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Community Moderator Alumni are previous members of the Moderation Team, which ensures conversations are friendly, factual, and on-topic. Moderators are here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
You can definitely use the dongle you have from a previous Fitbit purchase @Jaydaize! USB dongles work across all trackers.
Keep an eye out for changes to the Fitbit Connect software that should help make it even easier to sync! 
Best Answer
Community Moderator Alumni are previous members of the Moderation Team, which ensures conversations are friendly, factual, and on-topic. Moderators are here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
You can definitely use the dongle you have from a previous Fitbit purchase @Jaydaize! USB dongles work across all trackers.
Keep an eye out for changes to the Fitbit Connect software that should help make it even easier to sync!
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