If you are looking for a battery pack for a day's use, this is the one. It is the slimmest 5000mAh power bank I have ever seen. The matt finish looks very nice and high class. The charging capabilities are great. It charges my iPhone 12 about 10% in 15 mins. Very fast charging. And it recharges very fast in about 1.5h. I am planning to get one for my sister, too.