The Olympus E-3 is 32.7 mm wider, 52.3 mm taller, 40.7 mm deeper and 621 g heavier than the Olympus PEN E-PM2.
| Olympus PEN E-PM2 | Olympus E-3 | |
|---|---|---|
| Size (W × H × D) | 109.8 × 64.2 × 33.8 mm | 142.5 × 116.5 × 74.5 mm |
| Weight | 269 g | 890 g |
| Lens | Micro Four Thirds | Four Thirds |
| Sensor | Four Thirds | Four Thirds |
| Announced | 2012 | 2007 |