Apple announced the iPhone 18 Pro, iPhone 18 Pro Max, and iPhone Duo with significant battery improvements. The iPhone 18 Pro achieves 33 hours of video playback (10% gain over iPhone 17 Pro), while the Max reaches 40 hours (14% improvement). The new iPhone Duo foldable offers 26 hours on its inner display, powered by dual batteries and a new efficiency-focused A20 Pro chip.