The Olympus OM-D E-M1 is 5.4 mm wider, 4.5 mm shorter, 12.9 mm thinner and 17 g heavier than the Nikon D5300.
| Nikon D5300 | Olympus OM-D E-M1 | |
|---|---|---|
| Size (W × H × D) | 125 × 98 × 76 mm | 130.4 × 93.5 × 63.1 mm |
| Weight | 480 g | 497 g |
| Lens | Nikon F | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2013 | 2013 |