Continuous Wrist Pulse Oximeter, Blood Oxygen Saturation Monitor with Smart Beep, Bluetooth, 72 Hours Endurance Tracking SpO2 and Pulse Rate, PC Software & APP

This continuous wrist pulse oximeter provides second by second O2% allowing me to use the ViHealth App and the SleepHQ App to see what happens to my O2% during my sleep apneas. My Apple watch only samples my O2% every minute or so rendering it incapable of helping me understand what is happening during an apneas. You need the continuous second by second analysis. I plot each breath taken with my ResMed C-Pap machine along with my O2% from my wrist pulse oximeter using the ViHealth and SleepHQ Apps. I am able to see each apnea and what happens to my O2% when I awake each morning. Using this information, I have significantly reduced my apneas and I know exactly what is going on with my O2% during my sleep. I also use this device for tracking my O2% when walking up a steep hill at a fast pace. I set up my device to show continuously on the display so I know when the O2% when walking and I plot it out along with my heart rate on the ViHealth App. I am so happy with this device. It does everything I was looking for and is very accurate. I like the wrist unit combined with the thumb sensor. It is easy to use and easy to charge. Carl Bullock

I have severe sleep apnea and use a BiPAP with high pressure settings because of frequent blood oxygen desaturations. My doctor advised that I monitor SpO2 levels during sleep and keep an ongoing record of the results. I previously used the Wellue O2 ring for this purpose. The advantage of this particular ring is that it syncs to the SleepHQ application I use to monitor my BiPAP statistics. Unfortunately, I have gone through two of these expensive rings because of durability issues. The first failed when the rubber ring band broke and the second simply died. Both problems occurred shortly after the one year warranty expired. I purchased the Wrist Oximeter primarily because the ring fingerpiece can be replaced for a reasonable price without having to buy and entire new unit. I find this wrist oximeter to be easy to use, comfortable to wear, and the display is very clear and legible. I download the results on both the iPhone software (which occurs automatically as soon as the device is removed) and on the pc software (which occurs when I plug the device into my computer for charging). I appreciate the vibrating alarm which wakes me when my SpO2 drops to a preset level so I can make adjustments to my CPAP mask. The vibrating alarm also does not disturb my wife. While the software does not have the ability to sync the results to the SleepHQ program, it does sync to OSCAR, a similar program. Thus, I am still able to monitor my BiPAP therapy and the effects of apnea events on my SpO2. I do have some negative issues. First, I find it difficult to attach the watch band on my wrist because of arthritic fingers. Second, the software only records events on a daily basis. It would be helpful if it would include weekly, monthly, yearly, and custom periods of results so that trends could be monitored and provided to physicians. Third, I worry about durability issues like I had with the Wellue ring and concerns that this device will also fail shortly after the one year warranty expires.

I'm a borderline sleep apnea person and have used their previous model for almost five years before the lithium battery died. I have used this new model for about six months without any problems. It is easy to wear and the software app works very well. I showed my doctor at my last physical and he was impressed with the daily graph results. I like the variable vibration alert device and the variable settings on the oxygen and pulse levels. I set mine at 80% on oxygen rate and 50 pps heart rate. I rarely get a notification below these rates. It takes less than one to two hours to charge the larger lithium battery that lasts much longer than their previous model at about four days depending on how long you wear it each night. Overall, I'm happy with this model and very easy to use! One thing I learned is too keep my weight and BMI down which has less sleep apnea problems.

Unit performs as expected. Bright, clear display for easy reading. Display shuts off when in use with probe. Button push turns display on for about a minute. Button is on side of wrist module, so can't easily trigger it while sleeping. Vibration alerts to O2 deficit (adjustable). Strap on wrist unit is a little challenge to latch, but it holds fine. The remote sensor slides over finger to wear like a ring. Relatively small for a thumb, but fits fine on my fingers. Self-tensioning silicone design. Able to hold continuous data; can be downloaded for reports or import to OSCAR. App is a little klunky for directing data, but it integrates to OSCAR fine. Quality was really a problem with this item. I bought one just before Christmas and it failed (wouldn't turn on) within two months. I returned it and got a replacement from Amazon (the manufacturer never responded to my email). The second unit just failed, after only about 7 weeks. I contacted Amazon and they were kind enough to refund my purchase because I was afraid to just do another replacement. Very disappointing, since so many aspects of the device were attractive. In the end, if it doesn't last, it isn't worth it.

