New DYUANETEC Ring D2 Smart Ring The DYUANETEC Ring D2 Smart Ring integrates a variety of cutting-edge innovative technologies. With its lightweight titanium body, it seamlessly fits into your daily life while monitoring your health status around the clock — it accurately tracks sleep, mood fluctuations, exercise data, heart health and stress levels, making every health management process efficient and intuitive. The included charging dock can be used as a power bank for the ring, eliminating your worries about running out of battery during business trips or travels. Important Notes Size Confirmation: Please confirm your correct size before purchasing. Only a properly fitted size can ensure you get the best wearing experience. Data Accuracy: It is recommended to wear the ring continuously. For more accurate data, please wear it consistently for more than one week. Medical Device Disclaimer: The DYUANETEC Ring D2 is not a medical device. Any data generated by its associated app is for reference only and shall not be used in clinical diagnosis, medical research or treatment.