The WatchKit SDK launched, giving developers their first real look at how applications will behave on the Apple Watch, due out next year.

To be expected, this is a bit of a “soft open” for functionality. Apps on the Watch will be extensions of their iOS counterpart, and will almost exclusively rely on the iPhone for processing. This indicates that you’ll almost always need your iPhone on you in order to use your Apple Watch.

This won’t be the case for long.

"Starting later next year, developers will be able to create fully native apps for Apple Watch.”

It’s unclear how fully-featured these apps will be, but more news should come down the pipeline in the next couple months.

And obviously, in the most important announcement of the day, Apple confirmed their fresh designed-in-house font, dubbed San Francisco. Look for that to be the standard in all Watch apps.

To see a more in-depth look at WatchKit’s many features, check out Apple’s press release here.

And don't miss The Verge's complete rundown of all of the WatchKit features.