Canon G9 X II has a 20.0MP 1' (13.2 x 8.8 mm ) sized BSI-CMOS sensor and features DIGIC 7 processor. On the other hand, Panasonic S5 has a 24.0MP Full frame (35.6 x 23.8 mm ) sized CMOS sensor and features Venus Engine processor.
One other difference between these two cameras that is worth mentioning is that Panasonic S5'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 moire occurring in certain scenes.
Below you can see the G9 X II and S5 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon G9 X II and Panasonic S5 Cameras
As seen above, Panasonic S5 has a 7.3x Larger sensor area than Canon G9 X II. 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. Canon G9 X II and Panasonic S5 sensors have been tested by DxO and the results show that S5 has a better overall score of 94, 29 points higher compared to G9 X II's score of 65.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon G9 X II |
65 |
21.9 bits |
12.5 Evs |
522 ISO |
Panasonic S5 |
94 |
25.1 bits |
14.5 Evs |
2697 ISO |