Can you charge an iPhone Air with an Apple 5W USB-A?

Worked out from the manufacturers’ specifications. Have a different charger? Pick it below the answer.

Answer
Yes, but slowly

It charges, but at about 5 W instead of the 20 W the iPhone Air can take.

Power delivered5 W of 20 W max
0 Wfast: 20 W
0 → 50%
~1 h 10 min
0 → 100%
~2 h 50 min

Estimated from the manufacturer’s stated fast-charge time, with the device idle.

Try another charger

How long to 50% with each charger

Shorter bar is faster. The highlighted row is the charger on this page.

Want it faster?

Full speed needs 20 W or more. These chargers get there:

iPhone Air charging specs

Fast charging needs
20 W
Max input (approx.)
20 W
Apple 5W USB-A
5 W · USB-A

Sources: Apple: iPhone Air tech specs · Apple: Fast charge your iPhone · Apple: About Apple USB power adapters. Checked 2026-10-17.

Quick answers

Is it safe to charge the iPhone Air with the Apple 5W USB-A?

Yes, but it is a basic 5V USB-A charger without Power Delivery, so it can only deliver a few watts.

How many watts does the iPhone Air need for fast charging?

20 W or more. Fast charges to 50% in about 30 minutes with a 20W or higher USB-C adapter.

How long does the iPhone Air take to charge with the Apple 5W USB-A?

About 1 h 10 min to 50% and 2 h 50 min to full, estimated with the device idle.