I gave it only four stars because I could not figure out how to wear it on my right hand and be able to read the display and because it is not capable of connecting to an iPhone and iPad at the same time. Other than that, it so works beautifully. When the next version of iPadOS comes out, it will have the Health app, and that will be my primary for collecting the data as the app looks a lot better on the iPad. But it has shown that my Apple Watch is reading at times as much as 4 points higher, as it does when I am at the doctor’s office, and they take my SpO₂. I have yet to validate it against the measurements taken at the doctor’s office, but I have an appointment soon where I will be able to do that. I also would like a 24/7 model that does not restrict the use of my fingers. Perhaps a wrist model that is a bit larger to accommodate 24/7 use.EDIT1: After installing iPadOS 17, I expected Vihealth to send it's data to the Heath app. After all, it is the one place all of my health metrics from all of my devices, including non-Apple devices, send their data. As a result, I have dropped my reading from foe stars to three. It appears that they changed the ability to store the data as it is classified as “inactive” in the list of data sources for SpO₂.

This app is pretty basic, and by itself not very useful. So I was glad when they finally added Apple Health integration.However whatever logic is used to determine when a particular session has copied over to Apple health is either broken or needs more thought. I frequently have whole nights worth of data duplicated in Apple health. I can tell it’s duplicated data because each copy will have a separate “date added” time stamp but it’s clearly the same data. It seems that at certain times (either when a session starts or when it ends) the app will sync the most recent session over, but at other times it will sync ALL sessions. I have a lot of sessions stores within the app from before Apple health integration was added, about a years worth. I’m not about to go and try to sort it out manually, nor should I need to.It would be nice if this were fixed, or at least explained. My phone reports Health to using 4.7GB of storage which seems quite excessive, and I believe this app may be the culprit.

I was recently diagnosed with Afib with RVR. They had to shock my heart back to sinus rhythm AED pads. I’ve been on medication for over 6 months now to keep it under control. My heart appears healthy and normal to doctors. My young age has led my electrocardiophysiologist to suspect sleep apnea. A sleep study confirmed that’s most likely the case. Couple that with changing sleep rhythms of a graveyard work shift and drinking... well.. health issues can arise. I’ve quit drinking... mostly. And I’ve been using fancy gadgets like this O2 monitor and app to keep track of my events. I’ve been using it for about two months now. Syncs perfectly and works every time(provided I remember to charge it). It’s uncovering some interesting data. It even syncs with the apple health app! My only real gripes are that it doesn’t have an iPad optimized app or, as far as I know, a Mac OS app. It’d also be nice to have ways to export the data or print graphs to present to my doctor. My CPAP has an SD card that allows me to pull detailed data from. I would really like to be able to align the data pulled from the CPAP with the data I get from the O2 monitor. It’s still extremely useful. Just limited in it’s usefulness. 4 stars is fair in my opinion.

And let me emphasize worst! It DOES NOT WORK! I have the baby oximeter for my daughter who gets seizures but after the update, it keeps telling me that it cannot sign me on because I’ve logged out, well I just logged on how is it that I am not logged on?! It wouldn’t let me update the profile and it doesn’t have ANY HISTORY!!! No history of what happened during the previous night at all! It doesn’t download any of the history which is why basically why I got this device so that I can review when she desaturates at night and establish pattern or in case she had a seizure at night and I missed it and now there’s no way to tell!!!! This new version just doesn’t WORK FULL STOP PERIOD!!! This is soo awful please just revert o what it was before. Having a child with disabilities there are so much stuff that I need to do, I just need things to be simple and straight to the point, I have so many different things to worry about my child and I just need an app that works, don’t need bells and whistles just simple effective and to the point and the new update of this app is just the opposite! Who are the developers of this app, they should all be fired because it simply does not work!!!!!