A:Answer The Anker MagGo Power Bank, 15W Ultra-Fast MagSafe-Compatible Portable Charger, is designed specifically for Apple MagSafe-compatible devices like the iPhone 12, 13, and 14 series. It does not appear to be compatible with non-MagSafe devices, such as the Apple Watch Ultra series or Apple Watch Ultra 3.
For charging the Apple Watch Ultra, you might want to look into other products, such as the Anker 3-in-1 Cube with MagSafe or Anker 737 MagGo Charger (3-in-1 Station), as they are designed to support Apple Watches along with other devices.
