Onkyo's LS7200 soundbar supports both Dolby Atmos & DTS:X. It also comes with Airplay, DTS Play-Fi and FireConnect - but requires a separate "AV Center" box
The software update adds DTS:X pass-through and support for Dolby Atmos in more apps, including Plex. Android TV version 7.0 - Nougat - is still pending
Philips is bringing Dolby Atmos to the living room with a new soundbar named Fidelio B8. It will launch in Europe in October and be cheaper than Samsung's
Samsung is using the IFA show in Berlin to introduce HW-K950 to Europe. However, if you want the Dolby Atmos experience in the living room you have to dig deep in your pocket