gejian NFC Smart Watch Men Women 1.85 Full Touch Screen Waterproof Sports Fitness Bracelet Bluetooth Call Smartwatch

Automatic infrared blood oxygen measurement, sleep apnea monitoring (snoring monitoring), Lorentz HRV scatter plot, scientifically accurate sleep monitoring, breathing training, heart rate monitoring, 10 multi-sports modes, sleep reminder female menstruation and ovulation, body temperature measurement, exercise measurement (step/calories/distance, alarm clock, information reminder, wrist turn bright screen, remote photography, music control, sedentary reminder, stopwatch function, Main Features: App OS: IOS 8.0 and above / Android 4.4 and above WeChat Motion Sync CPU Chip: GR5515 Sensor: 3D Sensor PPG Sensor: Everlight PD70 Vibration: Yes Waterproof: IP68 Screen Size and Type: TFT Screen 1.32" full color Bluetooth version: BLE5.1Sync Material: Tempered Gpass + stainless steel + zinc alloy + PTP Battery: Li Battery Capacity: 200 mAh Standby time: 10 days Charging time: 2.0 hours APP Name: HBand Watch language support: Chinese, English, Japanese, French, German, Italy, Spain, Russia, Portugal APP Language: Chinese, Traditional, English, Japanese, German, Russian, Italian, French, Spanish, Portuguese, Vietnamese, Korean, Farsi (Arabic) Packaging: Smart watch *1 Charging *1 Operating instructions *1