Both Canon M6 and Sony A6600 have APS-C sized 24.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the M6 and A6600 sensor size comparison.
As seen above, Sony A6600 has a 1.1x Larger sensor area than Canon M6. 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 M6 and Sony A6600 sensors have been tested by DxO and the results show that A6600 has a better overall score of 82, 4 points higher compared to M6's score of 78.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Canon M6 |
78 |
23.4 bits |
12.6 Evs |
1317 ISO |
Sony A6600 |
82 |
23.8 bits |
13.4 Evs |
1497 ISO |