By now, you probably realize that an Android Wear watch is not just a smaller form factor than its predecessors, such as the phone and tablet. There are various nuances and characteristics that make the Android Wear watch different to the other big screen devices.

First and foremost, there is no such thing as keyboard input, at least, not currently. That brings a major challenge in how you design apps for Android Wear platform. There is not much of interactivity available from the user due to the lack of keyboard (physical or virtual) data inputs.

On top of that, we also don't have the ubiquitous back button that is available on all other Android devices. The button for going back on the Android platform makes navigating inside an app and switching between apps a lot easier. Without that, it would be a lot harder to navigate within and between apps. The swipe gestures on the Android Wear watch are used like back buttons.

Before we start writing UI components and navigation code...