Smart Watch H9 with Health Monitor Touch Screen Smartwatch Bluetooth Call Heart Rate Blood Oxygen Tracker Sports Watch

Instructions for use: Oxygen and sleep monitoring information should not be used for medical or therapeutic purposes-blood pressure, heart rate, oxygen and sleep monitoring are approximate and therefore should not be used for medical or therapeutic purposes. Tattoos can affect the sensor's performance. For proper measurements, use a specialized or high-precision measurement system and consult your doctor. To prevent the watch battery from going dormant, you can restart the watch after receiving it and then fully charge it and try not to drain the watch while wearing it. If the battery goes dormant, you can try charging the watch with your computer's USB port to activate the battery. If you encounter any problems while wearing the watch, don't worry, you can contact us to help you solve the problem while wearing the watch, don't worry, you can contact us to help you solve the problem. Hi~. Dear customers, welcome to my store!. All products are ready stocks, shipment within 24 hours. Bes