The Panasonic Lumix DC G9 is 16.9 mm wider, 30.4 mm taller, 31.9 mm deeper and 255 g heavier than the Sony Alpha a6400.
| Sony Alpha a6400 | Panasonic Lumix DC G9 | |
|---|---|---|
| Size (W × H × D) | 120 × 66.9 × 59.7 mm | 136.9 × 97.3 × 91.6 mm |
| Weight | 403 g | 658 g |
| Lens | Sony E | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2019 | 2017 |