Both Sony A6400 and Canon 77D 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 A6400 and 77D sensor size comparison.
As seen above, Sony A6400 has a 1.1x Larger sensor area than Canon 77D. 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
Both Sony A6400 and Canon 77D sensors have been tested by DxoMark. DxoMark 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. Of the two cameras that we are comparing, A6400 has scored 83, 5 points higher than 77D.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony A6400 |
83 |
24.0 bits |
13.6 Evs |
1431 ISO |
Canon 77D |
78 |
23.6 bits |
13.3 Evs |
971 ISO |