Sigma iD.FREE - Carry out training; Wrist-based heart rate

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1.3 Carry out training
DONE
Here, data such as:
Auto Pause, GPS, Automatic Laps etc.
can be switched on or off.
Training in
Auto pause
<2.2 km/h
to select
Quick menu:
1.4 Wrist-based heart rate
Not too tight! Fitting fine Not too loose!