apps the user has to launch and quit before thinking really hard about how you could react to a specific location, activity, time of day, or something happening in the cloud. Contextual card in the stream: Bridged notifications, such as new message notifications, are pushed to the wearable from the connected handheld using standard Android notifications. Contextual notifications, such as an exercise card that appears when you begin running, are generated locally on the wearable and appear at contextually relevant moments. Full screen UI app: 2D Picker is a design pattern that allows the user to select from a set of items, such as to select an artist then an album. Custom layouts are also possible where apps need to extend beyond the basic card/stream metaphor, such as to present a graph or map. Keep your app always-on if you have information that refreshes or stays relevant, without draining the battery.
Design for the corner of the eye Don’t be a constant shoulder tapper The best experience on a wearable device is when the right content is there just when the user needs it.