Hey I have been using oppo A37f from last year believe me this is the best option for small budget people. I am 100% satisfied with this product. sound reception wise product is perfect there is no need to worry about sound quality. it is 100% user friendly . it has 8mp primary camera. photo quality is also good much better than vivo. style & design wise this is best it is handy product and easily adjustable in pockets. if we talk about other features then oppo a37f has 2630 mah battery and android 5.1v lollipop operating system. look & feel wise I am satisfied it gives a look of iphone when carried in hand. but i’m bit disappointed by battery life but that is not a big issue for me. for me it has 100% value for money. I recommend this handset to everyone.