Apple Watch series 6 Nike

It is the same physical watch with the same base set of software.

The Nike means you get Nike band, Nike watch face, Nike logo.

And you can change to one of the other watch faces, you can replace the band with another, but I think you still have to see the logo.

Yes. Identical features. All the same watch faces but it has exclusive Nike faces as well. The only trade off is that there are a small number of bands to choose from. If you are happy with the bands, the Nike is your best choice. I have it in Series 4 and 6.