@brave_dave said in Suunto ZoneSense:
For me personally, when I know that on average, even under perfect conditions, the ZS estimated threshold is off by 8-10 BPMs in either direction, it is not usable for me
It is way worse for me. I’ve seen example of ZS suggesting anaerobic threshold that is even below my aerobic threshold - that is almost 30 BPM below what it should be. These are laughably inaccurate estimates.
Let’s look at another example where I actually had a steady threshold effort for a long time that was a good indicator of my anaerobic threshold. ZoneSense still managed to detect my anaerobic threshold at 148 even though I ran for 20 minutes in the 160-165 range. By the way, that closely matches multiple of Garmin’s LTHR estimates that all detected my LTHR at 162-163. How ZoneSense managed to detect that at 148 is beyond my understanding. I can’t seriously trust that at all.