brand new and high quality Features:Optical heart rate sensor can monitor your heart rate in real for time during exercise to protect your heart for health.The sleep quality is monitored throughout the whole process, deep sleep, light sleep big data analysis sleep quality, so that you can easily sleep well.Built-in high-quality speaker brings clear and bright sound. Connecting to the mobile phone via Bluetooth-compatible allows you to listen to beautiful music on your wrist watch at any for time and any where.Using high-fidelity waterproof speaker, whether it is managing housework at home, or walking, running, cycling, mountaineering, when a mobile phone calls, it will be pushed to the watch in for time, Bluetooth-compatible call through the watch, freeing your hands and making communication more free.With MTK2502 for smart chip, high-speed intelligent operation, low power consumption, long duration. Specifications:Material: ABSChip: MTK2502Screen type: IPS 240x240Battery capacity: 300mAHSize: app.8.8x9.8x5cm/3.46x3.86x1.97inOptional Colors: Black, Pink, Red, BlueQuantity: 1set Note:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes:1 x for Smart Wrist Watch1 x Charging Cable1 x Manual(other accessories demo in the picture is not included.)