Garmin hrm 600, experience and questions about how to use it. I recently updated it and we are currently getting acquainted with it. I have come to the conclusion that, for several reasons, the hrm600 connection ant+ is much more stable and energy efficient for the watch than the ble connection. In terms of numbers, the watch battery drains 7% in 90 minutes with ANT+, while it drains 11% with a BLE connection. plus, if your phone is on the bench and connected to your watch and phone via Bluetooth (because you paired the watch with the phone beforehand), then every time the watch connects to the phone, for technical reasons, the watch may interrupt the connection for a moment, which is why there are sometimes interruptions in heart rate measurement, during the breathing process, while this does not occur with ant+ (in theory, it should not necessarily skip the measurement with ble either), or my belt has become buggy. My experience is that the watch is ant+ connect ble. What is your experience with using it? Any other smart useful comments?