http://www.techradar.com/news/apple-watch-3

Update: At today's Apple launch, where the company showed off the anticipated iPhone 8, iPhone 8 Plus and is expected to launch the iPhone X, it first unveiled the Apple Watch Series 3. Given the sheer amount of announcements, we were surprised to see that the company has updated its smartwatch, too, a new model sporting LTE.

The Apple Watch 3 is the company's first always-connected smartwatch, complete with its very own eSIM card that eliminates the need to carry your iPhone X, iPhone 8, iPhone 8 Plus, or any other model, along for the ride.