I have only had it about a week or so but have been taking daily readings for my husband and me to get a sense of normal for us. It works fine. I check the pulse rate against my Fitbit and they match. I have no way to test the oximeter except to say the readings have duplicated those I have gotten at my Doctor’s office so it seems quite accurate.
I like the automatic off/on feature. The only criticism is that the owner’s booklet is unnecessarily complicated and has been written by someone who’s first language is not English but for ordinary home use you can use it without instructions.
I would recommend it.
Easy to use and functions well. Takes oxygen % and heart rate/pulse. I recommend.
I purchased one of these for each of our doctor kids for their health monitoring. The delivery speed and communication was very good. My husband and I ordered the Bluetooth compatible oximeter for him to monitor sleep apnea concerns and that works great; good product.