Fitbit One not syncing with iPhone 6s

[Missq]

My One has not synced in almost a week, I have followed all the help adv, resetting app, phone etc but to no avail. Can anyone help?

Moderator Edit: Clarified Subject.

[SteveH]

The usual things to try when you get syncing issues are:

• restart phone
• restart fitbit using this procedure: https://help.fitbit.com/articles/en_US/Help_article/1186/
• restart fitbit a few more times (it doesn't always work)
• "forget" the fitbit in the phone's bluetooth settings
• go through fitbit's troubleshooting guide at: https://help.fitbit.com/articles/en_US/Help_article/1866/
• if none of that works then contact customer support: contact.fitbit.com

[MarcoGFitbit]

Hello @Missq, have a warm welcome to the Fitbit Community. It's great to see you too @SteveH, thanks for your help. 

@Missq, I appreciate you have taken the time to let us know about this situation and for having tried several troubleshooting steps before posting in the Forums. If you have already tried the troubleshooting steps provided by @SteveH and you're still having syncing issue, please set up your tracker as a new device to reset the connection between the tracker and your phone. Don't worry, none of the information already stored in your account will be deleted. 

To set up your tracker as a new device:

1. Go to the Bluetooth settings on your phone and check if your tracker is on the list of paired devices. If it is, tap on it and select Forget this Device.
2. Open the Fitbit app and tap on the Account symbol at the top right corner of the screen, then tap on "Set up a New Device"
3. Choose your tracker and follow the onscreen instructions to continue
4. When the app asks you to replace your current tracker, please replace it and continue with the process.
5. When a pop-up appears asking you to Pair your tracker to your device, tap on Pair and continue.

I hope this can be helpful, if there's anything else we can do for you, please feel free to reply.