Overview

• ChargerLAB measured the standard iPhone 17 peaking around 27–28W over USB-C across Apple adapters ranging from 29W to 140W, including the 40W Dynamic Power Adapter.
• The result marks a modest uptick over the iPhone 16, which topped out near 23W in similar testing.
• iPhone 17 Pro models can briefly hit roughly 36W, though Apple states every iPhone 17 variant can reach 50% charge in about 20 minutes with a compatible charger.
• Wireless testing recorded a 29W MagSafe peak on the standard model, while Apple lists sustained MagSafe charging at up to 25W.
• Apple’s 40W Dynamic Power Adapter with 60W Max is on sale in the U.S., Canada, China, Japan, Mexico, Taiwan, and the Philippines, and proper USB-C cables remain required for fast charging.