OnePlus Slim Magnetic Power Bank for $70: Sleek in silver grey aluminum with a chamfered edge, this power bank looks lovely and is very slim, measuring 3.77 x 2.71 x 0.34 inches, not to mention lightweight at just 120 grams. The display shows power remaining, watts in or out, temperature, and a few other stats. Cuktech 10 Power Bank for $40: With impressive build quality, including a nice grippy material on the underside and a handy display showing power output and input, this Cuktech (pronounced chook-tek) power bank almost earned a place above. Infinacore Pandora Portable Power Global Wireless Charger for $50: This was our pick for the best wall-charger power bank, and it is still a decent charger that plugs directly into the wall. Iniu Power Bank BaI-B64 for $72: Offering relatively low prices, Iniu is a power bank brand on the rise.