On top of the Dock, you can write on-screen with the Scribble mode for those moments when voice dictation and canned replies won't cut it. A Control Center gives you fast access to common settings, and smart replies are available right in notifications. And if you're a fitness maven, you can share activities to compete with your friends, see more activity details at once, and get optional reminders to breathe deeply whenever you're stressed out.

There's more, such as a Home app to control your (HomeKit-compatible) smart household devices, iMessage additions like stickers and full-screen effects, emergency calls and support for Apple Pay in third-party apps. No, WatchOS 3's improvements won't make you forget about Series 2. If you already have an Apple Watch, though, it might reduce the pressure to splurge on upgraded gear.

Click here to catch all the latest news from Apple's "See You" event.