Eli5: Why can’t we choose a specific screen refresh rate on phones?

Question

Why is it always 60 or 120 or 144? Why can’t I input the value I want (for example, 90 or 100 or even 87)?

Edit: FYI, my phone is a Motorola Edge 40.

In: Technology

Answer 1

I think some phones with high refresh rate panels let you drop the frame rate down to 60 to save battery, but there’s no real need to select some custom refresh rate between 60 and whatever the maximum is so they just don’t go to the trouble of implementing it as a feature either in the actual chip driving the screen or the OS software.