There is many features in the this oppo a57, I have also purchased it and I amusing this phone . in this phone the camera front and back both are awesome you can zoom and see the things which situated to long distance . the sound quality of this phone is also good the clear voice and good in talking . the oppo is looking slim and it is also a brand which denotes our status . you can purchase this phone from anywhere . this phone available in every mobile store . ram of this phone more specific and the battry is also good .it is easy to keep in pocket .the lots of people are buying this phone .the craze of the oppo in India is increasing day by day if the anyone want to purchase it as online . the many website are available they are advertising this phone and you can get some offer from the online shopping .all of that the oppo a57 is the best phone .i have purchased and you should take the advantages of this phone. thank you.