The Nikon 1 S1 is 13.4 mm narrower, 12.2 mm shorter, 12.3 mm thinner and 125 g lighter than the Olympus PEN E-PL2.
| Olympus PEN E-PL2 | Nikon 1 S1 | |
|---|---|---|
| Size (W × H × D) | 115.4 × 72.7 × 42 mm | 102 × 60.5 × 29.7 mm |
| Weight | 362 g | 237 g |
| Lens | Micro Four Thirds | Nikon 1 |
| Sensor | Four Thirds | — |
| Announced | 2011 | 2013 |