Fujifilm X10 has a
12.0MP 2/3-inch (8.8 x 6.6 mm ) sized CMOS X-TRANS I sensor and features EXR processor. On the other hand, Sony RX100 IV has a
20.0MP 1″ (13.2 x 8.8 mm ) sized Stacked BSI-CMOS sensor and features Bionz X processor.
Sony RX100 IV's sensor provides 8MP more than Fujifilm X10'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.
Below you can see the X10 and RX100 IV sensor size comparison.
As seen above, Sony RX100 IV has a 2.0x Larger sensor area than Fujifilm X10. 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. Fujifilm X10 and Sony RX100 IV sensors have been tested by DxO and the results show that RX100 IV has a better overall score of 70, 20 points higher compared to X10's score of 50.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Fujifilm X10 |
50 |
20.5 bits |
11.3 Evs |
245 ISO |
Sony RX100 IV |
70 |
22.9 bits |
12.6 Evs |
562 ISO |