With fast charge, the battery level on Apple Watch Series 7 and later can go from 0 percent to 80 percent in about 45 minutes. The battery level on Apple Watch Ultra and later can go from 0 percent to 80 percent in about an hour.*
Fast charging requires an Apple USB-C Magnetic Fast Charging Cable. You can identify this cable from other chargers by the USB-C connector and the aluminum around the magnetic charger.
You also need one of these power adapters:
- Apple 18W, 20W, 29W, 30W, 61W, 87W, or 96W USB-C Power Adapter
- A comparable third-party USB-C power adapter that supports USB Power Delivery (USB-PD) of 5W or greater
Fast charging might not work in conditions that are too cold or too hot. If you have enabled cellular capability on your Apple Watch, keep your paired iPhone within range of your Apple Watch when fast charging.
If you're not sure which Apple Power Adapter you have, check the wattage on the top or bottom of the adapter:
* Apple Watch Ultra 2 battery life testing was conducted by Apple in August 2023 using preproduction Apple Watch Ultra 2 (GPS + Cellular) paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, cellular coverage, configuration, and many other factors; actual results will vary. Apple Watch All-Day Battery Life testing was conducted by Apple in August 2023 using preproduction Apple Watch Series 9 (GPS) and Apple Watch Series 9 (GPS + Cellular), each paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, cellular coverage, configuration, and many other factors; actual results will vary. Apple Watch Ultra, Apple Watch Series 8 (GPS), and Apple Watch Series 8 (GPS + Cellular) battery life testing was conducted by Apple in August 2022 using preproduction Apple Watch models each paired with an iPhone; all devices were tested with prerelease software. Battery life varies by use, cellular coverage, configuration, and many other factors; actual results will vary. Apple Watch Series 7 (GPS) and Apple Watch Series 7 (GPS + Cellular) battery life testing was conducted by Apple in August 2021 using preproduction Apple Watch models each paired with an iPhone; all devices were tested with prerelease software. Charge time varies with region, settings, and environmental factors; actual results will vary. All testing was done using Apple Watch Magnetic Fast Charging USB-C cable and Apple 20W USB-C Power Adapter.
Fast charging is supported on Apple Watch Ultra and later and Apple Watch Series 7 and later. Apple Watch SE models do not support fast charging.