Today, Apple introduced the Apple Watch Series 3. The newest version of Apple's smartwatch features built-in cellular, to allow for phone calls without the need to pair with your phone, as well as a new W2 dual-core processor that enables Siri to talk on your watch. It also has an altimeter and remains the same size as the Series 2. With cellular, the new Apple Watch starts at $399, and it can be had without cellular for $329.

The Nike+ version has new color bands and an updated app.

You can preorder on September 15, for delivery on September 22.