Anker 20,000mAh 30W Power Bank vs Anker Nano Power Bank 10,000mAh 30W

Buy the Anker 20,000mAh Power Bank if you need capacity and ports: it holds about four phone charges, has two USB-C ports plus USB-A, and a battery-level display. Buy the Anker Nano 10,000mAh if you want something pocketable with a built-in USB-C cable you can never lose. The Nano has the stronger owner rating (4.7 from 6,700 ratings vs 4.5 from 1,213), but the 20K is the better travel and multi-device bank.

• Choose the Anker 20,000mAh Power Bank if you want maximum capacity, a battery percentage display, and enough ports to charge a phone and a second device at once.
• Choose the Anker Nano 10,000mAh if you want a light, pocket-sized bank with a built-in USB-C cable and no loose cord to carry.