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It does not look like it on the supported phone list
https://www.fitbit.com/devices
You will have to set it up via computer until it is
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Welcome to the Forums @klaroche and @WendyB thanks for stopping by.
As mentioned our friend, Moto Z is not a compatible mobile device and that's the reason why you are having problems syncing. Keep in mind that you can always sync your tracker with a computer or a compatible phone.
See you around. 
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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
It's great to welcome you @TheMaverick. Our team is testing the compatibility of several phones, your patience will be much appreciated. I recommend keeping an eye on our list of compatible mobile devices for any update and as mentioned in my previous post, you can always sync your Fitbit with a computer or a compatible device.
Catch you later.
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