B7 Bluetooth Earphone Smart Bracelet, Support Sleep Monitoring / Blood Oxygen Monitoring / Heart Rate Monitoring(Black + Black Steel Chain)

B7 Bluetooth Earphone Smart Bracelet is a smart wristband designed for health monitoring and connectivity with Bluetooth devices. It tracks sleep, blood oxygen levels, and heart rate.

• Bluetooth version: 5.0
• Talk time: about 6-8 hours
• Standby time: about 3-4 days
• Battery capacity: Built-in 90mAh
• Charging method: Type-C input
• Charging time: about 1-2 hours
• Waterproof level: life waterproof
• Hidden earphone design for answering calls
• Blood pressure and oxygen monitoring
• Caller name and number display
• Large LED touch screen
• Personalized dial options
• Wrist motion activates screen
• Records sports data and exercise steps
• Heart rate detection
• Automatic sleep monitoring
• Magnetic suction and buckle design
• Single-touch operation
• Various sports modes
• Stopwatch and alarm clock functions