Apple iPhone 4
Apple iPhone 4 is the result of everything Apple designers and engineers have learned in the last three years, all contained in a mere 9.3 millimeters, making it the world’s thinnest smartphone.
Display – The backlit LCD Retina display now boasts a pixel density of 326 pixels per inch (four times more than before), making it the highest-resolution phone screen ever. That makes text remarkably sharp, graphics incredibly vivid, and the viewing angle amazingly wide.
Glass – The iPhone 4 is situated between two panels of aluminosilicate glass (the same type of glass used in the windshields of helicopters and high-speed trains). The glass is chemically strengthened to be harder, more scratch resistant, more durable, and also features an oil-resistant coating that helps keep the screen clean.
Gyroscope – iPhone 4 is the first phone with a built-in three-axis gyroscope in addition to the accelerometer for more motion gestures and greater precision for an even better gaming experience.
Microphones – While most phones have only one microphone, iPhone 4 has two. One is for phone and FaceTime calls, voice commands, and memos. The second is for making your phone and video calls better by suppressing unwanted and distracting background sounds.
Cameras – There are two cameras – one on the front, which focuses on you, and one on the back, which focuses on everything else. The camera shoots 5-megapixel photos and stunning HD video. There is backside illumination sensor to help in low-light settings. The camera on the front is perfect for making FaceTime calls and shooting self-portraits.
FaceTime – Video calling is a reality. You can wave hello to your kids, or share a smile from across the globe. The front camera has been tuned for FaceTime. It has just the right field of view and focal length to focus on your face at arm’s length.
iMovie – With the new iMovie App you can turn your video clips into a finished movie. iMovie lets you combine and edit video clips, polish your movies with dynamic themes and transitions, add music and photos, and share your finished movies with the world.
Chip – Apple engineers designed the A4 chip to be powerful yet power-efficient. With it, iPhone 4 can easily perform complex jobs such as multitasking, editing video, and placing FaceTime calls. All while maximizing battery life.





