Apple's iPhone 18 Pro Max is the fastest-charging iPhone ever, according to Ice Universe on X. It reaches 50% charge in just 15 minutes, matching Apple's announcement claims. The device hits 34% in 10 minutes and reports 100% at 55 minutes, though charging continues until 76 minutes.

In comparison, the iPhone 17 Pro Max reached 38% in 15 minutes and hit 100% at 72 minutes, peaking at 35W. The iPhone 18 Pro Max draws up to 52W, thanks to a larger battery and a more efficient 2nm chip. While the Galaxy S26 Ultra reaches 51% in 15 minutes and hits 100% in 43 minutes, it charges a smaller battery.

Apple's focus on charging speed marks a notable shift after years of slower charging performance.