What type of activity data does my CZ Smart Gen 2 Hybrid smartwatch track? Your watch tracks both activity (steps, heart rate, distance, calories, and SpO2* (blood oxygen) and sleep (awake, light, and restful). *SpO2 (blood oxygen) only applicable with certain devices* Related articles How can I view my activity history? Setting up your CZ Smart Watch My heart rate is not properly tracking. How can I fix this? Do I need to press a button or take action to start tracking my sleep? How do I connect my CZ Smart watch with the YouQ app?