This is a white colour Power Bank but little big and heavy. But the good news is you can carry in your jeans pocket. It took around 6 or 8 hours to charge full according to your charger. And the changing speed by it in your device is average. It’s is little high price compared to other brand. But this is for its brand value of Mi. You can get easy replacement from your nearby mi service center in the warranty period. So you can get this as your long time power friend.