Watch how far Samsung's Galaxy S8 has evolved from the original Galaxy S

After months of anticipation and daily leaks, Samsung's Galaxy S8 and S8+ finally arrive on April 21. 
The S8's got arguably the most beautiful screen ever put into a phone, packed into a sleek, elegant glass and metal design that's the result of years of refinement. But these things didn't just happen overnight.
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It's hard to believe it, but it's been seven years since Samsung launched its first Galaxy S. 
Much has cha