Oppo A37 is aa budget smartphone with a decent camera and good battery life at this price.
But other than this, there is no good point in this phone.
The performance of the is poor. The phone is packed with mny gestures which make it very much laggy.
If you use the phone for gaming than this phone is not for you. Gaming performance is also very poor.
The phone is average in looks and feel.
If you use its camera continuously for 10 to 15 minutes than the camera starts hanging which results in overall hanging of the phone.
If you want only a decent camera phone in this price range than you can buy it but forget about performance.
This is not a value for money device.