The Anker PowerCore+ 20100 USB–C is priced higher than this version and the one extra port is an USB-Type C port which can charge/run latest 2016+ Macbooks as well as many modern ultrabooks and Chromebooks at 15-watt charging speed.

• Lightest and most compact high-quality 20000 mah portable charger in the market
• True 20,100 mAH battery capacity
• Can charge most Android Phones and iPhones from 0 to 50% in about 40 to 50 minutes
• 2 fast charging 2.4 Amp Ports (maximum charging speed supported by iPhone 7, 7 Plus, 6S, 6 Plus, 5, SE, etc.)
• Total 4.8 amp output means you can charge two iPhone 7 or 8 phones at a fast speed at once.
• Slim, narrow and long design.
• Very low weight for capacity (12.6 oz or 350 gm).
• Solid build quality with double-layer inner metal & outer polycarbonate shell
• Matte understated finish with curvy sides
• Reasonable Price