GoPro Hero10 Black has a
23.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor and features GP2 processor. On the other hand, Nikon S640 has a
12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Expeed processor.
GoPro Hero10 Black's sensor provides 11MP more than Nikon S640's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the Hero10 Black and S640 sensor size comparison.
Sensor Size and Resolution Comparison image of GoPro Hero10 Black and Nikon S640 Cameras
GoPro Hero10 Black and Nikon S640 have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
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
GoPro Hero10 Black
or the
Nikon S640 ,
including hyperfocal distance.