I know a handful of Lumia phones that come built in with it. I have been using one for about 2+ years and must say its extremely convenient. No more fiddling plugging in or tugging on cables. When you are not holding your phone you put it down somewhere, and if that somewhere has a charging plate you never have to worry about low battery. Have bought multiple of these wireless chargers and also had one modified for the car's cup holder where I tend to place my phone while driving.