Wellue O2Ring Oxygen Monitor with Vibration Reminder -Bluetooth O2 Pulse Oximeter Rechargeable, Continuous Recording of SpO2 & PR, Blood Oxygen Saturation Tracker with Free APP & PC Reports

An Impressively Improved Sleep Monitoring Device
I’m an experienced user of the Wellue wristband-ring system and have been generally quite happy with its performance, but I’m pretty impressed by some of the design changes in Wellue’s “02 Insight Ring.” First, ease of use: the old system required attaching both the hard drive wristband (to your wrist) and then inserting the ring’s chord into the wristband hard drive. The O2 Ring reduces that slightly cumbersome procedure to one step – simply slip on the ring! In other words, they’ve collapsed the ring and wristband into one device.This design change has more than a simplifying effect, I suspect. Perhaps more importantly, it reduces by half the wear at the critical hard drive connection. Anything that reduces the number of times you need to insert a USB-type connection is a good thing. Eventually, as anyone who works with computers knows, those kinds of connections are generally the first problem you encounter as the connection tends to grow weaker with use and usually at some point simply dies. The only connection you make now is from the O2 Ring to a charging device or your computer. I just hook it up to my computer and leave it attached to recharge from my computer, reducing the connection process further.Another design improvement is the display sensor. In the wristband-ring design, the wristband display of oxygen levels and pulse rate is motion-triggered: that is, a shake of your wrist will cause the display to light up. Not a bad thing, but that means the display is being constantly triggered as you move around at night. I’m not sure this causes wear and tear on the unit, but it surely shortens the battery life. The 02 Ring, however, isn’t motion-sensitive: you need to “swipe” the ring surface to summon the display. Kind of like how you open an old Kindle. So you only see the display when you choose to.Yet another improvement I noticed was in the ring band itself. In the original wristband-ring configuration the elastic rubber ring has a tendency to wear and break at some point. In the 02 Ring model, the elastic rubber ring has been reinforced! Excellent preventative measure, in my opinion.Otherwise, the function remains the same. Just plug the O2 Ring into your computer or use a phone app (I use my computer) to get a reading on your night’s sleep. It is totally compatible with the simple and nice function of the software. My computer already had the software from the wristband-ring model, and it worked perfectly with the new 02 Ring. I don’t actually remember installing the software – other than that it was easy to do. The Ring’s brightness, display, and other features can be adjusted to your taste (see manual). I have yet to read the manual; the Ring is so intuitive that I was able to easily use it right out of the box!Though I’m not a “medical professional,” I’ve devoted considerable time into investigating methods of improving my health, and what’s more basic to health than sleep? If you snore or wake up feeling headaches or fatigue, you owe it to yourself to monitor what your body does while you sleep. The Wellue system gives you a clear picture of your heart rate, blood oxygen levels, and motion throughout the night. It takes the guesswork out of how you slept. Large plunges in oxygen levels, for example, can spell major problems – and could lead, according to current medical lectures, to stroke and heart disease on top of just not feeling rested and ready to take on your day.I was able to greatly improve my sleep with the Wellue units when combining their information with oxygen therapy at night. For me, Wellue + oxygen concentration machine has made my nights enjoyable again, and I usually wake up feeling refreshed, my brain clear, and ready to take on the day. I wish the same for all of your who suffer from sleep issues.

It is very effective, the app could be better.
I recently got some suspicions that I may have some sleep apnea going on, or at least some snoring. Wanting to be proactive, I ordered this to wear at night after I received a very similar looking device from a home sleep study company.This unit does seem to be quite accurate, quite easy to use, easily lasts all night on a single charge. The download feature is a little unusual and the app feels a little different design language than what I would consider a “best in class” app funcitonality. It does fully integrate into Apple Health.I would buy it again.

Good Device, Poor Analysis Software and Failed After 16 Months
I like the Wellue O2 Ring for its comfort to wear vs oximeters like the Contec CMS50I wrist oximeter and others. My biggest and most disappointing issue with the O2 ring is the software, both the Android app and O2 Insight Pro are awful by comparison to the Contec SpO2 Assistant software that comes with CMS50I. I have been trying to figure out how to convert the Wellue file format or csv to SpO2 files without success as the SpO2 file format is not documented. SpO2 Assistant allows me to manipulate both the analysis and the display parameters for SpO2, pulse and the perfusion index and has various useful summary reports from which to choose.Both oximeters seem to be equally accurate. The biggest plus for the O2 Ring is it is the most comfortable recording oximeter I have found to wear while sleeping, and it has a motion sensor which, with better software assuming proper sampling techniques, would help identify respiratory effort related arousals (RERAs). Unfortunately the Ring data output is of only of marginal use to me. People using a CPAP machines could download the Wellue files into OSCAR software available on the Apnea Board website which would allow them to see the oximetry in a more useful format and in conjunction with the data from their CPAP, but even OSCAR is not as robust as the SpO2 software for oximetry analysis. The biggest pluses for the CMS50I are the software, as well as the perfusion index and bluetooth capabilities, the biggest negative is comfort. The professional overnight sleep lab study software, which I have used in my neurologist’s office, is even better than SpO2 Assistant and would be my model for building software for the O2 Ring.Update: Ring failed after 16 months, downgraded to 3 stars – see photo

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