Community Moderators ensure that conversations are friendly, factual, and on-topic. We're here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
@jenlangley Thanks for bringing this into my attention! Your Fitbit account syncs with your Weight Watchers profile, it doesn't matter from where you sync. If they're not syncing every day, relink both accounts. Perhaps this two threads can help:
Weight Watchers set up and sync
And I highly recommend that you contact Weight Watchers support to get to know more about the syncing options from their site to Fitbit. Let me know if you have an additional question. Happy stepping! 
Best Answer