Hi guys. Htc 820 dual sim is a great phone it has lots of features. I have purchased this phone on 2015 month of february and it was launched in the market on november 2014 and I am still using this phone. I have liked this phone a bit. Bcz this phone has a big issuse with its batery and heating problem. But this two problems can be solved by upgrade your phone to lolipop. Altough htc 820 is good.