Heart Rate Derived Metrics with no cadence

[drustan (Roy Galvin)]

I wear a HR strap, but I don’t have a cadence sensor on my bike that I commute with.
Will XSS still be estimated?

Thanks

[Cyclopaat (Robert Rijnders)]

From what I read, yes. It will be more accurate - in theory - if you do use a cadence sensor, as it uses historical data containing HR and cadence data, and the relation between the two.