When you don't need to sync email frequently, such as when you're watching video or driving, use
Smart Sync to automatically extend the time before
HTC One S syncs your email account.
Smart Sync helps you save battery power.
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Switch to the email account where you want to use
Smart Sync.
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Tap
.
-
Tap
.
-
Tap
.
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Press
.
Smart Sync then extends the email synchronization time after each auto sync time passes and you don't open the
Mail app. To sync your email at any time, open the
Mail app and check your inbox.