This thing is the perfect size. It's not super big and fits perfectly in my pocket. I love that it charges the phone relatively quickly and that it doesn't get super hot like many other chargers. This little power bank is really cute, it's about the size of a deck of playing cards, but a little bit chunkier. I have the black and white one but it is the same style as the other color combinations.It charges quickly and it is very attractive to the customers becoz first its design is cool and attractive