"The Huntkey HPBA3500 looks stylish, which is very important. But its plastic body can easily attract scratches. The device is quite thin: just 9 mm. It makes it compact, which is very important for daily use. While most power banks are bulky and weighty, the Huntkey HPBA3500 is comparable to an ordinary phone, so you can easily take it with you. The downside is low capacity. Most today's phones have 2000 mAh, and our tests show that the effective capacity of this device is 2350 mAh, which lets you charge your phone only once, so this model is not for long trips."