The iPhone 4 for Sprint and Verizon users has taken an upgrade from its predecessors. The new design contains otherwise-similar features. Here are the top features of the iPhone 4:

Display: The iPhone 4 features a multi-touch, 3.5-inch widescreen with 960x640 pixel retina display.
Weight: The phone weighs in at 4.8 ounces.
Camera: The 5-megapixel iSight camera features autofocus, LED flash, and photo geo-tagging. With HD video recording, you can capture up to thirty frames per second with audio.
Battery: With a built-in rechargeable lithium-ion battery, the iPhone 4 can get up to seven hours of talk time, six hours of internet usage with 3G or 10 with Wi-Fi, ten hours of video playback, and forty hours of audio playback.
Connectors: For input and output, the iPhone 4 has a 3.5mm stereo headphone jack, 30-pin dock connector, microphone, built-in speaker, and micro-SIM card tray.
4G: Although there has been some confusion on this topic, the iPhone 4 is not a 4G phone.
iOS 6: The iPhone 4 comes equipped with the iOS 4 software but is upgradable to iOS 6.1 which features innovative updates such as a brand new maps app, which includes turn-by-turn directions with data from TomTom.
Facetime: FaceTime was one of the most anticipated features of the iPhone 4. It is fairly easy to use and allows you to video-chat to another FaceTime enabled iPhone, iPad, iTouch, or Mac, when connected to a Wi-Fi network.
Pricing: The iPhone 4 is now available with 8GB for free from the Apple store or from your local Sprint or Verizon store.