Fitbit Surge - Manual (Page 34)

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Adjusting the backlight
This setting controls the conditions under which your Surge lights up. Available
options are:
• Auto (the default) – When you tap the screen, press a button, or turn your
wrist to view the time, Surge uses ambient light to determine whether the
backlight comes on.
• On – Whenever you tap the screen or press a button, the backlight comes on.
• Off – The backlight does not come on under any circumstances.
To adjust this setting, swipe to the Settings menu and tap the screen. Swipe up until
you find Brightness.
Adjusting the heart-rate tracker
Your Surge uses PurePulse™ technology to track heart rate automatically and
continuously when the heart-rate tracker is on. The Heart Rate Tracking setting has
three options:
• Auto (the default) – The heart rate tracker is generally active only when you
are wearing your Fitbit Surge.
• Off – The heart rate tracker is never active.
• On – The heart rate tracker is always active; you may want to choose this
option if your heart rate isn’t being tracked even though you are wearing your
tracker.
If you remove your Fitbit Surge but it keeps moving, for example if you put it in a
pocket or backpack, it may record an erroneous heart rate reading. You can prevent
this by changing the setting to Off.
To adjust this setting, swipe to the Settings menu and tap the screen. Swipe up until
you find Heart Rate Tracking.