Here's the Apple Watch

Apple is holding an event in San Francisco to go over the final features of the Apple Watch, which will launch in April.

The event is happening now, and we're filling in this post with the latest information as we get it.

After the event, come back to this post for literally everything you need to know about the Apple Watch.

Refresh this post to get the latest info.

Here's what you need to know:

• There are three versions: aluminum, steel, and 18-karat gold.
• It has accurate time measurement, within 50 milliseconds of the UTC.
• You can change the watch faces.
• Glances feature: Let's you swipe up to check things like weather, calendar, heart rate, control your music, etc.