The ASUS ZenWatch is their "first wearable device produced in partnership with Google". It is a smart watch from the Android Wear platform. It has a curved glass display of unknown resolution, a leather strap, and a "quick-release clasp". It ships with numerous faces… because it's software and it is basically free after you pay the designer, especially with the price of storage these days. It requires a phone with Android 4.3 or later.
ASUS has customized the user interface with their ZenUI. Its main usability features either interact with your phone or track your fitness activity. It acts as a pedometer, calorie counter, heart rate monitor, and fitness goal tracker. Each of these are integrated around their ZenUI.
ASUS has not publicly announced pricing or availability. According to VR-Zone, ASUS representatives state "under $200". This is significantly less than Apple's "starting at $349".