What is PAI?

What is PAI?

PAI stands for Personal Activity Intelligence.
Decades of research has proven that cardiorespiratory fitness is one of the leading predictors of health and longevity. Everyone knows that doing moderate exercise increases cardiopulmonary ability, but most people don't know the correct way, time and intensity of exercise they should use.
The purpose of Professor Ulrik Wisløff's research is to help people manage their own health status with an easy-to-understand activity tracking indicator – PAI. So you don't need to follow other complicated physical data indicators, PAI data is enough to help you keep fit.
PAI gives you a score based on the past 7 days of activity. Your ultimate goal should be to maintain 100 PAI or more. You earn PAI points by elevating your heart rate. Anything that gets your body moving and your heart pumping counts. The higher your heart rate and the longer your heart rate is elevated, the more PAI you earn, allowing you to get healthy in less time by increasing the intensity.

How is works?

The metric takes your heart rate during all activity (even activities that don't involve steps) to generate PAI score.

The objective is to maintain a score of 100 PAI throughout a rolling 7 days.

The score is based on each person’s physical data (age, gender, maximum heart rate, resting heart rate, and the body’s response to exercise.). So the activity everyone need to achieve their goal of 100 is unique to them.

Benefits for the users:

Easy metric:

A single, easy-to-understand activity tracking metric.

Long term health benefits:

According to the HUNT Fitness Study*, people who continuously maintain their PAI scores above 100 have lower risk to get hypertension, heart disease, and type 2 diabetes. So as long as they keep the Huami-PAI™ value above 100, they can maintain good health.


A really personalized metric of your physical activity (everyone’s PAI calculation is different).