X51 vs. X51v screen size

[kosmicken]

I was under the impression these two models were physically identical. (I am referring to physical dimensions, not display capability or anything else electronics.) I thought I ordered an X51v screen protector, but it is slightly too small for my screen. Customer Service for the retailer says that I actually ordered an X50 screen protector (I checked -- it's true!) and they are not identical. Is this true?

[DDR]

................Yeah...I mean yes.