Excellent phone with really practical features you can turn flashlight with just drawing v on screen. It is fantastic phone easy to use and looking good. Oppo a 37 never goes hang. It has very awesome desine n looking very smart the quality of camera both front and back it show it’s original strength.awesome phone. The oppo a37 runs android 5.1 and is powered by a 2630 mah non removable battery.the oppo a37 is a dual sim ( GSM and GSM) smartphone that accepts Nano - sim and Nano-sim.