This app is not a medical device.Data obtained during the use of this app is for reference only, and should not be used for clinical diagnosis,medical research, diagnostic, ortreatment purposes.How to charge the watch?1. Take out the charging cable in the product box;2. Connect the charging cable to the watch;3. Plug the charging cable into the power source;4.Please charge the watch more than 3 hours first time.The seller of this product is not affiliated with, sponsored, licensed or endorsed by any Bluetooth branded entity or service.â[Enjoy the Convenience of Voice Assistants]- Enjoy the convenience that voice assistant gives you, so you can make calls, play music, set alarms, ask about the weather and so on through voice assistant while you are driving or exercising, smart watch for women voice assistant brings more convenience to your life. Make your life more wonderful!â[Health Monitoring]- Track your health and fitness goals with the smart watches for men womem fitness & activity tracker. The fitness watch can monitor your heart rate, blood oxygen, and sleep tracking in real-time. The smartwatch monitors your sleep on different modes, lightand deep sleep. All recorded data can be synced to your phone for analysis, providing valuable insights into your health and facilitating lifestyle adjustments.â[Multifunctional & Broad Compatibility]- Smart watch for android iOS phone has many features likeweather forecasts, stopwatch, timer, music control/ play, adjustable brightness, find phone/ watch, breathing training, smart alarm clock, camera control, women health, sedentary reminder, ect. It can support android and iOS phones