 × 46.7 mm |
| Weight | 650 g | 390 g |
| Lens | Sony E | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2018 | 2015 |