S5 Circular SIM Card Smart Watch Bluetooth 3.0 for Android (Silver) Specifications: Display Screen: 1.22" IPS Resolution: 240 X 240dpi Battery: 380mAh Chip: MTK6261D Frequency: 108MHz Ram: 32M NOR Flash: 32M GSM Model: 850/900/1800/1900 Bluetooth: V3.0 Color: Silver Gross Weight: About 200g Net Weight: 76g Features: Phone Watch: You can plug a SIM card in the watch and make phone calls. Universal Charging Slot: With a USB charging cable included, you can charge your watch fast, easily, and safely. Rubber Watchband: The band is made of soft rubber, which makes it comfortable and trendy to wear. TF card is supported so that you can enlarge your watch storage. Telephone and Message Synchronization: With Bluetooth connected, no phone calls and messages will be missed. Tips: This product's battery is not fixed. And maybe the product can power on when it is idle for more than a month. On account of the wastage of itself, the battery may run out. Please charge your device on your own. Package included: 1 X Smart Watch 1 X USB Charging Cable 1 X Manual