Exercise heart rate tracking series 4

[John-F]

Apple is using CoreML (machine learning) for heart rate tracking in watchOS 5, so this is likely the source of most improvements, not the sensor itself.

I could not compare the Series 3 with the new software to the Series 4 because I sold the 3 prior to getting the 4.

 

[rcarter3636]

Apple is using CoreML (machine learning) for heart rate tracking in watchOS 5, so this is likely the source of most improvements, not the sensor itself.

Please explain this a bit more. I was thinking a new sensor was activated with the new software is the reason behind the tracking I get now with several exercises that was not there before. I am using AW3.

 

[batting1000]

Please explain this a bit more. I was thinking a new sensor was activated with the new software is the reason behind the tracking I get now with several exercises that was not there before. I am using AW3.

I don’t know much about machine learning, but basically they’re using a neural network and all that algorithm jazz to produce more accurate/ reliable readings and to reduce/eliminate those odd outliers.

https://twitter.com/_inside/status/1024687281880350720?s=21

I run 5 days a week and I have seen much tighter HR graphs in the Activity app following my run on watchOS 5 than I did on watchso4. Before, I’d look at my watch during a run and my HR would be greyed out periodically and unable to get a reading or the graph would have odd readings here and there that didn’t match up with what came before/after it.