Sudroid A8 4 inches IP68 Rugged Smartphones with Android 4.4.2 Os and Quad Core Dual Sim Supporting NFC(Green) Unlocked Cell Phone Only Supports Sim Cards like At&T, T-mobile and Straight Talk in America. Quad Core, Dual Sim. RAM:1GB, ROM:8GB. IP68 Waterproof. Rear Cmera: 5.0 Mega pixel. Android: 4.4.2(32-bit)