Both Sony RX100 IV and Canon G7 X have 1″ sized 20.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the RX100 IV and G7 X sensor size comparison.
Sony RX100 IV and Canon G7 X 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
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. Sony RX100 IV and Canon G7 X sensors have been tested by DxO and the results show that G7 X has a better overall score of 71, 1 points higher compared to RX100 IV's score of 70.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Sony RX100 IV |
70 |
22.9 bits |
12.6 Evs |
562 ISO |
Canon G7 X |
71 |
23.0 bits |
12.7 Evs |
556 ISO |