Both Panasonic GX7 and Panasonic GM5 have 16.0 MP resolution sensors but Panasonic GX7's sensor is Four Thirds (17.3 x 13 mm ) and Panasonic GM5's sensor is Four Thirds (17.3 x 13 mm ).
Since Panasonic GM5's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Panasonic GX7.
Below you can see the GX7 and GM5 sensor size comparison.
Panasonic GX7 and Panasonic GM5 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
Both Panasonic GX7 and Panasonic GM5 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, GX7 has scored 70, 4 points higher than GM5.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Panasonic GX7 |
70 |
22.6 bits |
12.2 Evs |
718 ISO |
Panasonic GM5 |
66 |
22.1 bits |
11.7 Evs |
721 ISO |