Good smartphone at all, excellent battery backup, good looking MIUI user interface. I have 2 GB RAM and 16 GB Internal memory variant. All apps are running smooth until I installed facebook & messanger on it. After installing both apps, smartphone hanging too much. I’m unable to use the smartphone and this is very bad feeling for me. I uninstalled both apps and using them in browser. So this only one problem I found in this smartphone otherwise good smartphone.