Android Wear is Google's wearables platform that brings the Android experience to wearable devices, namely smartwatches. Android Wear provides the most useful information on your device such as updates from social apps, chats, news & shopping apps and more. Android Wear also makes use of voice input with the familiar "Ok Google" command and allows you to use your voice to issue commands or send/reply to messages. Other features include health and fitness apps and music players. Android Wear pulls notifications from your Android 4.3 or higher phone and relays them to your watch. You'll receive contextual alerts for things like weather, sports scores, calendar appointments and flight alerts — very much integrated with Google Now.
The first Android Wear devices were announced at Google I/O on June 25, 2014. The LG G Watch and Samsung Gear Live were the first devices made available and can be ordered via the Google Play Store. More devices like the Moto 360 are set to arrive later in 2014.