It's already been a banner year for battery life, with newly released devices like the OnePlus 13 and OnePlus 13R producing impressive results in our battery testing. And soon, the new Galaxy S25 models from Samsung will have their chance to show just how long they can last on a charge.

A new rumor gives us an idea of what to expect for the batteries on Samsung's Galaxy S25 Slim and Apple's iPhone 17 Air.

New claims emerge about Apple and Samsung’s rumored super-thin phones The devices will reportedly have only a middling battery life Battery life could suffer if the thin chassis can’t adequately dissipate heat There’s been much talk in recent months about the so-called iPhone 17 Air,