EMAYSleep Oxygen Monitor with Built-in Recording Capability | Track Continuous Blood Oxygen Levels & Pulse Rate Overnight | Provides Sleep Report & Raw Data

Bought this in August 2022, and it has traveled with me, flown long distances at altitude and monitored my sleep both at home and away.Turns out I could finally prove to myself and my Doc that I do have an actual issue with altitude that needed to be addressed and the continued monitoring of sleep gives both my Doc and I piece of mind.It’s really easy to use, and has great memory if you don’t have a chance to download it every day. It’s become a regular part of my monitoring so when I recently misplaced my original, I just purchased a second device (May 2025) so I could still monitor everything until the first one reappears or as a backup to that one. (Since the second one has been bought, of course the first one will reappear very shortly…that’s how it always works!)I’m glad to have a second oximeter though, I never will have to worry about reports for the Doc and the ability to download and share the data compared to other devices is beyond amazing, you can record data for 5 minutes or 5 hours, or as long as you keep wearing it. It tracks everything and you can have peace of mind knowing exactly what is going on.Definitely worth the cost, and honestly have seen more costly devices with less ability to track much less download or share your data with your health care professional.There is a reason I bought an identical device, I was so impressed with the quality of the first oximeter that I wanted to stick with what works.Both the oximeters were purchased not received as gifts or in exchange for anything. Definitely five stars, an excellent oximeter, I wish more were like these and able to record over time.

EMAY Oximeter EMO-80:I have used this for nine nights and find that it reliable in use and helpful in understanding pulse and blood oxygen levels in tables and graphs as well as some analytics useful to me. Links easily using Bluetooth to my iPhone16. Do read the short pamphlet/manual as the device is small and lightweight which limits the number of control buttons to one. If you are having issues with the device the first step is to re-read the manual as it is most likely user error (that would be me). The device stays on well overnight as it clips firmly to the finger to get good readings and there is a small rubber strap to help keep it from slipping off at night. The rubber strap need not be overly tight to accomplish its job, so no need to strangle your finger. The two sets of included batteries seem to last about 5 nights each, I have not tried rechargeable batteries but hear they will last fewer nights. There is a battery level gauge on the screen to assist. The screen is bright and clear and fortunately it goes dark after perhaps 1-2 minutes thus no sleep interruption. I am using it to monitor pulse and oxygen levels to help understand the frequency (pulse spikes) and possible cause (O2 levels?) of leg cramps. Overall, I am very happy with it. The device does not replace a full medical study, it is for information.

This device gives valuable and accurate information. My dental provider shared his with me several times; and I decided that I wanted the value and convenience of having my own. Now I take a reading once or twice a week. I patiently used it several times at the beginning until the routine had become second nature. Now I am comforted by the fact that I have immediate access to prompt summaries or detailed analyses--as I wish. I was pleased at how easy it was to upload the information. I like to use the optional finger strap, so that I do not worry in bed about if it has slipped off or not.

