Buy at VerizonApple iPhone 15 Pro Max 6.7-inch Triple camera 4422 mAh 8GB $678 at AmazoniPhone 17 Pro Max vs iPhone 15 Pro Max differences:Table of Contents: DesignDisplayPerformanceCameraBatterySpecsSummaryDesign and SizeA new look that is an acquired tasteThe main visual change with the iPhone 17 Pro Max is as plain as day — that giant new camera island on the back. Size-wise, the iPhone 17 Pro Max is just slightly bigger than the 15 Pro Max. CPU Performance Benchmarks:Geekbench 6Single Higher is better Apple iPhone 17 Pro Max 3775 Apple iPhone 15 Pro Max 2958 Geekbench 6Multi Higher is better Apple iPhone 17 Pro Max 9749 Apple iPhone 15 Pro Max 7288 View allThe benchmark results show a big jump in performance:34% faster single-core CPU performance44% faster multi-core CPU performanceThe latter was the first 3nm chipset used on an iPhone, and actually the first 3nm chip on a mobile device. iPhone 17 Pro Max features 12 GB of RAM for futureproofness' sake, whereas the iPhone 15 Pro Max boasts 8 GB of RAM. Specs ComparisonHere is how the iPhone 17 Pro Max specs compare against the iPhone 15 Pro Max .