We might have to wait a while for native Bluetooth 4.0 support to make it into the Android code base, but while OEMs are shipping phones with their own implementation of the wireless standard, app developers seem more than willing to hop onboard.
As such, the Fitbit app for Android has today been updated to take advantage of Bluetooth 4.0 syncing on the Samsung Galaxy S4, with all the improvements in efficiency that it brings. As Bluetooth 4.0 support isn't yet standardized in Android, Fitbit says custom development work is required for each new handset. Naturally, Samsung's big-selling flagship was an early priority.
Here's hoping support will follow for other BT 4.0 handsets like the HTC One. In the meantime, you can grab the latest version of Fitbit for Android over at the Google Play link above.
Source: Fitbit Blog