Sensor size in smartphones is also "highly manipulable", because the smartphones are very flat and have serious angle of incidence issues as the lens is too close to the sensor. If consumers demand larger sensors, sure it can be done - but it will reduce the amount of light that reaches the edges of the sensor, eating the possible increase in image quality. Smartphone cameras are limited by thickness, not by sensor sizes.

Apple has been making the cameras protrude out more every year for a while now.

But smartphone cameras use telecentric lens…