Hi fully read this review oppo A37 is negetive product I already buy thos product . It high cost mobil this product speed is low I not satisfy with oppo A37 finally I sold this product for low price. When use this mobil I feel very badly . It not perform clearyly . Oppo A37 users face the hanging problems. I suggest to all it not good product and not friendly with usres. It include low quality features . This mobil not useful for students and daily user. It take lot of time when charging.