Oppo A37 smartphone was launched in June 2016. . The Oppo A37 is powered by 1.2GHz quad-core Qualcomm Snapdragon 410 processor and it comes with 2GB of RAM. The phone packs 16GB of internal storage that can be expanded up to 128GB via a microSD card.this is coming not a hybrid sim slot this is best feature and this is VOlte