Android : Detect when wearable connected/disconnected to/from Android phone

The Pebble watch has a Intent that is globally sended when the Pebble is connected/disconnected. This allow the phone apps to know if the watch is connected or not. I have searched but I'm not capable to locate info about a similar feature for Android Wear. How know if a wearable is connected to the phone? Is possible to receive a event like with Pebble? Thanks