BasildiskInnocent423 months ago000Hello, I have a T-Rex 3 pro and I have no sleep tracking despite different wrist positions and arm changes.Show in original language (French)Dieter0072 months ago • purchased this product000purchased this productHelloDo you have a display of resting heart rate and heart rate variability after sleeping?Are there any other obstacles between the watch and the skin?Show in original language (German)Comment