The iPhone 4 has a 5 megapixel rear camera and a 300,000 megapixel front camera; It is equipped with a 45nm A4 processor; 3.5-inch Retina display with 960x640 pixel resolution; The iPhone 4 has a built-in three-axis gyroscope that works with the direction sensor to provide six-axis motion sensing. The iPhone 4 is a mobile phone product released by Apple on June 08, 2010 (Beijing time) in San Francisco, United States.
45 nanometers. The iPhone4 is powered by the Apple A4, a 45nm processor with an ARM Cortex-A8 processor and a PowerVR SGX 535 graphics processor, which has a dual-core 1GHz high-speed processor that delivers solid performance.