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Setting Up Your User Profile
You can update your sex, birth year, height, weight, wrist, and heart rate zones (Setting Your Heart Rate Zones,
page24) settings. The watch uses this information to calculate accurate training data.
1 Hold .
2 Select > User Profile.
3 Select an option.
Gender Settings
When you first set up the watch, you must choose a sex. Most fitness and training algorithms are binary. For the
most accurate results, Garmin recommends selecting your sex assigned at birth. After the initial setup, you can
customize the profile settings in your Garmin Connect account.
Profile & Privacy: Enables you to customize the data on your public profile.
User Settings: Sets your sex. If you select Not Specified, the algorithms that require a binary input will use the
sex you specified when you first set up the watch.
Heart ate Features
The D2 Air X10 watch has a wrist-based heart rate monitor and is also compatible with chest heart rate
monitors (sold separately). You can view heart rate data on the heart rate glance. If both wrist-based heart rate
and chest heart rate data are available when you start an activity, your watch uses the chest heart rate data.
Wrist-based Heart Rate
Wearing the Watch
CAUTION
Some users may experience skin irritation after prolonged use of the watch, especially if the user has sensitive
skin or allergies. If you notice any skin irritation, remove the watch and give your skin time to heal. To help
prevent skin irritation, ensure the watch is clean and dry, and do not overtighten the watch on your wrist. For
more information, go to garmin.com/fitandcare.
• Wear the watch above your wrist bone.
NOTE: The watch should be snug but comfortable. For more accurate heart rate readings, the watch should
not shift while running or exercising. For pulse oximeter readings, you should remain motionless.
NOTE: The optical sensor is located on the back of the watch.
• See Tips for Erratic Heart Rate Data, page23 for more information about wrist-based heart rate.
• See Tips for Erratic Pulse Oximeter Data, page27 for more information about the pulse oximeter sensor.
• For more information about accuracy, go to
garmin.com/ataccuracy.
• For more information about watch wear and care, go to www.garmin.com/fitandcare.
22 Heart Rate Features
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