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How accurate is the pulseOx?

darisg over 5 years ago

Always gives me a reading too low 90-94% while an external devise is in the range of 97-99%

also cant always take a measurement, too many "measuring" and "keep still" cycles with no results.

The fitting is fairly tight just above the wrist bone

Top Replies

gaijin over 5 years ago +2 suggested

My 6X Pro has demonstrated pretty good correlation with a dedicated pulse oximeter. For the past 24 hours I have been at a steady 4553 Feet above MSL and seen a SPO2 level between about 88% and 94%:

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DFXDFX over 4 years ago +1

Mine is crap. It shows, just an example, 85% when checked with a medical pulseox is 98%. I have tested in various conditions and in my watch ( 6x pro) is useless.
Former Member over 4 years ago +1

I have the same. 90-94 with my watch and 96-99 with finger device

All Replies

0 kaz911 over 4 years ago

My F6x Pro Solar - does a LOT better when I measure under a cover - so block out "outside" lights.

Without cover I get 95-96% - with cover over the watch I get 98-100%

0 JeyJey over 4 years ago

could maybe the rear cover be affected by this? seems that he rear cover from the fenix 6 is more sharply curved and the lugs are even higher from the bottom of the OHR, for the fenix 6x the rear cover is more flat. Can this shape form affect on the readings? regards,

0 gribneck over 4 years ago

Hey. I had the F6 (base-model 47mm) for about a year, and i was disepointed with the pulsox. Resentlty i changed it out for the F6 pro saphire instead, and that was a compleatly different story! Seems like it gave me more consistent and accurate readings from day 1 :). Dont know the reason, but super happy now.

0 Marklorian over 3 years ago

I’ve got a brand new X6 sapphire and mine does exactly the same - did you ever resolve the problem.

0 2669794 over 3 years ago in reply to Marklorian

Mine have the same issue. I compare with a professional pulsoximeter and the differences were huge - above 7 points. I really don’t understand why Garmin it’s “silent” on this topic. It’s not a cheap sport watch…

+1 Garmin - Chris over 3 years ago in reply to 2669794

Please refer to this Support Center article regarding the PulseOX sensor:

- Pulse Ox Sample Rates