The current iPhone 15 prices as of August 2025 range approximately from $404 to $644 depending on storage and carrier, with average prices around $486 for 128GB, $540 for 256GB, and $631 for 512GB models. The upcoming iPhone 17 series is expected to cost about $50 more than the iPhone 16 series, with a starting price around $850 for the base model, $1,050 for iPhone 17 Pro, and $1,250 for the iPhone 17 Pro Max, influenced partly by tariffs and other economic factors.