The Samsung Gear S2 is available today from a limited (but well-known) number of retailers. As a refresher, this is a Tizen-based smartwatch, but and it's compatible not just with Samsung's latest phones — the Galaxy S6 models, plus the Note 5 — but also with a large number of non-Samsung smartphones. (So long as they're running Android 4.4 and have at least 1.5GB of RAM. You can find a complete list of compatible phones here.)
And don't let the fact that this is running Tizen scare you away. As we showed in our hands-on with the watch from Germany, it's fast. And there's a lot to like about it.
So if you're looking to pick one up, there are a number of retailers from which you can choose. The Gear S2 runs $299, and the Gear S2 Classic is $349.