Bangle.js 2 Cutting Edge - new heart rate algorithm

I did a small test with two Bangle.js2 on the same forearm. One with the old firmware and a bt chest belt connected to it (blue) and its firmware PPG result (red) and another Bangle.js2 with new firmware and and its firmware PPG result (green). While recording I was

1. sitting still
   
2. walking fast
   
3. running without moving
   
4. sitting still
   

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