Denver SW 181 Black Bluetooth smart watch with heart rate sensor blood pressure monitor and oxygen IP67 Waterproof and powder Product information Bluetooth 4.0 smart watch with heart rate sensor blood pressure sensor and oxygen Chip Set:RealTek 8762 can be paired with a smartphone via Bluetooth and a freely touch IPS screen of 1 -7 inches + a return button on the side to facilitate navigation Multideporting mode (run walk run indoors and riding a bicycle) control your daily activity and your dream shows SMS Emails Calendar Events and Activity on Social Networks Clock and Alarm Function IP67 Waterproof and Powder Fully compatible with iOS8 or Android 4.4 or Higher Built-in Lithium Lithium Polymer Battery:200 MAH Waiting Time of 5 to 7 days USB Magnét ICO to load features Reflections Smart Watch Bluetooth Heart Frequency Sensor Blood High Pressure Monitor and Oxygen Shows Call Identifier and SMS Notification Magnetic USB Charging Magnetic USB Included Battery Built-in Rechargeable Battery 200 MAH.