EMAY SleepO2 Wrist Pulse Oximeter with Recording Capability | Sleep Pulse Oximeter for Blood Oxygen Saturation Tracking Continuously | Provides Sleep Report and Raw Data

The device arrived well packed. The instructions are clear and well written. For context, I've been using the company's excellent finger pulse oximeter EMO-80 for seven months. It is a fine unit, and I expect the same tech is to be found in this device. I am only switching because, after trying many solutions, I have not found a reliable method to keep it on my finger during sleep! I've tried tape, tiny wedges etc., and finally a rubber band wrapped around it to increase grip. The rubber band generally kept the device on, but after a couple of hours, discomfort would wake me to change fingers. (As well, the EMO-80 is AAA battery powered, and two batteries are good for about two nights. Batteries are cheap these days but...) So finally, I'd had enough and ordered the SleepO2 Wrist Recording Pulse Oximeter. My only regret is that I didn't order it sooner! Another review mentioned annoyance, regarding the sensor and finger mount. Mentioned were discomfort, placement of the sensor, too much pressure on the finger tip, and that the blinking green light signaling the unit is operative (orange for charging) was too bright for the bedroom. First, about the light: I can't even see it, unless I raise the unit and look directly at it. I read the above-mentioned review before I bought the device, and was expecting something way different than what I got. I suppose different folks have different sensitivities to light, but this is about pinhead size, and isn't very bright. I've had no problems whatsoever with it. As well, the duckbill finger mount has been zero problem. I was surprised by how well it does work. Based on appearance, it might be a bit clumsy or awkward. I am an adult male, 6 feet tall, 180 pounds, so imagine my fingers in accordance. The finger easily slips right into the duckbill sensor mount. It isn't too tight or too loose, there's a comfortable pressure on my fingertip, and the sensor placement when using this oximeter seems fine. Basically, it just works. And whichever side you sleep, you won't need to make allowance. I've been surprised that it hasn't awakened me even once! I've become so accustomed that, on waking for a sip of water, I will check to see if it is still on my finger. The battery is charged by USB-3.0, so pretty quick. I haven't clocked charge time at various levels of discharge, but it isn't slow. And anyway, you've got a whole day before using it again! The box it comes in is a nice black cube and is fine for daytime storage. Connecting to the phone to download data is straightforward. Power up the Bluetooth on one device, then on the other. Occasionally, you might have to try syncing twice (It's Bluetooth, after all), but it will connect. With the data transferred to the phone, you can see multiple screens of graphs and information. There are many options for analysis, so if that's your thing, you can totally geek out. Printing the results is straightforward.Basically then, I have no complaints. Oh, wait! I did find the strap a little difficult to fasten, as it has a sort of peg that pops into a hole in the opposing strap. I've developed a technique and it's not so bad now. If you want to track your pulse and/or H02 levels, this is definitely the sweet spot in its price range, maybe even a in a higher one. Aside from the two niggling complaints – charging cable length and somewhat awkward strap fastening – I have no problems, only praise. I'm a fairly serious techie, and that's unusual. The oximeter does what it says it does, unobtrusively, and as far as I can tell, accurately. The readouts from both the finger pulse oximeter and the wrist oximeter are coherent, in that the levels and graphs are consistent. If you're wondering whether to go with the EMO-80 or the SleepO2 Wrist Recording Pulse Oximeter, I would say that if recording during sleep is your aim, definitely go with the wrist oximeter! I do not think you'll be disappointed.

Having no idea what would be considered good or bad, I settled on this device because of the $70 price: the unit arrives packaged in a plastic cube that holds the two pieces, the wrist band; containing the battery and monitor, and the silicone finger sensor.The monitor uses a USB Micro-B to charge the unit and the finger probe has a Micro-B to connect it to the monitor. Maine everyone is different, you might find the cord between the monitor and probe to be to long. Tape will of course work but I was able to take up the slack by either bundling the excess and pushing it between the band and wrist. Lately, I’ve taken to winding the cord around the band near the plug on the monitor before putting it on my wrist it’s only two or three turns for me. This works surprisingly well, eliminating the need for tape or dangling wire that WILL snag on bedding.On the silicone probe where the wire enters is a strain relief and on it is a length of Velcro like material. The first thing I did was pull it open and promptly rip it off. This was not intentional and I was grateful that the end that attaches uses a tape like adhesive so I was able to put it back. Be careful. It’s never come loose again and I’m not a monkey so I don’t yank it any more.The included directions for use are simple to follow. Download the app, enter appropriate data. Connect the monitor by Bluetooth to your phone or tablet.Place monitor on wrist and open the app. (Do not put on finger probe yet), turn on the monitor by holding the button. When the unit led flashes a green led put the finger probe on and secure with Velcro. By that time, the light should have stopped blinking and just show a solid green light. Press connect on the app and give it a second. Your “live display” will show you your stats. Close the app (it does not need to run in the background) and that’s it. When you wake up, do NOT turn off the monitor. Open the app, remove your finger from the probe and wait a second. The light will begin flashing. Press the connect button on the app and the data will download to the app and simultaneously remove that data from the monitor, so if you turn off the monitor before downloading it’s data, you will not have it.The data is easy to read off the app, is shareable, and printable.Battery life is only two nights before you want to recharge, or recharge daily as you prefer, just remember it uses the USB Type B plug.A nice unit for the price.I do worry about replacement probes though. Something to consider.