The Android Wear app for iOS works with The models iPhone 5, 5c, 5s, 6 and 6 Plus that work iOS 8.2 or later. At the moment only users of the LG Watch Urbane model but its scope will be expanded to Huawei, Asus, Motorola and presumably TAG Heuer models as well.
What does the app do and what doesn't
According to Google reports on its blog, users will be able to check directly from the watch who called you, messages and notifications from your favorite apps. They can also monitor your fitness progressand, through Google NowThey will receive specific warnings, such as traffic information, the status of their flights or weather forecasts.
However, will not have full functionality like that of Android phone users. For example, for now, iPhone phone users will not be able to use third party Android Wear apps what are available on Google Play.