The Runtastic Orbit does not link with Myfitnesspal, or Runtastic's own website. The fitness band only links to Bluetooth LE phones, saves step count and sleep data only within the Runtastic ME app and displays information from other Runtastic apps.
You did not test the real cool features?
Pair it with a heartrate belt and the runtastic app and you've all the important data on the weist and can leave the iPhone in it's case.
In this configuration the performance is much better as every gps watch, if you have your phone with you for music anyway. Runtastic has much more features and as you already own the phone it's much cheaper,