The Fujifilm X-A1 is 12.6 mm narrower, 24.5 mm shorter, 14 mm thinner and 115 g lighter than the Olympus E-420.
| Olympus E-420 | Fujifilm X-A1 | |
|---|---|---|
| Size (W × H × D) | 129.5 × 91 × 53 mm | 116.9 × 66.5 × 39 mm |
| Weight | 445 g | 330 g |
| Lens | Four Thirds | Fujifilm X |
| Sensor | Four Thirds | — |
| Announced | 2008 | 2013 |