Anker Nano Power Bank 10,000mAh 30W vs Anker Nano Power Bank MagGo Slim 5K

Both are small Anker Nano packs, but they solve different problems. The A1638 has a built-in foldable USB-C cable and two USB-C ports, so it charges phones and tablets without a loose cable; owners rate it 4.7 from 6,700 ratings. The MagGo A1665 snaps magnetically to a phone and charges wirelessly at up to 15W Qi2, which is convenient but ties you to MagSafe-style phones and loses charge to wireless heat. Buy the cable model for tablets, Android phones and travel; buy the MagGo for a MagSafe iPhone you want to top up without plugging in.

• Choose the Anker Nano 10K with built-in cable if you carry a tablet or Android phone and want a cable that can never be left behind.
• Choose the Anker MagGo 5K if you have a MagSafe iPhone and want to snap a pack on and charge without a cable.