The iPhone 4, heralded as the "biggest leap since the original iPhone," uses an all stainless steel body design with an ultra high-density 3.5-inch, IPS, LED-backlit 960x640 326 ppi multi-touch "retina" display, mobile and data antennas integrated in the "metal band" that wraps around the ..
The iPhone 4 (CDMA/Verizon/Sprint) is similar to the previously introduced iPhone 4, apart from support for CDMA (EV-DO Rev. A, 800 MHz, 1900 MHz) rather than GSM. Although, it also has no SIM card slot, a revised antenna and button placement and support for a new 3G "Personal Hotspot" capability th..
Released only for the mainland China market, and initially launched with China Unicom, the iPhone 4S (GSM China), model number A1431, is believed to be identical to the global iPhone 4s, except that the Wi-Fi capabilities have been modified to support the "WAPI" Wi-Fi standard as required by the Chi..