Those 200 MP sensors are 200 MP in name only. They're so small the individual pixels are smaller than the wavelength of light they're trying to capture. That's why when you use them, the max image size is usually around 50MP because binning is required physically
That is insane (not your comment, the fact that the sensors are that small)!
Here [1] is the first result when I searched, it's the powerfully-named Omnivision "OVB0B" sensor.
It has a resolution of 16384x12288 pixels (=201,326,592 pixels in total) meaning individual pixels are 0.61 µm. Visible light is generally around 0.4 µm to 0.7 µm so the sensor is definitely in that size region with its pixels. Wow. Thanks for pointing this out.
