Overview
This is the battery I would look at when a small backup pack has become a false sense of preparedness.
Phones are easy. The problem starts when the same bag also has a camera, laptop, lantern, tablet, headlamp, and a mess of USB-C cables. At that point, capacity alone is not enough. Output and recharge speed start to matter.
The Anker 737 works because it is still portable but has enough wattage to act like part of the kit instead of emergency decoration.
Best for
Travel, camp, camera kits, laptop carry, and people who actually lean on battery power instead of carrying a tiny pack out of habit.
Not for
Minimal users who only need one phone top-off, or anyone whose real problem is a bigger vehicle power system.
A real power bank feels different when it is built to do more than rescue a dying phone.