Portable Charger for Apple WatchBuilt-in 1000mAh battery, easy carry to anywhere, key ring design hook on the bag, extend your Apple Watch battery life in an emergency when the power low, about 2.5 hours quick charging your watch full power. it could charge the watch 1-1.5 times. thin little gadgets convenient in purse pocket mini bag wallet Rechargeable Battery PackThis is an emergency charging re-charger,small lightweight and compact enough for a weekend getaway, combine a large travel power bank or other USB charging device, you can fast recharge to I Watches, the mobile charger will to be fully charged within 1.5 hours, easy to use when daily running exercise date office work CompatibleThis little charger is made of ABS plastic material. size 2.36 inch *1.57 inch, very handy, it just charging compatible with Apple watch series 10 9 8 UItra 7 6 5 4 3 2 1, SE,Ultra 2, 46/49/41/45/44/40/42/38mm,not for others smartwatch or phone or AirPods device Charging Protectio