MagSafe test shows that with 20W PD charger, and the surface temperature of iPhone 12 pro max is low, and the power is below 20%, MagSafe power can reach 18W, normal temperature power between 11-14W, warm state power is about 9-10W. When slightly hot, the power is only 5-7W. With its small size and no active cooling, MagSafe will still be inferior to 2020 or even 2019 Android flagships when it comes to wireless charging.