I wrote the review below, got a replacement oximeter from Amazon, and still had problems with it. I was really intensely frustrated and angry at having wasted my money (I thought), tried twice, had ongoing problems.... Hence the review.HOWEVER, I communicated a question to their support department, and that led to an exchange with them. I didn't expect them to be so responsive. But they were. I raised every single issue below, and they answered them all.In one or two cases, the problem I raised was on my end; I did something wrong.In another case, the problem was because I had not understood something correctly. I think most people would have misunderstood just as I did, so I'm not going to "own" that one. They're just going to have to be a bit clearer in their instructions.In a couple of cases, the problem is/was on their end. And they were receptive to my very specific criticisms, discussing one or two with their engineers and computer gurus, and promising that they were going to fix it.This wasn't a "brush-off" response from them. This was a sustained conversation with evidence that they were taking my issues seriously. A soft answer turns away wrath, the Bible says, and the folks at Emay have done exactly that. They were open and accepting of my irritation, helped me understand what I was missing, and owned their "share" of the issues I raised.The second oximeter is working much better, now that a few issues have been ironed out. Between having a functioning device and receiving the company's excellent service response, I'm having a harder and harder time NOT liking this product!I've raised the number of stars to 4 (would give 4.5, if it were possible), and will raise it to 5 once they've made the adjustments we've discussed.-----------------------------------I want to like this product, but it's getting harder and harder.First, the downloaded app calculated my age incorrectly. I had to claim a fake birth year in order to get the app to reflect my actual age. This is such a small thing to write code for, isn't it? Why can't you write the code so that 2019 (when I received the first oximeter from you) minus 1953 (my birth year) equals 66? I had to pretend that my birth year was 1954, so that my age would be reflected properly.While you're at it, why do you only have the year? Now, in 2020, I'm technically 67, according to your app. Yet in truth I won't be that age for another 6 months. This is a real deficiency in your product.Second, the device doesn't stay paired to my iPhone and the necessary app. Getting it to re-link is often a struggle. I hate having to fight the app/oximeter every time I use them, not knowing if they're going to pair readily (and sometimes they do) or claim not to see each other---even though YES, my bluetooth *is* on!Third, the second device I received from the company failed to synchronize its internal date/time to the actual date/time via the app. So my first three-hour reading has the wrong date info on it.Fourth, if the wrong date or time gets put on a reading, you can't go in and edit the result so that it reflects the correct date/time.Fifth, the reading can be sent out as a PDF file. Which is nice. I have done this, and the file crashes both Adobe Acrobat Reader as well as Adobe Acrobat Professional. Something about the way it's sent out is faulty.Sixth, the first oximeter they sent me was defective. It would stop recording for no reason. Then it got "stuck" and wouldn't record at all. New batteries, turning allllll devices (iPhone, app, oximeter) off and then rebooting...nothing worked. I now have a replacement in hand, but I'm not certain it's going to function correctly, either.Seventh, the new, replacement oximeter is a different model than the first one--a few small-but-nice features that the first one had, this one doesn't have.I like the heart rate print-out. I like the fact that it records a measurement every second. I like that I can specify my own cut-off points for too-high or too-low. I like the fact that the records can be shared with the iPhone's "Health" app.But there are too many glitches in the oximeter and the app to make this a product I'd recommend to anyone.Further problems with the Emay pulse oximeter (second device, having sent the first one back for a replacement):1. Even though the device IS connected to my phone’s Bluetooth, the Emay app says it cannot find my device in order to tell me how much memory time I have left on it.2. When I turned on the device so that the Emay app could read the memory time left, the device said “Version 1.1” and then “Uploading.” However: (1) the app was not, in fact, uploading anything, and (2) the device is stuck on “Uploading” and will not allow me to stop the supposed upload nor even turn it off. I have to take the batteries out to get it to shut off.3. The numerical read-outs of the device and the graph do not match well on the heart rate data. The read-out may say my heart rate was 55, but the graph line barely strikes below the “60” mark and is not anywhere near the “55” mark.4. The O2 sat data and the heart rate data reflected in the Emay app are not exported to my iPhone’s Health app “accurately” – assuming that they are recorded accurately by the device itself! While the Emay app’s upload of my O2 and HR information from last night reveal numerous and lengthy periods of O2 sats dipping as low as 85%, when that same minute-by-minute data set is exported to the Health app, there isn’t a reading below 92%!5. The Emay app gives you two options for preserving the report it generates. One is to save it as an image; the other is to send it as a PDF. (As I’ve already reported, their PDF files crash both Adobe Acrobat Reader and Acrobat Professional.) Once you’ve decided to send the Emay report to yourself as a PDF, you cannot go back and ALSO choose to save it as an image. I wanted to see what I’d get with an image rather than the buggy PDF, but found that I couldn’t because the option was lost to me once I’d chosen the PDF option.