7/24 HR Monitor,Blood Pressure & Blood Oxygen Monitor with All-day Activity Tracking You can monitor your heart rate 24 hours a day, and you can also measure blood pressure and blood oxygen anytime, anywhere. Blood oxygen data can be used to judge whether the body’s metabolic function is good.
https://www.amazon.com/Waterproof-Activity-Pedometer-Smartwatch-E3-Black/dp/B08TTZKX6K