How do I turn off heart rate on my smartwatch? Press the middle button to access watch menu. Select the gear icon to access the watch settings, then find the Heart Rate to turn tracking off and on. Related articles What type of activity data does my CZ Smart Gen 2 Hybrid smartwatch track? Does my CZ Smart Gen 2 Hybrid smartwatch monitor my heart rate? How do I turn off GPS on my smartwatch? How can I access the settings menu? What type of sleep activity is being tracked?