Dolby Vision & HDR 10 are the two standards for "High Dynamic Range" enabled TV's (and Movie Content).
Heretofore, Dolby Vision was the superior format in that it is a dynamic system while HDR 10 is a static based system. Recently, Samsung and Amazon have announced a newer iteration of the HDR 10 Standard...HDR 10+. HDR 10+, like Dolby Vision, is a dynamic format and is intended to compete favorably with the Dolby version.
All Samsung 2017 UHD TV models are presently equipped to handle the newer HDR 10+ content. As an added bonus, Samsung is adding this newest release to their 2016 UHD model TV's, via a firmware upgrade, later this year. Nice!
Clearly, Dolby Vision and HDR 10+ provide an incdredible enhancement to the picture quality. You don't have to be a Hollywood Movie Producer to appreciate the difference between HDR and non-HDR content. I have long argued that HDR enabled content is a bigger deal and more impactful, picture wise, than the 4K Pixel War being bandied about by all Dispay manufacturers. Additonally, with Amazon' s market presence, we can all look forward to enjoying the visual fruits of that symbiotic relationship.