The Olympus PEN E-PL7 is 16.6 mm narrower, 33 mm shorter, 39.1 mm thinner and 443 g lighter than the Pentax K-3.
| Pentax K-3 | Olympus PEN E-PL7 | |
|---|---|---|
| Size (W × H × D) | 131.5 × 100 × 77.5 mm | 114.9 × 67 × 38.4 mm |
| Weight | 800 g | 357 g |
| Lens | Pentax K | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2013 | 2014 |