The Ricoh WG-20 is 7 mm narrower, 3 mm shorter, 1 mm thinner and 28 g lighter than the Ricoh WG-30.
| Ricoh WG-30 | Ricoh WG-20 | |
|---|---|---|
| Size (W × H × D) | 122.5 × 61.5 × 29.5 mm | 115.5 × 58.5 × 28.5 mm |
| Weight | 192 g | 164 g |
| Lens | Fixed lens | Fixed lens |
| Sensor | 1/2.3" | 1/2.3" |
| Announced | 2014 | 2014 |