Title: Top FAQs for the Pulse Ox Feature on Garmin Watches | Garmin Support
Headings: Top FAQs for the Pulse Ox Feature on Garmin Watches
Top FAQs for the Pulse Ox Feature on Garmin Watches
What is Pulse Ox?
Why Should I Be Interested in Pulse Ox Tracking?
What Kind of Light Is Being Used to Trigger the Pulse Ox Feature?
Will Using the Pulse Ox Feature Affect the Battery Life of My Device?
How Often Does the Watch Sample My Pulse Ox?
Spot Check Mode
All-Day Mode
Sleep Mode
How Can I Use the Feature?
How Do I View Pulse Ox Data During Sleep Times?
Why Is My Pulse Ox Reading Low?
What Do I Do if the Watch Says "Check Watch Fit"?

Content: Your arm position can influence the blood flow to your wrist and can adversely affect readings, typically making them lower than they really are. Where possible, maintain a position that is conducive to good circulation and at or around heart level. What Do I Do if the Watch Says "Check Watch Fit"? When attempting to get a Pulse Ox reading from the watch you may see the message "Check Watch Fit". If this occurs check the watch fit following these tips: The optical heart rate sensor must remain in contact with your skin at all times
The watch must worn snug, but not too tight
If worn too loose the watch can slide around, creating a gap between the optical heart rate sensor and your skin
If the watch is worn too tight it can actually restrict blood flow
A good fit will mean that you can move the watch and the skin underneath moves with it
Wearing the watch on the outside of the wrist is recommended
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