Key features iOS 5 with iCloud integration Quad-band GSM and quad-band 3G support with 14.4 Mbps HSDPA and 5.76 Mbps HSUPA Dual-band CDMA and CDMA2000 1xEV-DO support 3.5" 16M-color LED-backlit IPS TFT capacitive touchscreen of 640 x 960 px resolution Scratch-resistant glass front and rear, with fingerprint-resistant coating 1GHz dual-core ARM Cortex A9 CPU, PowerVR SGX543MP2 GPU, Apple A5 SoC 512MB of RAM Voice recognition,
Siri virtual assistant 8 MP autofocus camera with LED flash and touch focus 1080p video recording at 30fps Wi-Fi 802.11b/g/n, Wi-Fi hotspot GPS with A-GPS connectivity; digital compass 16/32/64GB storage options Accelerometer, proximity sensor and a three-axis gyro sensor Active noise cancellation with a dedicated secondary microphone Standard 3.5 mm audio jack, stereo Bluetooth v4.0 Excellent audio quality Slim waistline at only 9.3mm Secondary front-facing VGA camera Built-in Picture and Video editors Rich AppStore New antenna design and improved signal reception in poor signal areas
Main disadvantages MicroSIM card support only No Flash support in the web browser No true multitasking for all applications FaceTime video calls work only over Wi-Fi No file transfer over Bluetooth or USB Mass Storage mode(independent from iTunes) No FM radio No stereo speakers No microSD card slot Non-user-replaceable battery Siri still a beta, location services not enabled outside US Stuck with iTunes for loading content