Hi
From the Fitbit Article: How do I change my language on Fitbit?
HOW DO I CHANGE THE LANGUAGE ON MY TRACKER OR WATCH?
Your tracker or watch must use the same language as the language you use for your Fitbit account.
To change the language on your tracker or watch:
- From the Fitbit app dashboard, tap or click the Account icon (
). - Tap or click Advanced Settings.
- Tap or click Country.
- Turn off the option to automatically detect your country.
- Choose your country and then sync your tracker or watch.
- Follow the instructions to update your tracker or watch to use the language you selected.
Hope it helps