Sony RX100 III has a
20.0MP 1″ (13.2 x 8.8 mm ) sized BSI-CMOS sensor and features Bionz X processor. On the other hand, Ricoh GR II has a
16.0MP APS-C (23.7 x 15.7 mm ) sized CMOS sensor and features GR Engine V processor.
Below you can see the RX100 III and GR II sensor size comparison.
As seen above, Ricoh GR II has a 3.2x Larger sensor area than Sony RX100 III. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Sony RX100 III and Ricoh GR II sensors have been tested by DxO and the results show that GR II has a better overall score of 80, 13 points higher compared to RX100 III's score of 67.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony RX100 III |
67 |
22.4 bits |
12.3 Evs |
495 ISO |
Ricoh GR II |
80 |
23.6 bits |
13.7 Evs |
1078 ISO |