Keys
![Front view of the device with callouts](../Shared/GUID-DC0C63F0-4AA8-4FF5-9AD4-C13105FF5E87-high.jpg)
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Select to enter sleep mode and wake the device. Hold to turn the device on and off and lock the touchscreen. |
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Select to mark a new lap. |
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Select to start and stop the activity timer. |
Parent Topic: Introduction