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Welcome to the forums!
No it is not. Did you set it up? As it will not work until you do
To download software or App
https://www.fitbit.com/start
To set it up
http://help.fitbit.com/articles/en_US/Help_article/1873
If you have trouble see this Article on Why cant I set up my Fitbit?
http://help.fitbit.com/articles/en_US/Help_article/1872/?q=not+setup&l=en_US&fs=Search&pn=1
Check out the discussions boards! A lot going on and I'm sure you have some contributions as well!
Hope to 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
@cianroyb I hope you're doing well! Thanks for taking the time to share the situation you are experiencing with your Fitbit One's display.
When you press the button, does it light up or show any data on it? Also, when you plug it into the charging cable, does it shows it is charging?
If it is not, please try restarting your Fitbit One. This has helped other users with similar issues.
@WendyB Thanks for sharing you light on this thread!
Keep me posted! 
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