Even though I still think wireless charging with a battery bank is a bit silly, the Anker MagGo 321 is super convenient and is the perfect thing to bail you out if you forgot to charge your phone overnight and need to leave the house immediately. The 5000mAh capacity will get you slightly less than one full charge on your iPhone, but it should be enough emergency juice to get you through the day and it weighs almost nothing and sticking it to the back of your phone is much more convenient than using something like the Anker Nano that hangs off the bottom and constantly feels like it’s going to break off in your pocket.