Before you can calculate the size of an area, you must acquire satellites.
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From the watch face, press
GPS.
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Select
Area Calc..
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Walk around the perimeter of the area.
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Press
GPS to calculate the area.
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Select an option:
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To exit without saving, select
Done.
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To convert measurements of the area to a different unit of measure, select
Change Units.
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To save, select
Save Activity.