Wellue O2Ring Continuous Ring Oxygen Monitor

A great oxygen monitor at a great price! – A great oxygen monitor at a great price! I've been using this monitor for a couple of months. The monitor is easy to use, comfortable and reliable. The reports are easy to read and navigate. My only concerns is it would be good to allow an additional vibration to be set for those who want to be woken up BEFORE becoming apnoiec, i.e. at 90%, not 88%.

The other ideal improvements would be streamline the size, and the battery time is only really enough for one full day.

The device is great value.

Very pleased I bought it – I’m not medically trained and am not giving advice about sleep problems but simply telling my story. I was diagnosed with severe obstructive sleep apnoea and have had poor results with CPAP equipment. To try to reduce the number of apnoea events I’m trialling sleeping without CPAP in a more upright position with my head and back elevated to about 50 degrees. I wanted a device to record my overnight oxygen saturation and bought a Wellue O2 ring which is a recording pulse oximeter. I’ve been wearing the O2 ring at night on my index finger and using it for a month now. This device records oxygen saturation (SpO2), pulse rate and motion (movement?). It also has an inbuilt vibration which can trigger when SpO2 drops to a pre-determined level. It can also trigger if pulse rate is outside pre-determined rates. On downloading the data to the Insight O2 Pro program on my laptop I get a 4 or 5 page sleep report showing various readings including an O2 score, the duration where SpO2 is less than 90%, the highest, average and lowest SpO2. If the vibration is triggered (87% oxygen saturation in my case which may indicate an apnoea event) the sleep graph puts up a marker each time. This sleep report can be saved as a PDF file. A data spreadsheet style record can be saved as a CSV file, say to Microsoft Excel or other spreadsheet. This records the SpO2, pulse rate and motion in 4 second intervals. Close examination of this can show oxygen saturation dropping during what I assume is an apnoea event and the triggering of the vibration which appears to trigger breathing and recovery of oxygen levels. This has happened straight or soon after the vibration. In my case I now find 1 or 2 possible apnoea events a night but most nights, no events. Although I suspect the O2 score number and 1 or 2 other parameters in the sleep report may not be accurate I believe the graph in the report accurately shows what the ring has recorded. I think the vibration trigger and the CSV file data can assist in checking if and how often apnoea events occur.