The majority of today’s high-end smartphones boast 120Hz or at least 90Hz refresh rates, especially now that Apple has joined the fray. People often praise how such a feature makes the experience feel smoother and more responsive, but faster refresh rates don’t come without its price. In addition to the literal cost of a more expensive component, there’s also the inevitable impact on battery life. There are various strategies to mitigate that, but Apple’s novel technique on the iPhone 13 Pro’s ProMotion display might be the move innovative of them all.
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