iOS 13 dark mode extends up to 30% battery life for OLED screen iPhone

When Dark Mode was marketed as a headline feature in iOS 13, Apple promoted it as an alternative new look that was easier on the eyes when viewed in dark environments. Oddly though, Apple never mentioned that it also potentially offers energy-saving benefits – particularly for OLED iPhones, since pixels on an OLED panel are individually powered and true black pixels remain inactive.

PhoneBuff notes one important variable in his test that conditioned the results: The iPhones both had their displays set to 200 nits brightness. At 100 nits, which is what you’d expect indoors, two hours on Twitter saved just 5 percent more battery in ‌Dark Mode‌. The same test performed at 300 nits, which is closer to outdoors use, saw ‌Dark Mode‌ save 12 percent battery.

  • How to Enable Dark Mode in iOS 13

Either way, the test appears to prove that ‌Dark Mode‌ is a significant battery saver for OLED iPhones,

which include the iPhone X, ‌iPhone XS‌, and iPhone 11 Pro,  but not the iPhone XR or iPhone 11.

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