iPhone 18 Pro Max review: Apple's biggest, heaviest and longest-lasting superphone

This maxed out iPhone requires two hands to use. This maxed out iPhone requires two hands to use. We earn a commission if you buy something through an affiliate link. Apple's largest Pro iPhone gets its biggest battery upgrade yet to make it a true two-day phone with new Siri AI and a variable aperture camera. The iPhone 18 Pro Max is the supersized sibling of the regular 18 Pro and, though it is no longer Apple's most expensive phone thanks to the £2,000 iPhone Duo, it has a similarly large price tag to match costing from £1,299 (€1,599/$1,299/A$2,299). The 18 Pro Max follows the familiar formula of its Pro Max predecessors: take everything that's great about the 18 Pro and supersize the screen and the battery.