You can sync your Fitbit with an iPhone through the mobile Fitbit app. There are also a few tricks you can try if your Fitbit won't sync.

This article explains how to set up Fitbit notifications to mirror some of your smartphone's notifications. These instructions apply to iOS and Android devices, and all Fitbits with an LCD can support ...

You can delete your Fitbit account at any time on the Fitbit mobile app or website. You'll then have a week to recover it if you change your mind.