I am having this device for past 2 yrs.its exceptional in everything.works well.meets my needs.can easily get two days of usaymge with battery.guys those who have battery problem, clear cache and ram once a week and don’t use shareit app.if its a must for you, only use when needed then clear the app data, force stop it and reboot ur phone.it uses WiFi in background.using 360 security which helps in RAM and Cache management.