The handy PowerCore III Slim 5K is a flat 7.2 mm powerbank with an integrated cable. It can be held comfortably in the hand along with a smartphone, but it also fits easily into a trouser pocket or handbag. It is designed for the effortless charging of mobile devices. The powerbank supports Power IQ, a technology which charges devices in just under 3.5 hours. With its slender profile, speckled pattern and a white LED light wheel to show the battery status, it has a visual appeal as well.