Positives - The device seems to be well made and of good quality. It records and provides the data very well. The data can be exported in either csv or pdf format. Negatives - Largest 'annoyance' is the current session can only be reviewed on the smart device and then only the two devices remain close to each other. Full review of an hours-long recording can only be made after the recording has been stopped and the data downloaded. The rest of the negatives are mostly regard the documentation. The use of English is very poor which makes reading the instructions etc. difficult at times, but generally distracting. Incomplete instructions regard the use of the single button on the wrist unit. Some icons appear on the wrist unit display that are not described in the literature. No URLs provided for the necessary software - smart device and/or PC. User has to 'find' user manuals on the web for updated information. Nowhere does it say that settings on the mobile app are one-time only i.e. vibration warnings and/or alarms, whereas settings on the PC app are permanent unless changed by the user.

I was looking for a replacement for my O2 ring that was easier to read for over-50 users, had a longer battery life, and was more comfortable. This covered all three with a much larger display, 72 hour battery life, and a slightly larger ring so your thumb's not getting strangled. The band is easy to clip on with studs that go thru the rubber band. It stays attached, but is still easy to remove when you want to. The USB connection is an in-between size, larger than micro USB, but larger than mini USB. This means you'll need to keep track of the included charging cable. For those of us that upload data to CPAP tracking software or website, good news! This uses the ViHealth app (for Apple or Android) or the O2 Insight Pro (for PC or Mac) to extract the data to sync with your CPAP machine's data. Yay! I didn't have to learn new software!

Only issue I had was that the app for PC is / was worthless. That being said, the app for Android works great, so don't bother with the PC version. It's a pure waste of time. Great for anyone out there with sleep issues. It identifies when you are having problems in the night and will even wake you up (if you set it to) if O2 and/or pulse gets below/above a set threshold. You can share a pdf or xml document after the you shut down from the app (see above comment.) to email or other similar applications. It renders a detailed rundown of the entire period covered with O2 levels, pulse rate and movement.

Update (November 2023): I ordered a second unit after I returned the first. Unfortunately, it had all the same issues, and I returned again. I then bought a secondhand/refurbished hospital-grade Nonin finger probe from a well-rated seller off ebay. It's very accurate, but of course it doesn't offer the option of continuous wear. If only Nonin would develop a wearable technology like this one. We can hope someday. Original Review: Summery: Not sure if I simply got a bad unit, or if this is just how these devices are. I am going to try a second unit after returning this one because it is really comfortable to wear (I hate the feel of silicone wrist bands, but this one for some reason I don't even notice), the app is super easy to use and set up on an iphone, and the report generated after a session is well-designed and easy to read. These good elements are why I gave it the two stars you see. If it actually reported accurately and didn't stall out it would be a five-star device, and if the next unit does function properly I will change my review. Detailed review: I have an issue with my heart-rate increasing dramatically while my 02 simultaneously drops, sometimes to below 87, when I move around doing very light activities such as walking across the room after sitting or lying down, or bending over to pick something up. I know the approximate numbers that result from that because of the clip-style finger monitors I use. They are terrible for using while doing anything else while noting longer-term readings, though, so I bought this device. The first attached photo shows one of the bad readings. This is one of MANY. To be clear, the finger clip monitor reads O2 at 100%, heart rate 82. Compare that to the reading on the wrist unit. I cannot trust this data. The second photo shows an extended reading as reported in the ViHealth app. See the extended dip on the right, reporting below 90%? That was while I was laying down and being very still, when, aside from an occasional normal very quick dip, my O2 (and heart-rate too) are almost always very normal, so I knew it probably wasn't correct. I tested with my finger clip monitors (both of them) and it was indeed stalled out on this device, just coasting along on those two very incorrect numbers, both FAR too low. I briefly removed the finger probe and put it back on, and the numbers increased to similar readings as the finger clips, which is basically forcing the user to manually reset it after it stalls. I cannot trust the data. Regarding the heart-rate reporting issue: When I am moving around doing normal activities - which is when my heart-rate goes way up, often 150 or higher and then lingers there until I sit or lay down - and the finger clips and my manually taking and calculating my BPM (pressing on neck with fingers and timing beats with stopwatch for 20 seconds and multiplying that number by 3) very accurately reflect that increase, this wrist monitor is very, very off, between 25 and 50 (!) points too low. Not useful. It reports somewhat more correctly when I am sitting or lying down, being only 10 to 25 points too low. Because of these issues, I would recommend anyone who gets this device also get a well-rated finger clip device to regularly test the accuracy of this device (and I mean well-rated somewhere other than Amazon, google it and find a trusted review source) . If I didn't have secondary units to compare the numbers I'd have no idea how incorrect it is.