The battery on the iPhone 8 and iPhone 8 Plus will have “about the same” as the current-generation iPhone 7 and iPhone 7 Plus devices, according to Apple’s website. Sure, those devices are no slouches when it comes to battery life, but the iPhone X will have them beat.
Apple announced that the battery on the iPhone X will last about two hours longer than the iPhone 7. That’s probably because of OLED’s better power efficiency and possibly due to a new L-shaped battery design. Either way, it means that you’ll be able to use your iPhone X for longer.