libra89
Active member
I think AMOLED being an upgrade or downgrade is very subjective, so I don't think it's fair to include that in your list. I tried an AMOLED phone, and it was nice for sure, but I think I don't prefer it lol.The 640 isn't an upgrade over the 820 but you really can't go wrong with the price point. The lack of wireless charging, gorgeous AMOLED screen, dedicated camera shutter and capacitive buttons are the main trade offs.