
Set the MONITORING MODE to Smart or Real-time.
•Smart mode
1The heart rate measurement will be performed every 10 minutes for low-intensity activities
(such as when you are not moving).
2The heart rate measurement will be performed every 10 minutes for moderate-intensity
activities (such as when you are walking).
3The heart rate measurement will be performed once a second for high-intensity activities
(such as when you are running) and it takes 6 to 10 seconds to display the first heart rate
value, though this may vary between individuals).
•Real-time mode: The heart rate measurement will be performed once a second for any type of
activity intensity.
When this feature is enabled, the watch will continuously measure your real-time heart rate. You
can view graphs for your heart rate in the Health app.
Using Real-time mode will increase the power consumption of your watch while Smart mode will
adjust the heart rate measurement interval based on the intensity of your activity, thus reducing
power consumption.
Heart rate measurement during an individual workout
During a workout, your watch can display your real-time heart rate and heart rate zone, and
notify you when your heart rate exceeds the upper limit. For the best training result, you are
advised to choose a workout based on your heart rate zone.
•Setting the heart rate zone calculation method
The heart rate interval can be calculated based on the maximum heart rate percentage or HRR
percentage. To set the heart rate interval calculation method, open the Health app, go to Me >
Settings > Exercise heart rate settings > Workout heart rate alerts and set Heart rate
zones to either Maximum heart rate percentage or HRR percentage.
•If you select Maximum heart rate percentage as the calculation method, the heart rate zone for
different types of workout activities (Extreme, Anaerobic, Aerobic, Fat-burning, and Warm-up) is
calculated based on your maximum heart rate ("220 – your age" by default). Heart rate =
Maximum heart rate x Maximum heart rate percentage.
•If you select HRR percentage as the calculation method, the heart rate interval for different types
of workout activities (Advanced anaerobic, Basic anaerobic, Lactic acid, Advanced aerobic, and
Basic aerobic) is calculated based on your heart rate reserve (HRmax - HRrest). Heart rate =
Heart rate reserve x Heart rate reserve percentage + Resting heart rate.
•The heart rate zone calculation methods while you are running are not affected by the settings in
the Health app. For most running courses, HRR percentage is selected by default.
Your watch will display different colors when your heart rate reaches corresponding zones during
a workout.
•Measuring your heart rate during a workout
Health management
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