Does bold font on iPhone 11 Pro drain battery faster than regular font?

Technically it would use less power. Since most screens are white with black text, anything black on an OLED display is using no power to display. Bold fonts are displaying more black than regular fonts so theoretically they would use less power. Now granted the difference is so small it would probably be immeasurable, but in theory, they would use less power.

Williamsy1 Said:

"Does bold font on iPhone 11 Pro drain battery faster than regular font?"

-------

Font Draining the Battery:

No. Font is part of the GUI. That would play no role the the battery.