Anker <b>633</b> Magnetic Battery
Just Perfect ! Not heavy so much. And I am using with iPhone 12 mini and Max version. It cool that charging airpods pro as well. You can make special adapter for Apple Watch too like a ring style can stick on magsafe area and other side for Apple Watch. So it can be detachable. Very good idea actually.
Charging too slow takes so long to get charred
the magnet does not hold well