WellueO2Ring Pulse Oximter, Bluetooth SPO2 Blood Oxygen Saturation Monitor - Wearable O2 Ring Sensor with Vibration Reminder, Free APP & PC Report, Rechargeable

Performs well, easy to use, has both phone app and PC app. The data can be loaded into OSCAR (Open Source CPAP Analysis Reporter). For me, it is less noticeable than the rubber cup finger sensors with a separate wrist component. I started with one of those because it was cheaper, and if you only need it for a short time or very occasional use, that style might be fine. But, I use it every night.It does seem to be a bit on the small side. My hands are men's med/lg, I'd say. I usually wear it on my ring finger, sometimes pinky. But, the band is rubber, so I can get it on my other fingers. My concern would be if you are a big guy with large hands you may be limited to your pinkies.I've been very satisfied with my purchase and would buy it again.

I've had cheaper oximeters but this one is better and worth it! Easy to use and downloads data to both a cell phone app and to a computer program for drilling down into oxygen, pulse and movement. I combine it with a sleepgpt app and it tells me much. My use is for sleep apnea but there are other uses too. Exercise, pilots, smokers. You can get all of the information that you need for a sleep study without the stay in a strange place and save money, if your doctor and insurance company cooperate.

Ring works great--appears to have one of the best accuracies among commercially available oximeters and the aoftware is helpful and user-friendly. However, suboptimal product support: I bought a 2nd ring after the 1st one died early. The 2nd ring stopped working (after a few months) and then contacted customer service, which I rarely do. Customer service asked me to jump through hoops to document a warranty claim. After I did all that, they stopped answering emails.UPDATE: Customer service now promises to replace the ring after seeing my review, which is appreciated; I assume the new ring will eventually arrive. This would be a 5 star review if proiduct support was better.

I recently started using the Wellue O2 Ring, and I can honestly say it has transformed my sleep experience! This remarkable device seamlessly syncs with my CPAP machine, making monitoring my oxygen levels during the night easier than ever. The low-level alert feature is a game changer; it gently wakes me up when necessary, ensuring I stay safe and comfortable throughout the night. I can finally rest easy knowing that my well-being is being actively monitored while I sleep!What I love most about the Wellue O2 Ring is how incredibly user-friendly it is. It fits snugly and doesn’t interfere with my sleep at all, allowing me to drift off without any distractions. The combination of its effectiveness and comfort has truly exceeded my expectations, and I wholeheartedly recommend this product to anyone in need of reliable oxygen monitoring. If you're looking for a solution that prioritizes your health and enhances your sleep, look no further than the Wellue O2 Ring!

I've bought 4 of these rings over the past 3 years for my mother who has a pulmonary embolism and benefits from continuous O2 monitoring. First 2 worked great for about a year and didn't stop working, just broke at the small rubber connection piece at the bottom. Acceptable wear and tear in my opinion given my mother wears them all day while gardening etc. She puts a lot of War and tear on them. The third started giving crazy readings within 2 weeks. Basically double whatever her actual heart rate was. I contacted customer service at Wellue and have been getting the runaround for weeks. "Try wetting your finger" "Wear it on your thumb" etc. They have a video of it showing 124 heart rate (pulse) while the finger next to shows 62 on a fingertip monitor. Now they've been radio silent for a month. Fourth ring works fine, but I guess I won't be getting a refund on the 3rd.

This product has worked without flaw for over 6 months of nightly use. Easy to adjust available settings.

This device may work well for some depending on what you want to use it for. It did not work out for me. Here are some pros and cons to help you make your decision:Pros:1. Seems accurate (as compared to another pulse-oximeter I have) as long as you hold relatively still.2. Data logging is very powerful and relatively easy to use. I wanted a pulse-oximeter for doing sleep studies and understanding how O2 levels fluctuate doing daily activities.3. Appears well constructed.4. Outwardly a nice design and easy to use.5. The PC desktop app is good and easy to use.6. Despite negative reviews for the phone app, it does have some good features, if you create an account.Cons:1. The big one. There appears to be only one size and it is too small, at least for me. Strangles finger if worn very long even when worn on pinky (I have average sized hands for an adult male).2. Also important (to me). If you use it in motion, like on a walk or just mild activity around the house, it will read wrong frequently including setting off the alarm at below 88% O2. The data logger tracks SPO2%, Pulse Rate and "Motion". So it is clear that motion is an important parameter. I think I read somewhere about how these are not good for measuring during exercise so this may be something that pulse-oximeters don't do well in general.3. To get the good stuff out of the phone app (history/logged data), you must sign-up with an account.4. The data takes a long time to refresh in the phone app via Bluetooth. So if you want instant gratification, plug in to the PC and use that app.5. During overnight sleep study, the data logger sometimes randomly starts a new file (two csv files). Then I had to manually merge them in Excel to get a full graph. Not a huge deal but annoying.Things to know:1. There are two ways to get data out of the unit. One is via the phone app and Bluetooth. You share the csv file with yourself via email in the app. You must sign up for an account for this to work. As noted, the data can take a while to update on the phone. The other is a USB cable connection to your computer and the O2 Insight Pro app on your PC. There is an Export to CSV button.2. When it is plugged into the PC it displays charging. When the desktop app is run, the unit displays two opposite facing arrows as a symbol of connection. When you close the app, the connection symbol stays so I was not sure if it was still charging. After some experimentation I determined that it was charging.3. The data file always has large numbers at end from the time you remove your finger to when it stops logging. These are numbers that are out of range for the sensor. If you are going to plot the data in Excel, you need to remove these numbers. This could have been listed in the cons as seems they could write code around it. Not a huge deal.4. It logs data 4 times per second. This may be a pro to some and con to others. But since the response time of these devices is no that fast it just causes larger data files to work with than needed. Not a big deal.5. If you use the USB connection to your PC, then export the CSV you get a nice file name format that contains the year, month and day like a digital photo does. If you transfer the data to your phone via Bluetooth and email it to yourself, you get a random series of numbers in the file name. Also, the data format of the two files is completely different. The PC file includes an AM/PM type time stamp and two additional data columns. The phone app uses military time and the Day/Month/Year format found more in Europe.