cnet.com — A hundred greenbacks is a respectable chunk of change, but when it comes to personal electronics like the ultra-personal smartphone, $100 is a darn good deal. Since the smartphone operating system remains the same across handsets from the most entry-level to the most premium, what a price hike usually gives you is a step up in features -- like LTE or HSPA+ 42 support, a faster processor, and more premium camera components, for example.