Hi,
Congratulations on your purchase!
Yes, to confirm, if it looks like the unit in the second photo in John's post above, that's a second-generation Cinema One. You can download DVD-quality SD and Blu-ray quality HD movies to this player from our movie store, and the player does support Dolby Atmos (and DTS:X) object-based audio on many titles. When you shop for movies using a web browser or our mobile app, we indicate which movies have these object-based formats.
As noted by others, the Cinema One does not support 4K content. 4K support was introduced with our Strato player series.
Note that nearly all 4K movies we offer also have HD versions available. If you think that you will upgrade to a Strato in the future, you may want to...