SuperMini is a credit card size 10,000mAh portable charger, which can be easily put in your pocket and extend your phone usage for 2-3 days. With 18W Power Delivery, it can fast charge your iPhone X up to 50% within 30 mins.
When I saw "Credit Card Size" I thought it was going to be tiny! It's around the same size as my Anker PowerCore 10,000mAh. The Supermini is slightly smaller though.
MFY.im
Power Vessel
Edison Calendar
SuperMini