The OnePlus 15 (Image credit: OnePlus) We’re closing in on the end of 2025 now, but there’s still at least one big smartphone hitter left to come, as the OnePlus 15 will be unveiled on October 27. That launch is just for China, but a global launch is expected to follow, and may well also happen before the end of the year. 1. It will have a massive battery The OnePlus 13 (Image credit: Philip Berne / Future) OnePlus has a habit of revealing details of its phones ahead of the full announcement...