The Sony Alpha a6400 is 14.1 mm narrower, 24 mm shorter, 9.2 mm thinner and 171 g lighter than the Olympus OM-D E-M1 Mark II.
| Olympus OM-D E-M1 Mark II | Sony Alpha a6400 | |
|---|---|---|
| Size (W × H × D) | 134.1 × 90.9 × 68.9 mm | 120 × 66.9 × 59.7 mm |
| Weight | 574 g | 403 g |
| Lens | Micro Four Thirds | Sony E |
| Sensor | Four Thirds | — |
| Announced | 2016 | 2019 |