If you're like me, you're a tech geek.  You enjoy those little things that make devices different - including different versions of the same device.  Up today, the differences between the AT&T, Sprint, and international Samsung Galaxy S 4.  The international Galaxy S 4 has the octa-core processor (a 1.6 GHz quad-core processor and 1.2 GHz quad-core processor), which differs from the 1.9 GHz quad-core Snapdragon 600 CPU that comes with the US variant.  Within the US models, there are some slight differences as well.  Icons look slightly different, signal strength indicators and LTE logos vary between devices, and more.

Did you spot a difference between Galaxy S 4 units?  Let me know what you found on Twitter @PhoneDog_Aaron!