(Pocket-lint) - Fitbit has released an Android version of its Fitbit activity tracker application that hooks up to a Fitbit One or Fitbit Zip device via Bluetooth 4.0.

Previously available only on iPhone, the new app is only for Samsung Galaxy S III and Galaxy Note II smartphones at present, which further device compatibility promised. However, there are some reporting on Google Play that they've managed to get it working on the Samsung Galaxy Note 10.1 tablet and a rooted Samsung Galaxy S II.

The app lets you see live updates of the data collected by the One or Zip trackers, including latest steps taken or calories burnt. It will also provide information on your sleep patterns, how many steps you've climbed, your latest weight and BFI, and more.

You can also log food, etc, on the fly and set goals, such as how many calories you want to burn in a day.

It will also show the progress of your Fitbit-owning friends, so you can rate how well you are doing in comparison. There are push notifications when you reach set targets.

Read: Fitbit Zip review

"We’re delighted that we can now offer our Bluetooth 4.0 feature to our customers on Android devices, opening up a significantly large part of the UK mobile market," said Gareth Jones, general manager of Fitbit EMEA. 

"The ability to track your stats on the go with automatic syncing is central to Fitbit’s approach of making our customers more aware of their daily activities and in the process inspiring and motivating them to do more. We are committed to investing in multiplatform mobility making our products available and accessible to as many as possible, moving forwards."

The move comes after Nike admitted that it had no plans to add Android compatibility to its FuelBand fitness device.

To download the free Fitbit Android app, it's available on Google Play now. The iPhone version, naturally, is still available on the iTunes App Store.

Writing by Rik Henderson.