GT08 Bluetooth GT08 Smart Wrist Watch Phone Camera Support Sim Card Smart Health Watch for Android Samsung HTC iOS Apple iPhone Smartphone - Silver Cpu: 533mhz mtk6260a memory:128m+64m tf card: Support max 32gb tf card display: 1.54" inch tft HD lcd Connect to any android phone: Sync your apps and contacts and receive notifications when you get a text, e-mail, WhatsApp, Facebook message Bluetooth smartphone mate: Without sim card, you also could use it connect and communicate with the smartphone through Bluetooth Phone function: Make phone call directly from the smart watch, including answering and dial-up 1-3 months warranty