[Universal USB A & USB C Charging with Anti-Lost Design] The iWatch charger built-in USB C interface and equipped with a USB A charging port, this dual-port design is suitable for almost all power sources. Charge for Apple Watch using a USB A power bank, laptop, wall adapter, car charger, or USB C port on devices like the 15 series and iPad. The smart anti-lost rope design ensures you wont lose the USB A port.