Hello @AgapeZoe, awesome to see new faces in the Fitbit Community! My apologies for the late response and thank you for your feedback regarding the compatibility of the Samsung Galaxy S9+.
Rest assured we are working to add more devices in our compatibility list, however as moderators we do not have further details about the Galaxy S9+.
If a device isn’t listed it doesn’t mean it won’t work with a Fitbit tracker or smartwatch. We routinely test new devices to ensure full compatibility with Fitbit devices and the Fitbit App, and are constantly working to confirm compatibility with new phone models. A majority of Android phones running version 4.4 or higher will work with our products, however we cannot guarantee optimal performance on devices for which we have not tested and confirmed compatibility. The full list of compatible devices with confirmed compatibility can be found at fitbit.com/devices.
You probably already saw this, but as a matter of review, I would like to share the following help article: Why won't my Fitbit device sync?
See you later and stay tuned for future updates.
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