The Olympus PEN E-PL9 is 14.4 mm narrower, 33 mm shorter, 37 mm thinner and 323 g lighter than the Pentax KP.
| Pentax KP | Olympus PEN E-PL9 | |
|---|---|---|
| Size (W × H × D) | 131.5 × 101 × 76 mm | 117.1 × 68 × 39 mm |
| Weight | 703 g | 380 g |
| Lens | Pentax K | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2017 | 2018 |