Version 1.2 increases the size of the fitness module, and adds distance. 1.2 also includes a calories icon rather than text. Weather and battery modules had to be shrunk and moved to accommodate the larger fitness module. From 1.2 on, tapping the moon phase updates the weather, and tapping the weather opens the weather app. Tapping heart rate opens the heart rate app from my watchs manufacturer. This may not work with other brands. Tapping the other fitness indicators opens Google fit. Version 1.5 adds gyroscope rotation to the shiney surfaces to imitate natural light reflection. This may turn out to be a battery killer, and is the only difference between 1.2, and 1.5.