Both Canon M and Canon M10 have APS-C sized 18.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the M and M10 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon M and Canon M10 Cameras
Canon M and Canon M10 have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture.
DxOMark Sensor Scores
At Camera Decision, we also look at Dxo Mark sensors when available as we think it is a good indicator of image quality.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Canon M
65
22.1 bits
11.2 Evs
827 ISO
Canon M10
65
22.0 bits
11.0 Evs
753 ISO
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Canon M
or the
Canon M10 ,
including hyperfocal distance.
