Just purchased, buttery doesn’t last more than 7 hours with full charge, is that Normal? And it takes long time to be fully charged.

I had decreased battery life until I started using a CPAP device and my blood oxygen saturation improved. I believe the constant alarming of the device, which is a built in vibration, was consuming the battery much more quickly. If you have frequent drops that are setting off the alarm you could try setting the vibration to a lower strength, decreasing the value at which the alarm goes off or getting treatment.

What does 2 drops mean

You haves dropped below the percentage of oxygen twice in the time period.

What is the % accuracy (+/- 2)?

I have 2 of these Wellue O2Ring SPO2 monitor/recorders and I have checked both against the SPO2 monitor at my doctors office. The both match the SPO2 monitor at my doctors office exactly. I wear one on each hand, because I always end up sleeping on one arm or the other, and cutting off the blood supply to that arm. I want the alarm to wake me up, before I cause too much damage to the extremity that gets cut off form fresh blood and oxygen.

Comfotable? Should I be concerned by the obvious misspelling on this page? Is the product legit?

I went to read the link again to see the misspelled word, but could not find it. They might have corrected it already. Anyway, These are definitely legit, and the customer service from Wellue is fantastic. They want all happy customers. If you ever have any issues with anything they sell, just send them an email, and they make every reasonable effort to make you happy. I would say they go above and beyond reasonable efforts to make the customers happy. I have two of these O2 Ring sensors, because I tend to pinch off the blood flow to one arm or the other, while rolling around in my sleep. I wear one on each hand, so it will wake me up, before the loss of blood flow does too much damage to my tissues. I also have had mild sleep apnea my entire life. These rings help me understand which foods and activities make that apnea worse or better. I have never been more than 5% over my optimal weight level, but losing that 5% made a big difference in the apnea. Cut out the sugars. Carbs from healthy veggies are good, but the simple sugars that they add to all prepackaged foods (garbage) are very bad for the health. So are all the seed oils. Stop eating anything that comes in a bag, a box, or a can, with the exception of frozen organic veggies. Eat real food

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🔔 Stay ahead of your health curve with smart, stylish oxygen tracking!

EFFORTLESS WEAR USE - Patented soft silicone ring fits comfortably and activates automatically when worn—perfect for busy professionals.
BLUETOOTH ENABLED SYNC - Seamlessly upload and review your health data on iOS and Android devices with Bluetooth 4.0 BLE connectivity.
SMART VIBRATION ALERTS - Instant vibration reminders on abnormal O2 or heart rate levels keep you proactively informed.
INSIGHTFUL DATA REPORTS - Access unlimited, shareable PDF & CSV trend reports via free app and PC software for deep health insights.
ALL DAY VITAL MONITORING - Track your blood oxygen & pulse rate seamlessly for up to 16 hours without interruption.

The WellueO2Ring is a rechargeable, Bluetooth-enabled pulse oximeter designed for continuous 16-hour monitoring of blood oxygen saturation and pulse rate. Featuring smart vibration alerts for abnormal readings, it automatically syncs data to a free app and PC software offering detailed, shareable reports. Its lightweight, patented soft silicone ring ensures comfortable all-day wear, making it ideal for active professionals seeking proactive health insights outside of medical settings.

WellueO2Ring Oxygen Monitor with Vibration Reminder -Bluetooth O2 Pulse Oximeter Rechargeable, Continuous Recording of SpO2 & PR, Blood Oxygen Saturation Tracker with Free APP & PC Reports

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