I hv oppp a37 I used it n gave it to my mom
Battery backup poor if u r game lover
4g sucks lot of battery
And phone cannot be updated to marshmallow as oppo says no update
And camera both are super
But voice on calling very low
Speaker low
Music sound very low
It get hangs and soo much of bugs
While typing .even now late .response
It won’t go for a year too
Screen get scratch easily
And most important it heats like hell
Its has user friendly os
Customer service never pick up the calls
Something power button never works
And phone cannot be start until we press everything for long time
And nice phone bt if u can adjust the pain.