Overa ll l rating is very good.
Product is over expensive, rest it works fine
Just do this thing u will know. Put oximeter in finger and hold breath or tie a band. It will not go down it will still show same result. U remove and re insert now it will be flat line
We check oxygen level twice on daily basis.
1. It is quick to setup
2. Easy to use
3. Display is uset friendly, be it young or old people
4. Different modes of display
I have recommended same to many of my friends and family.
Build quality is ok
Working wise it is fine.
Cost wise it is ok.