You can carry around an external battery pack with any phone. It’s not quiiiite as convenient because you have have your phone plugged in and that can sometimes be awkward to carry (but not bad if you normally carry a purse or backpack). Though it does avoid the need to power cycle your phone and my battery pack can charge my phone several times (and can charge multiple devices).

Honestly, best purchase I’ve ever made. It’s so stressful having a phone die and the battery pack keeps that from happening.