The Olympus OM-D E-M10 Mark II is 0.5 mm narrower, 16.2 mm taller, 13 mm thinner and 13 g lighter than the Sony Alpha a6400.
| Sony Alpha a6400 | Olympus OM-D E-M10 Mark II | |
|---|---|---|
| Size (W × H × D) | 120 × 66.9 × 59.7 mm | 119.5 × 83.1 × 46.7 mm |
| Weight | 403 g | 390 g |
| Lens | Sony E | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2019 | 2015 |