Wear Aware is a simple app for your Android Wear smartphone that serves as a leash for your smartphone. When you walk away from your phone, Wear Aware will vibrate and play an audible alarm on your wrist so that you know that you've left your phone behind. This is useful for those times when you've set your phone down on a table at a cafe or restaurant and forget to pick it up when you leave.
The app is a free download and brings a similar functionality to Android Wear that has been available on Pebble, Samsung's Gear series, and other smartwatches in the past. For now, the developer says that Wear Aware is in its first version and some bugs may crop up.