I stopped purchasing phones when they became unable to take off the back, and pull the battery. What an invasion of privacy!

I had my current Note 4 setup for wireless charging, and Samsung wants to display ADS on the phone, as it charges?!
That was the last straw; I pulled the wireless charging coil out of it, and never used it again...

I don't trust apps on phones; they can do anything they like, and user has little or no awareness of what an app is actually doing on their device; they will grant game apps unlimited permissions; they are surprised when their bank account gets cleaned out.
I trust web apps, and little else, on my phone... ;-)