https://www.cnet.com/news/battery-life-on-2017-iphones-comparing-iphone-8-iphone-8-plus-and-iphone-x/ >Apple firmware sometimes slows down older iPhones with aging batteries to keep them from shutting down unexpectedly. That's the recent news that has the tech world abuzz. But we're checking in on a totally separate, completely unrelated, iPhone battery story. Of the newest 2017 models -- the iPhone 8, 8 Plus and iPhone X -- which ones have the best battery life? >I've used every one of the new iPhones for weeks, as everyday phones on everyday commutes. We've done a lot of CNET battery benchmarks, too. And here's the spoiler alert: iPhone battery life could be better. And it underlines something I keep feeling about iPhones in general: their battery life is functional, but not notably fantastic.