Why a whole chapter on the watch itself? I’m not trying to sell you one. But by understanding more about the device, you’ll be able to make smart decisions about the types of apps you should be writing in the first place. In this chapter you’ll learn about the fundamental design elements of apps that run on the watch and what your users expect of them. Maybe you’re coming to this book thinking you want to make an app for the watch but aren’t sure what kind; this chapter will help you brainstorm your app idea. By the end you’ll be able to clearly define what the watch can do and, more importantly, what your app inside the watch should do.