AndroidWear is Google's wearable watch with an "always-on" display, meaning you can get information and notifications at a glance. Lifting the watch up causes it to go from black and white to color. It comes in multiple designs: LG G, Moto360 and Samsung Gear Live. LG G and Samsung Wear will be available for order at the Google Play store later today. However, Google did not specify a ship date. Moto 360 will be available later in the summer.
You swipe vertically to switch through notifications and horizontally to get to actions. When you dismiss notifications on the watch, they'll also disappear from your phone. You can receive and dismiss calls on the watch and use it to control music on your phone.
You can leave yourself voice reminders with the "Ok Google" voice command and the watch will store a notification in your phone that will pop up later. For example, if you've told AndroidWear to remind you to do something when you get home, the watch will use geo-tracking to make sure to notify you when you get home. There are health and fitness features such as a step-counter and heart rate monitor. The watch can display QR codes (like the ones on a boarding pass).
There are some pretty cool apps available: Eat 24 allows you to order food from your watch; the "Lyft" ride-sharing app, which lets you order a car with a voice command; All the Cooks is a recipe app and when an amount of time is featured in a recipe, you can click on it to automatically set a timer.