Charge 4 did not register road bike for today

[AOttney]

Charge 4 did not recognize my road bike ride today of 20 miles, up until today it had recognized all my rides without a problem and today it tracked nothing. 

Moderator Edit: Clarified subject

[CindyMFitbit]

@AOttney Welcome to the community forums. 

Thanks for the details shared in your post. Most Fitbit devices automatically recognize and record high-movement activities through the SmartTrack feature. To start, your device recognizes activities at least 15 minutes long. If your Charge 4 isn't registering your Bike activity, I'd recommend lowering the auto-exercise recognition setting to 10 minutes. You can do so on the Fitbit app:

1. On the Fitbit app dashboard, tap the Exercise tile.
2. Tap on the gear icon at the upper right corner.
3. Tap an exercise, and adjust the duration or turn off Auto-rec. Make sure to tap on "Save" 
   

If that doesn't work, I suggest you to restart your Charge 4 following the tips here. Also, I'd advice to use track your activities using the connected GPS option too, you can track specific exercises such as a run, bike, swim, or yoga with the Exercise app. To see real-time stats, capture GPS data and review a post-workout summary on your wrist. For more information, including how to customize the exercise types on your device, see How do I track my workouts with my Fitbit device?

For your missing activity, you can manually log it on the Fitbit app.

Hope this helps!