In March 2014, Google officially announced they were branching out into the world of wearable mobile handsets with the unveiling of Android Wear , a new version of the Android operating system designed specifically for wearable devices. In the first part, you'll get all the background information and best practices you need, ready to start developing for the wearable platform in the second part. 1. What is Android Wear? The Android Wear operating system uses Bluetooth to connect to handheld device(s) running Android 4.3 or higher. Once this connection is made, the wearable channels information and updates from the paired smartphone and/or tablet, and conveniently displays them on the user's wrist. These updates include things like Google Now cards, Gmail, Google Calendar, and phone notifications, such as incoming calls and text messages. But, Android Wear is more than just a convenient way to receive smartphone and tablet notifications. Android Wear can...