uacd
macrumors 68000
About 20% increase in battery life on iPhone 17 Pro in my experience. Phone doesn’t heat as much as it used to in full 120Hz mode. Twenty percent, give it or take it. I think it is good and worth the “bad” experience since as you said “what’s the point if static images are 1 Hz and videos are 60 Hz”, disabling it just caps it for hungry apps and UIHow does turning it off save you battery? Since its variable rate it can go down to 1Hz if its a static image for a few seconds (at least that's how I understand the technology). That means it would in theory consume less battery since it doesn't have to refresh the screen as often as a 60hz screen does or sometimes consume more if you are using the full 120Hz. Guess its all down to how we use our devices 🤔