People have been dreaming about video calling for decades.
iPhone 4 makes it a reality. With the tap of a button, you can wave hello to
your kids, share a smile from across the globe, or watch your best friend laugh
at your stories — iPhone 4 to iPhone 4 or to the new iPod touch over Wi-Fi. No
other phone makes staying in touch this much fun.
One-tap simple.
Two cameras made for video calling.
iPhone 4 has two built-in cameras, one on the front above the display and one on the back next to the LED flash. 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. So it always presents you in the best possible light.
Share what you see with the back camera.
Imagine your sister is away at school and can’t make it to your son’s birthday. So you’re cheering her up with a FaceTime call. As the cupcakes come out, your son’s eyes light up, and you just have to share it. Tap a button, and before you can say, “Make a wish,” iPhone 4 switches to the back camera, and to the birthday boy's big moment. Another tap switches back to the front camera and to you. Simple, fast, and fun.
Thanks to the Retina display, everything you see and do on
iPhone 4 looks amazing. That’s because the Retina display’s pixel density is so
high, your eye is unable to distinguish individual pixels. Which means Text in
books, web pages, and email is crisp at any size. Images in games, movies, and
photos pop off the screen. And everything is sharper.
In a word, resolutionary.
By developing pixels a mere 78 micrometers wide, Apple engineers were able to pack four times the number of pixels into the same 3.5-inch (diagonal) screen found on earlier iPhone models. The resulting pixel density of iPhone 4 — 326 pixels per inch — makes text and graphics look smooth and continuous at any size.Brilliant, no matter how you look at it.
The iPhone 4 Retina display uses technology called IPS (in-plane switching) — the same technology used in the Apple LED Cinema Display and iPad — to achieve a wider viewing angle than on typical LCDs. Which means you can hold iPhone 4 almost any way you want and still get a brilliant picture. That’s perfect when you’re sharing photos with a friend or moving your iPhone around while playing a driving or flying game. In addition, the Retina display offers four times the contrast ratio of previous models, so whites are brighter, blacks are darker, and everything is more beautiful.Advancements in the glass. And under it.
Made from the same materials used in helicopters and high-speed trains, the Retina display glass is chemically strengthened to be harder, more scratch resistant, and more durable than ever. The glass also features an oil-resistant coating that helps keep the screen clean.The Retina display includes LED backlighting and an ambient light sensor that intelligently adjusts the brightness of the screen for optimal viewing and battery life. When you lift iPhone to your ear for a phone call, a proximity sensor immediately turns off the display to save power and prevent accidental dialing.
Now you can run your favorite third-party apps — and switch
between them instantly — without slowing down the performance of the foreground
app or draining the battery unnecessarily.* This smarter approach to
multitasking is available only in iOS 4.
Switch between apps quickly.
The multitasking user interface allows you to quickly switch between recently used apps. Just double-click the Home button to reveal your recently used apps. Scroll right to see more apps, then tap one to reopen it. No need to wait for the app to reload.And pick up right where you left off.
Apps can remember where you left off. So when you return to the app, you can jump right back into playing your game, reading the news, finding a restaurant, or whatever you were doing.Listen to audio in the background.
Now you can listen to audio from compatible third-party apps while checking email, surfing the web, playing games, and performing other tasks. So when you want to follow a ball game or listen to music from Pandora, your productivity never skips a beat.Get VoIP calls while using other apps.
Third-party apps such as Skype let you make voice calls over the Internet. Multitasking in iPhone 4 makes it possible to receive these Skype or VoIP calls while other apps are running, even when your iPhone is locked. And during a call, you can keep the conversation going while you switch to another task, such as checking a movie listing or reading an email.Keep GPS apps running.
Apps that use GPS can continue to run in the background. Not only do they constantly update your position, they can also give you spoken turn-by-turn directions even as you listen to music (the music volume lowers while the directions are spoken). It’s perfect for social networking apps, too. Now you and your friends can find each other even when you’re not actively using the app.Receive push and local notifications.
Third-party apps and services can send alerts and messages directly to your phone. So you can get sports scores, news updates, game requests, reminders, alarms, and more the moment they happen, without having to open the app that’s providing the notification.Complete tasks in the background.
If you’re performing a task that’s taking awhile — such as uploading pictures to a photo service — you can switch to another app without interrupting the task. No more waiting around.
Because your iPhone goes with you everywhere, you’re always
ready to capture every moment. And with iPhone 4, you can do it in
stunning high definition. Its advanced backside illumination sensor delivers
great-looking video in both bright and low-light settings. And in dark
environments, you can brighten the scene with the built-in LED light.
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