https://arstechnica.com/gadgets/2017/09/apple-watch-series-3-hands-on-lte-could-be-the-watershed-moment/

The Apple Watch Series 3 looks, acts, and feels almost exactly the same as the Series 2 with a key difference—LTE wireless connectivity, whether your iPhone is nearby or not. We tested the Series 3 on-site at Apple’s unveiling event, including trying just a few of the new features.

If you liked the previous model, you’ll like the Series 3. If you didn’t, there’s not much different besides LTE. But maybe LTE is what’s been holding you back—it is for a lot of people. So let’s get into it.