If there is any good power bank for Apple device then you should consider checking out IQIYI [MFi Certified] Apple Watch Charger that not only charges your iPhone or iPad but even an Apple Watch. What’s good about this power bank is it has an Apple Watch charger already built-in and with a USB A port, you can also charge other iOS devices. With 2100 mAh backup, it’s enough to charge your Apple Watch up to 10 times and iPhone at least 1 time.
You can grab it for $36.26 after you clip the on-page coupon on Amazon.
From the Product Page:
Function– IQIYI Apple watch and phone charger charge your Apple watch and phone simultaneously. With built-in integrated magnetic charging module and USB port, it is ideal for all 38mm 42mm 44mm 40mm Apple Watch models. Apple Watch Series 1/2, Apple Watch Sport, Apple Watch Nike+, Apple Watch Hermès, Apple Watch Edition and iPhone, smartphones, cameras, PSP gamer etc.
Certified Quality and Safety — Apple MFi Certified. With a built-in magnetic charging module, this apple watch charger is a certified product. The ABS cover/surface feels smoothly for your hand. Multi-Protection – Flame retardant material, over-current, over-voltage, over-heat and short-circuit protection ensure secure charging for your Apple watch and phone
Portable — Super compact design makes it in a pocket size, you can take it with you anywhere, especially on a trip. This charger can fully charge your Apple watch 3 times from 0% to 100%, or charge your iPhone 7 from 0% to 85%
Ideal Charging Companion for Home Office and Travel: It is with super compact design saving your space on the desk and easily being slipped into your travel bag.
You will get–18 months manufacturer warranty and lifetime service support; Apple MFi Certified Wireless Charger Power Bank for Apple Watch and phone