15 w。
The iphone14 supports 20W with wired charger, 15W with wireless charging, Magsafe and 7.5WQi wireless charging. If you use the official 20W standard fast charger, the iPhone 14 from low to full charge in about an hour and a half is enough.
The charging port is a Lightning port, and the headphones and charging port are the same port, located at the bottom of the fuselage.