O2 Pulse Oximeter Fingertip, Oxygen Saturation Monitor, Bluetooth Pulse Rate Tracking with App, Continuous Rechargeable O2 Finger Oxygen Meter, 4 * 10 Hrs Built-in Memory, Smart Reminder

This is the second Oximeter I purchased after I had trouble getting the first to sync with my phone reliably. I couldn't be more thrilled with the product! It's comfortable to wear and stays on snugly, even though I'm not a "gentle" sleeper. The syncing process couldn't be simpler and the read-outs show clearly the oxygen levels, pulse rate, and motion. It also delivers a nightly summary of drops over 4% and drops over 3%, oxygen level distribution and pulse rate distribution. It's exactly what I was looking for!

My husband and I both wear our oxymeters on our daily walks. It records our heart rates and blood oxygen saturation and then we can download it to the app on our phones and even export the reports to pdf. Handy little health tool and way cheaper than other options

It’s very light weight on your finger. Low light and the display shuts off after a few seconds. The finger port is snug but not too tight. And best of all it doesn’t look like a weird medical device. I use this to wake me up if my blood oxygen level goes down too low. I have cpap

This device works well! It is comfortable and the collected data transfer easily. I am pleased with it and look forward to its health management.

I purchased this model because it fits tighter toward the end of my finger which is where I was told I would get the most reliable O2 readings. However, the O2 vibration alert did not function, even when there were many times the O2 level dropped below the alarm setting. I returned the first device for a replacement and the second one had the same problem. I verified through emails with Wellue that I was using the correct app and setup procedure before giving up and returning the second one for a refund.

Great pulse ox device that gives a minute by minute breakdown of pulse ox levels. Great for checking on sleep apnea. Only complaint is it is a little bit tight on finger so if you have big fingers it might not work for you.

The main application for a datalogging pulse oximeter for most individuals would be to give a general idea of how a treatment device affects the Apnea-Hypopnia Index. This is defined by most sources as the sum total of desaturation events divided by the total hours of sleep. This device logs a wealth of data to track desaturation events over a time interval. The ambiguity in interpretation arises when one attempts to add up the number of events. The datalogging function lists the number of drops > 3% and drops > 4%. Mathematically speaking, the number of drops > 4% could be interpreted as a subset of drops > 3%. If one group was defined as > 3% but <= 4%, and the other > 4%, they would clearly be counted separately and therefore added together. Furthermore, on the History Page of the app, the number of drops corresponds to the number of drops > 4%, not the total number of drops in both ranges. I reached out to the company’s customer support email three times, asking for clarification on how to interpret the above data. The only response I received appeared to be a one-time automated response asking for an explanation of what I thought was a defect in the device. The device is not defective, but how to interpret the data remains ambiguous. A simple clarification would have made the device more useful, but that was not forthcoming. Update- The day that the above review posted to Amazon, I received the following response: "Dear Customer, Hello, these two values are in a relationship of inclusion and being included". (see accompanying photo). Second Update- A few days after the above update, I received am email apology for the long delay in response, along with an offer to receive a complementary new device.

Just what I was looking for—Bluetooth and rechargeable. Works great. The battery lasts for days.