Friends, im udayan, using this phone from last 1 year as my primary device. The phone is feels like a premium touch by curved bavk pannel and about the build quality, Its enough better. The phone comes with a snapdragon 810 processor which is based on cortex a53 and a57 architect which is more power efficient amd gives you more battery life. really once its charge you can easily use it whole day.
About the display. its a 5.5 IPS LED display with 401ppi density of pixel which gives us more sharp image.
The varient is also comes with two models. One is 16gb of internal and 3gb of ram. Another one is 64gb of internal and 4gb of ram. So we can say.the phone is welly balanced
The ohone supports all the requriedmesnt like acclerometer. proximity. ambient light sensor. and a front panal FINGER PRINT with enlished design.
I did not faced any problem from first time. I will suggest you if you are not brand moving people.its really a good phone.