B9 Smart Bracelet Bluetooth5.0 Wristband Heart Rate Activity Sleep Monitor Fitness Tracker Intelligent Watch gold

Description

0.96inch color screem, simple and stylish design style, soft and comfortable strap.Built-in 100mAh battery, perfect gift for Christmas, Birthday, Thanksgiving day, etc.Automatically tracks your sleep and analyze your sleep quality with healthy reference.Real time heart rate monitor, you can adjust your lifestyle for better heart health.