Originally Posted by libertyforall
Can you provide your Vizio source who provided this proof to you? I would like to see the definitive statement.
I never spoke to Vizio about this (not sure why you think I did). I'm just repeating what I've seen around on the forums and in reviews. I've seen conflicting reports of whether it's a 10-bit panel or an 8-bit panel, but regardless, the important part is that set can only produce 8-bit color depth. 10-bin color depth is capable of 1.07 billion colors whereas 8-bit color depth is only capable of 16.78 million colors (huge difference). Even Vizio's site will show you that the M-Series is not a "UCS" display, as the call it (Ultra Color Spectrum). For example, the Vizio P-Series, which *is* a "UCS" display describes "UCS" like this: "Experience a wider range of color and saturation for a vivid and beautiful picture that stays true to the creator's vision." Again, this is how they describe the "UCS" tag, which the M-Series does NOT carry. The P-Series DOES support 10-bit color depth - the M-Series does not - it is only capable of 8-bit color depth. The M-Series also does not support "Wide Color Gamut".
The "HDR" capabilities of a set depends on many things, including both WCG and color-depth (among other things). Simply put, while the M-Series can decode HDR streams, it's not very good at actually displaying them as intended. You can have 2 sets that are both listed as "HDR" sets and one will be way better at displaying HDR than the other. I believe that is why they came up with the "Ultra HD Premium" certification - so that buyers have some idea of how well these sets supports things like HDR.
All of this being said, since I'm officially no longer an M-Series owner, I'll now refrain from posting in this thread anymore. I purchased, exchanged and then eventually returned my M70-D3, primarily due to issues with off-axis viewing (washed out colors and "banding while panning"). I ended up replacing the M70 with an LG OLED set, which suits my needs much better (including solving the viewing angles issues).
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