Apple CEO Tim Cook announces that the Apple Watch will be released sometime in April the starting price will be $349. He also stated, Developers are hard at work on apps, notifications and information summaries that we call Glances, all designed specifically for the Watch's user interface.”
There will be three models: Watch, Watch Sport, and Watch Edition.
The Apple Watch will include an Activity app that will be able to track calories burned. It will also have a Work app that will be able to set up pacing for running/cycling and a built in heart race sensor. Also Apple Pay can be used on the watch too. Apple stated, "Double‑click the button next to the Digital Crown and...a pulse and beep confirm that your payment information was sent,"
The only downside can be that the iPhone acts as an anchor for the watch.