The Olympus PEN E-PM2 is 28.2 mm narrower, 13.3 mm shorter, 4.2 mm thinner and 341 g lighter than the Leica M7.
| Leica M7 | Olympus PEN E-PM2 | |
|---|---|---|
| Size (W × H × D) | 138 × 77.5 × 38 mm | 109.8 × 64.2 × 33.8 mm |
| Weight | 610 g | 269 g |
| Lens | Leica M | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2002 | 2012 |