iPhone Charging Speeds Compared
The absolute fastest way to charge an iPhone 8, iPhone X, or iPhone 8 Plus is with a USB-C power adapter and an accompanying USB-C to Lightning cable. Charging with USB-C activates a “fast-charge” feature that’s designed to charge the iPhone to around 50% in 30 minutes, and I saw about that level of charge in all of my USB-C tests.
5W wireless charging and 5W wired charging with the standard iPhone adapter were the slowest methods that I tested. 7.5W wireless testing was faster than 5W wireless charging, but not by much.
Charging at 12W with the iPad adapter wasn’t ultimately too far off of the fast charging results at the end of an hour, making this one of the better compromises between cost and speed.
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For a separate post on wireless charging options, we’ve been investigating third-party wireless chargers, and it’s looking like there may be a restriction put in place by Apple to limit 7.5W charging to approved manufacturers. […] Just because a wireless charger offers more than 5W, it’s not necessarily going to offer 7.5W charging speeds when used with an iPhone.
Previously: iPhone 8 Charging Speed.
Update (2018-11-13): Ryan Jones:
This super handy app measures iPhone charging speeds. Found out my 2.1A Griffin was terrible (3.68W!), bought a $9 4.8A Aukey and getting 12-24W!
3-6x faster charging for $10.
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