Anker MagGo Power Bank (10K) vs Anker Nano Power Bank MagGo Slim 5K

Buy the MagGo 10K if you want a battery that gets a phone through a full day and props it up while it charges. Buy the Nano 5K if you want something you can slip into a pocket and forget about. The 10K has the smart display, the foldable stand and roughly double the capacity; the Nano is about a third of the weight and under half an inch thick. Owners of both rate them well, and the 10K's larger sample of ratings is slightly higher.

• Choose the Anker MagGo Power Bank (10K) if you want a stand, a battery readout screen and enough capacity for a full day or a weekend trip.
• Choose the Anker Nano Power Bank (5K, MagGo, Slim) if you want a magnetic pack that disappears in a pocket and only needs to top up a phone once.