The included features of a smartwatch would truly depend on the smartwatch in question. However, many of them allow you to view notifications from your device directly on your wrist, including messages, calls, and alerts. Most smartwatches also track your daily activities or fitness and can even log your location via GPS (if you wanted to track a run, for example). With some smartwatches, you may even be able to access Google assistants, Siri, etc. right from the smart accessory.