JOYROOM Portable Charger for Apple Watch, 5000mAh Power Bank 20W PD Fast Charging Dual Built-in Cables &4 Outputs, Compact Travel Keychain Battery Pack for iPhone 17/16/15/14/13& Apple Watch, Black

This pocket-sized power bank is handy for anyone who relies on an Apple Watch and iPhone throughout the day. Its 5000 mAh capacity and 20 W PD output keep devices charged without adding bulk.

You can clip it to a keyring and use the built‑in Lightning and USB‑C cables to top up your watch during a run, then plug a phone into one of the four ports for a quick boost on a short trip.