Hello @UrbanFox, welcome aboard to the Fitbit Community. I was reading you need to know if the Galaxy A3 2016 is compatible. To learn more about this, you can use our online list of supported device.
To see the latest list of supported devices, please go to http://www.fitbit.com/devices. If your device isn't listed, you can check the link at a later date to see if device support has been added.
If your phone is not listed, remember that you can sync using other alternatives like using a computer.
See you around and hope this information helps.
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