Anyone who owns an iPhone or an Android phone can tell you that the auto-brightness controls are worthless. Now there’s scientific proof:
Automatic Brightness on existing smartphones is close to functionally useless because the manufacturers have not made the effort required to develop, evaluate and test the software and hardware so that they work properly and effectively. All of the models we tested also have serious operational errors and bugs indicating how little an effort has been made to make them work (or rather not work) properly. It’s clear that most manufacturers are using ad hoc implementations instead of methodical science and engineering, which is shameful and shocking