This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Pulse oximeter accuracy

JamesWoodhead over 5 years ago

How accurate is the pulse sleep oximeter? my stats are coming in around the mid 80's!!

Top Replies

5724083 over 5 years ago +4

The readings also seem very inaccurate to me. Usually you say that when SpO2 drops below 90% in the night, it's not good and can likely point to sleep apnea.

I hope they're able to improve these readings…
7835697 over 4 years ago +4

This is inaccurate, mine shows between 83% and 89% during sleeping and between 90 and 95% most of the time during awake. but medical oximeter shows between 97 and 99, I am using vivoactive 4 ,recently…
Nikkko over 5 years ago +3

As Fer mentioned, pulse ox readings have to be taken with a grain of salt. But as Garmin refines the firmware for these new devices, perhaps numbers will become more accurate.

My night recordings average…

All Replies

0 3138229 over 4 years ago

I have just bought a Garmin fenix 6 and with the latest update it meaures for me between 95% and 98% which seems about right. Obviously because only a few percentage points is the difference between health and illness they have to be accurate to be of any use.

0 JohnBan over 4 years ago

my wife's 245 , non music, does not have accurate readings too. the watch counting 88-92% and the from the finger she gets 97-99%.

it is a big difference !!!

0 3475924 over 3 years ago in reply to iglero

I checked mine against a medical oximeter and got 7 points difference on average over about 4 hours. Not very scientific, but it aligns with your finding.

0 8343560 over 3 years ago

I've some questions related the accuracy:
It's possible that the Pulse Oximeter accuracy depends on the firmware versios of the forerunner 245 or depends on quality of sensor? The accuracy problem is the same in other multisport watchs type? The firmware update 6.2 resolve the problem? My measured value is 90. Sometimes 97. Thank you

0 2685919 over 2 years ago in reply to JohnBan

the same happens with 245 music. The precision is not good. I got 85% during sleep and 91% day average.

0 JamisLabs over 2 years ago

FR245 - Inaccurate, reads 89% against my finger oximeter of 97%. If I relied on the FR readings, I should be heading to the hospital.