Use The Timer Or Stopwatch - Fitbit Zip inspire 3 User Manual

Use the timer or stopwatch

Time events with the stopwatch or set a countdown timer with the Timers app
on your tracker. You can run the stopwatch and countdown timer at the same time.
If always-on display is on, the screen continues to display the stopwatch or
countdown timer until it ends or you exit the app.
For more information, see the related help article.
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