Google on Wednesday announced that the LG G Watch and Samsung Gear Live, the first two devices to incorporate the search giant's Android Wear operating system, will be on sale later today.
The Moto 360 from Motorola, meanwhile, will arrive later this summer, Google announced at its I/O developer conference in San Francisco. Pricing was not discussed.
LG has already provided a peek at its smartwatch - which features a square watchface available with either a white or black band. The company said the device is water resistant and will always be on. Pre-orders start today and it officially arrives on July 7 for $229.
And while Samsung was confirmed as an Android Wear partner when the OS wasfirst announced in March, today was the public debut of the Android Wear-based Samsung device, the Gear Live.
Samsung's Gear Live can pair with any Android device running Android 4.3 or higher. The $199.99 device is available today for pre-order on the Google Play Store, and officially arrives on July 7, when it will also be sold on Amazon and at Best Buy.
LG G Watch
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The Gear Live sports a 1.63-inch Super AMOLED, 320-by-320 display. It runs a 1.2GHz processor and includes 512MB of RAM and 4GB of internal memory. It supports Bluetooth v4.0 LE, and is dust- and water-resistant. The Gear Live allows for standard notifications (SMS, email, etc), includes a heart rate monitor and changeable straps in black or wine red.
Google showed off Android Wear running on these devices. Users can get alerts - like upcoming travel or weather - but also talk to the device like they can with the Chrome browser on the desktop, among other features.

The announcement that the Moto 360 would not arrive until this summer elicited chuckles from the I/O audience. At the moment, Motorola Mobility is in flux, as Google is in the process of selling the company to Lenovo.
Stay tuned for more details about the devices. Until then, check out Android Wear Smartwatches Still Have a Lot to Prove.