or, just plug in your AirPods or Apple Watch via the cable to your phone? Does the same thing, wastes less power.It would be great for Airpods and Apple Watch. There has been plenty of times where my phone had plenty of power, but I forgot to charge Airpods/Watch. The awkwardness of having my phone down, slow charge time, etc. would all be worth it to be able to get my airpods/watch charged versus them being dead.
also, that would never work because the AirPods and Apple Watch have the same magnet as the iPhone, so they would repel each other.