That ought to answer all the questions, the Samsung isn't in there but based on initial reviews you shouldn't need to spend the extra money on one with the RS2 and the Optoma HD-81LV probably being just as good for almost half the price.
“An engineer explained to us that hundreds of ear impressions were gathered in the name of research, and while each one obviously boasted its own unique shape and size, one single characteristic remained uniform across the board: the entrance into the ear canal is not a perfect circle, it's an oval.”
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That ought to answer all the questions, the Samsung isn't in there but based on initial reviews you shouldn't need to spend the extra money on one with the RS2 and the Optoma HD-81LV probably being just as good for almost half the price.