Features: The 1.3-inch clear full-square large screen brings a clear visual experience on the wrist. IP67 waterproof, high water resistance level, satisfy the needs of daily life such as washing hands, being caught in the rain and swimming. Clear voice calls and receive messages and notifications more conveniently. Heart rate & blood-pressure & blood oxygen & sleep measurement technology, 24 hours monitoring. Record data in real-time and focuse on your health during the process of motion. Easy to use and perfect for running and outdoor sports. More functions, support exercise step, distance, calory road, shake to photograph and so on. Specification: Product name: Smart Bracelet Color: Blue/Black/Red/Purple/Green (Optional) Material: TPU Chip: Tai-Ling Micro 8266 Battery: 150 mah Charging mode: USB interface charging Screen: 1.33TFT color screen Waterproof rating: IP67 Using time: Use 5-7 days standby 15 days APP Language: Multi Language Package size:12.283 cm / 4.83.151.18 in(L *