The Apple iPhone XS Max was announced in 2018, September 12 With 6.5 inches, 102.9 cm2 (~84.4% screen-to-body ratio) Super Retina OLED, HDR10, Dolby Vision, 625 nits (HBM), Powered by Apple A12 Bionic (7 nm) and running iOS 12, up to iOS 15.6, planned upgrade to iOS 16, the device delivered smooth performance and multitasking capabilities. while the Li-Ion 3174 mAh, non-removable (12.08 Wh) ensured long-lasting usage.