Welcome to the Fitbit Community, @Ekta_Gambhir.
I appreciate your participation in the Forums and sharing that your Fitbit Versa won't sync unless it is connected to the charger. Syncing difficulty is usually caused by a missing requirement and I recommend following the complete troubleshooting steps from this help article: Why won't my Fitbit device sync?
Let me know how it goes.
Want to discuss ways to increase your activity? Visit Get Moving in the Lifestyle Discussion Forum.
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