ProMotion displays used in the iPhone 14 Pro and iPhone 14 Pro Max, according to well-connected display analyst Ross Young, are “expected” to be able to go as low as 1Hz
Apple Watch Series 7 models employ LTPO displays, their battery life is up to 18 hours longer than previous versions, despite the fact that the display is always on
The ProMotion displays were able to conserve battery life by only generating fast frame rates when necessary. Refresh rates between 10Hz and 120Hz
Brands like Oppo and Samsung, on the other hand, can provide devices with a frequency as low as 1Hz.