The Olympus OM-D E-M10 Mark III is 2.5 mm narrower, 13.4 mm shorter, 20 mm thinner and 5 g lighter than the Nikon D3500.
| Nikon D3500 | Olympus OM-D E-M10 Mark III | |
|---|---|---|
| Size (W × H × D) | 124 × 97 × 69.5 mm | 121.5 × 83.6 × 49.5 mm |
| Weight | 415 g | 410 g |
| Lens | Nikon F | Micro Four Thirds |
| Sensor | — | Four Thirds |
| Announced | 2018 | 2017 |