The SmartTrack feature on your Flex 2 recognizes and records swims that are at least 10 minutes long. Swim detection is turned off by default; follow the instructions below to turn it on.
Under Goals, tap Exercise.
Tap Swimming and then tap Auto-recognize.
If you want to change the minimum duration that's automatically recorded, tap Swim Longer Than and choose your time.
Under Account, tap the three buttons on the upper right.
Log into your fitbit.com dashboard and click the gear icon in the top right corner.
Click Settings > Devices. If you have more than one tracker, choose Flex 2.
Find Swimming and choose the minimum duration.
You can also watch our video to see swim tracking in action (English only):
How do I track my pace and distance?
Flex 2 automatically tracks the duration of your swim and the number of pool lengths you complete. To track your pace and distance, enter the pool length in meters or yards into the Fitbit app before starting your swim. Keep in mind the pool length you enter will remain the default length until you change it. If you swim in the same pool often, you don’t need to input the length each time.
Follow the instructions below to enter the pool length into the Fitbit app.
From the dashboard, tap Account.
Scroll down to Settings and tap Advanced Settings.
Tap Swimming Settings
Enter the pool length and unit of measurement (meters or yards).
Which strokes can I use to swim?
While you can choose to swim using any of the four most common strokes (freestyle, backstroke, breaststroke, and butterfly), we recommend swimming freestyle for the best results.
Do I have to be a good swimmer to use this feature?
Your tracker will record your swims even if you’re a novice swimmer, meaning you can swim about six to 12 lengths of the pool without stopping to rest. If you’re unable to swim this distance, you may notice inconsistencies in your swim data including some lengths not counted. As your swimming ability improves, you’ll likely notice fewer inconsistencies in your data.
Where can I see my swim data?
On your Fitbit app dashboard, tap the Exercise tile to see your exercise history. (On fitbit.com, go to your activity log.) Tap the most recent swim log to view additional stats including the impact the exercise had on your day.
Why do I see a length count after an open water swim?
Your tracker will try to identify lengths each time you swim, so you may still see an estimated number of lengths completed after your open water swim.
Why is my swim data incorrect?
In addition to completing only a handful of laps or stopping to rest often, inconsistencies in your swim data may be caused by any of the following:
Stopping to rest midway across the pool
Resting for longer than 60 seconds after completing a pool length
Changing stroke type midway across the pool
Swimming with a kickboard or not using your hands
Swimming less than the minimum duration set to be auto-recognized
Can I swim in deep water with my tracker?
Your tracker is water resistant up to 50 meters.
Does swimming count toward my step goal?
While you don’t earn steps for swimming, the exercise will count toward your active minutes and calories burned goals. By default, your tracker’s primary goal will be steps taken, but you can choose a different goal. For more information, see How do I track my fitness goals with Fitbit?
Can I see my swim stats on my tracker?
At this time, your swim data is only visible in the Fitbit dashboard.