C H E C K Y O U R H E A R T R A T E L I M I T S
While exercising you don’t have to press any button to check the heart rate limits you are using. Just bring the wrist receiver up to your chest near the transmitter’s Polar logo.
The current exercising zone values and backlight will be on for a few seconds.
S E E Y O U R P R O G R E S S B U L L E T S D U R I N G E X E R C I S E
In models M21 and M22 a bullet appears for every 100 kcal energy expenditure.
In models M51 and M52 a bullet appears for every 15 minutes exercise in Target Zone.
S W A P T H E H E A R T R A T E L I M I T S
In models M51 and M52 you can swap heart rate limits during the exercise while the stopwatch is running and you have set OwnZone on. You can select between OwnZone Basic, OwnZone High, OwnZone Low and manually set limits.
Press and hold 
SCROLL UP or SCROLL DOWN.
If you swap heart rate limits during exercise, the latest ones in use will be saved as measurement option settings and your next exercise will start with these limits.
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