Cardio Fitness – Citizen Watch UK Help Centre

My heart rate is not properly tracking. How can I fix this?

Make sure you are wearing your smartwatch higher and tighter on the arm with the sensors flat against your skin above the wrist bone. Temperature, sweat, irregular movement, and tattoos can cause... See more

How do I take a heart rate measurement?

Wear the smartwatch above your wrist bone with the watch still and flat against your skin. Assign Heart Rate to one of your watch face’s data points from the brand watch app options. Your BPM re... See more

Why am I not getting a Cardio Fitness reading?

There are a few different factors that can prevent you from getting a reading. Please try the steps below to make sure the app is getting all the necessary data. Enable background heart rate in ... See more

How often should I wear my watch to get a Cardio Fitness reading?

If you’re wearing your watch continuously throughout the day, you should get a reading within 24 hours. If you wear your watch for a few hours each day, it can take up to a week to get a reading. See more

What is Cardio Fitness?

Cardio Fitness is an estimation of VO2max using resting heart rate and your biometrics (like age, gender, weight, etc). This reading reflects cardiorespiratory and endurance abilities based on exer... See more

Why is my heart rate not showing up when tracking a workout?

Make sure you’ve enabled body sensor permissions: Apps & Notifications > App info > System Apps > Wellness > Permissions > Sensors See more