Asus ZenWatch
The Asus ZenWatch was an Android Wear-based smartwatch announced on September 3, 2014 at IFA and released by Asus on November 9, 2014. It used Android Wear, a modified version of Android designed specifically for smartwatches and other wearables. ASUS has also provided a custom app manager for this watch called the ZenWatch manager.
Applications
For health tracking, people could use the ASUS ZenFit app as well as other health apps including Google Fit. It was compatible with all smartphones running Android 4.3 or higher that support Bluetooth LE. Android Wear features a notification system based on Google Now technology that enables it to receive spoken commands from the user.Certification
The ZenWatch had IP55 certification for resistance to water jets. It had a user-replaceable buckle-based strap. The watch had a small power key but an always-on display.The original ZenWatch was succeeded by the ZenWatch 2; both were square-shaped. On November 11, 2016, ASUS released the ZenWatch 3 that has a round face.