muscle oxygen fields fenix 5

Former Member
Former Member

Fenix 5 added muscle and oxygen screen. Line Muscle O2 sat% and total hemoglobin I ran, but I'm not pointing anything. Why? Do I need an additional accessory or under what conditions does the data appear?

  • I remember I read somewhere that in order to have information from this fields, Fenix 5 should be connected to an external oxygen sensor. I will search for that info and post it here.

  • There is an excellent post by DCRainmaker, back in 2016, in which he spoke of Garmin introducing muscle Oxygen on several devices.

    The post can be found here: https://www.dcrainmaker.com/2016/08/garmin-releases-strava-live-segments-for-running-muscle-oxygen-on-devices-photo-watch-faces.html and in it he says:

    You may have seen this in my ‘Week in Review’ posts over the last few weeks.  It started quietly with the FR630, but has since expanded to a number of units including the FR735XT and is being worked on for additional units.  What this allows is the viewing and recording of blood oxygen saturation and total hemoglobin data from compatible devices – namely the Moxy Muscle Oxygen sensor and the BSX Lactate Threshold sensor.

    Previously you had to use Connect IQ apps/data fields to display that data, but even then, you couldn’t record it on your Garmin device.  Well this summer Garmin released (a week or so ago) the ability for 3rd party apps to record data to .FIT files, thus lighting up all sorts of interesting sensor options down the road.

    However, at exactly the same time, Garmin also enabled the ability for you to simply connect straight to Muscle Oxygen sensors just like you would a heart rate strap.  So no 3rd party software needed at all – thus making your life a lot easier.