I am using this phone before last 1 years it is working fabulous. its battery backup is too good and 512mb ram. is working like using a 1gb ram .the phone has a good camera like s7 edge but there is a huge problem. it heats like fire when playing heavy games like asphalt 8, nfs most wanted, modern combat 5, dead trigger 2 etc. the games who are above 1 gb. Its charge with a lighting speed 0 to 100 % in 30 minutes the speakers of the phone is of 100 db the sound of the speaker is very good