How to Tell an iPhone 4 from a 4s: Differences Explained

Quick and easy ways to spot even the smallest differences between an iPhone 4 and 4S Perhaps you have recently received an older iPhone as a gift or are in the market to buy a used iPhone. The iPhone 4 and iPhone 4s are almost identical

Used iPhone 4 vs 4s: Which should you buy?

Cracking Open the Apple iPhone 4S

How to tell the difference between a Real and Fake iPhone 4 and 4S

iPhone 4 vs. iPhone 4S, Left: iPhone Right iPhone 4S

Sound quality of iPhone 4/4S - Articles - SoundExpert

iPhone 4S Review

How U.S. Carriers Fool You Into Thinking Your iPhone 4S Is Unlocked

The Difference Between LCD and OLED Screens (and Why It Matters for Your iPhone)

What's the difference between iphone 4s and 5