Originally Posted by
rpenmanparker
Not because of reliability. Because of the extra information provided by multiple chest electrodes. For heart rate you don't need that.
Reliability and accuracy:
Who Has The Most Accurate Heart Rate Monitor?
ANT+ chest straps also read R-R data, which is useful for HRV if you have an app.
I've been getting reliable, accurate data from chest straps since 1995. I've run software and equipment so that I have ride data back to 2000, when I started uploading my data.