IPhone 5, 5c, and 5s comparison and case?

What is the difference between all types of iPhone 5? (Including old 5) is it worth upgrading to 5c from 5? Also can I use 5C case on 5? Thks

The iPhone 5c has rounder edges then the iPhone 5.

If your on a iPhone 5, do not upgrade to the iPhone 5C. The C in 5C stands for color. The only thing better about the iPhone 5C is that the graphics on the iPhone 5C is better. Their main focus on the 5C was to make the camera better, and better graphics. Its also all plastic, so it cost less. People with an iPhone 4S or lower can upgrade to this phone when your contract is over, it cost $99.

If your on an iPhone 5, I definitely recommend to upgrading to the iPhone 5S. If your like me, the new features gets to me and I want it. They spent $512, 000, 000 to buy the company that does the finger scanner, so now apple own that finger scanning company, and they have put it on the iPhone 5S! You can set your finger on the home button, it will recognize it and it will unlock. You do not have to put in the password if you place your finger for (x) amount of seconds. They also introduces really nice looking colors on the phones, i really recommend you go check out apple's website and look at it.

About the case, there all the same size. You should be able to use a the same case from the iPhone 5 to the iPhone 5S, and iPhone 5C.

IPhone 5: A6 Processor Chip, 8-megapixel camera, 4G LTE bands 4 and 17
IPhone 5c: A6 Processor Chip, 8-megapixel camera, Variety of custom colors, 4G LTE bands 2, 4, 5 and 17 (faster and more coverage)
Iphone 5s: (Black, Gold, or Silver,), A7 Chip and 64 bit architecture, M7 motion processor chip, better camera overall (lighting, faster, burst, new software and features), finger print scanner on home button, knows EVERYTHING that you're doing (i.e.walking, running, sleeping, driving), better battery, 4G LTE bands 2, 4, 5 and 17

IMO, the 5c is gonna be for kids because there isn't a huge step-up from the iphone 5. The 5s undoubtably has way newer and more specs than both the 5 and 5c. However it also seems like the NSA's dream come true for spying on you and having personal stuff like where you go, what you do, and YOUR fingerprint. I won't tell you what you should buy, but the 5s may have nicer features, but imagine what Apple and the NSA does with your personal information.