New Arrival HealthTree Ring Pulse Oximeter JKS50G

1% Accuracy: Newly upgraded chips to provide better accuracy. Accuracy is improved to 1%.  High-quality Material: Made of high-quality low-sensitive silicone, soft and breathable. It is suitable for fingertip 1.57-2.36 inch. Please select the right size fingers to wear. Note: Please wear 50G pulse oximeter ring at the fingertips instead of the bones. USB-C Charging: Included USB-C charging cable. It can be used continuously for 15 hours after full charge. Easy to Use: Super simple operation, even seniors can master it effortlessly. Just turn on your phone’s Bluetooth and open the app—50G continuous pulse oximeter fingertip will automatically connect and start working. Features a rotatable display for both left and right-handed wear. Feature-rich App at No Cost: The app supports multi-user data storage, report downloads, and alerts for abnormal readings.  Abnormal Data Alerts: When abnormal are detected, the app will beep with audible alerts and flag them in your data reports. The aler