I never said the dial was new, infact Apple named the dial the "digital crown" because the traditional watches used analog crowns. A crown solved a UX issue much like the touchscreens solved the input issue of cell phones.
My point is that Samsung doesn't put UX as number one priority, they put profits as their #1 priority. Since there weren't many smart watches available at that time, they released 5 different smartwatches in a span of 400 days to see what sticks. They don't take the time to figure out what they think is good for the user, just as long as the user buys it. Once the Apple Watch was released, you could see that Samsung slowed down and only released 1-2 smartwatches every 365 days.
Apple puts UX as their number one priority. Once they figure out the UX, they figure out how much to charge the customer for maximum profits. If they don't think they can contribute something to the UX, they wouldn't release the product just for the sake of money.