Features: Build in professional heart rate monitoring module, 24hrs health monitoring (sleep monitoring, heart rate detection). Exercise monitoring (step counting, calorie consumption, distance, multiple exercise modes, positioning recording). Other functions (call reminder, sedentary reminder, text message reminder, bluetooth-compatible synchronization, alarm reminder, remote controlled for taking photos). Software message push ( line, and more.). Supports 17 regional languages (Chinese, English, Traditional, Japanese, French, German, Russian, Spanish, Portuguese, Arabic, Hindi, Italian, Hungarian, Czech, Dutch, Slovak). Specifications: Material: Silicone+Alloy Color: refer to picture to selection please Width: about 20mm/0.78" Fit Wrist Diameter 140-210mm/5.5-8.2inch Model: F10ta Screen: 1.1in Main control chip: DA14585 Battery capacity: 90mAh Waterproof: IP67 Charging: USB magnetic charging Package Includes: 1pc F10ta Intelligent Bracelet note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.