Sony RX10 III has a
20.0MP 1″ (13.2 x 8.8 mm ) sized Stacked BSI-CMOS sensor and features Bionz X processor. On the other hand, Samsung NX1 has a
28.0MP APS-C (23.5 x 15.7 mm ) sized BSI-CMOS sensor and features DRIMe 5 processor.
Samsung NX1's sensor provides 8MP more than Sony RX10 III's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
One other difference between these two cameras that is worth mentioning is that Samsung NX1's sensor doesn't have an anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the RX10 III and NX1 sensor size comparison.
As seen above, Samsung NX1 has a 3.2x Larger sensor area than Sony RX10 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 RX10 III and Samsung NX1 sensors have been tested by DxO and the results show that NX1 has a better overall score of 83, 13 points higher compared to RX10 III's score of 70.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony RX10 III |
70 |
23.1 bits |
12.6 Evs |
472 ISO |
Samsung NX1 |
83 |
24.2 bits |
13.2 Evs |
1363 ISO |