Dual-core A5 chip.
iPhone 4S is great for gamers. The A5 chip pushes graphics up to seven times faster. So games run smoother and they’re even more realistic. And graphics-intensive apps perform even better.
The dual-core A5 chip delivers up to two times more processing power, which makes iPhone 4S even more responsive. Pages load quicker. Gameplay is better. And everything just feels faster.
The power-efficient A5 chip and iOS 5 deliver outstanding battery life. So you can keep making calls, checking email, playing video, and browsing the web.
Camera
The iPhone 4S camera gives you 8 megapixels — that’s 60 percent more pixels than the camera on iPhone 4. And they’re engineered with a higher, full-well capacity to collect even more light. With more megapixels and more light, you’ll see a dramatic difference in the resolution and details of your images.The custom lens uses five precision elements to shape incoming light, which makes the entire image sharper. The larger f/2.4 aperture lets in more light, so photos look brighter. And the advanced hybrid infrared filter keeps out harmful IR light for more accurate and uniform colors.
Touch up photos right on your iPhone — without the help of photo editing software on a computer. You can crop and rotate photos, enhance the image overall, and even remove red-eye.
Video recording
Record amazing 1080p HD video at 30 frames per second. The advanced backside illumination sensor and larger aperture let in even more light. Improved auto white balance makes color even more accurate. And temporal noise reduction helps you take great videos in low light.Video stabilization removes unwanted motion caused by unsteady hands. And if you’re recording a scene with subjects in both the foreground and the background, the camera focuses where you want with a tap.
It’s easy to edit your HD video right on iPhone. Just drag to select start and end points on a filmstrip to trim your clips. Or make a mini-blockbuster in iMovie with Apple-designed themes, titles, transitions, and even a soundtrack.
iOS
You know how to use iPhone from the first time you pick it up. That’s because the revolutionary Multi-Touch interface in iOS was designed for your finger. And the simple, beautiful Home screen is the easiest place to start. From built-in apps to over 500,000 apps available from the App Store. From making a FaceTime call to editing a video with iMovie. Everything you touch is easy, intuitive, and fun.>Notification Center
It’s the one place where you’ll see what’s up. iPhone works with your apps to let you know about missed messages, calendar invitations, friend requests, and more. New notifications appear discreetly at the top of your screen. And you can see a summary of recent notifications when you swipe down from the top of any screen.>Messages with iMessage
Now you can text it up with fellow iPhone, iPad, and iPod touch users running iOS 5. Messages with iMessage are unlimited.1 And secure, too. Talk to all your friends or family at once with group messaging. See who’s reading with delivery and read receipts. And if words aren’t enough, send photos, videos, locations, and contacts.>Reminders
You’ll never miss an important deadline, errand, or grocery item thanks to Reminders. Create lists of things to do that you can check off as you go. Even add due dates and locations — pick up mustard at the store after work, for example. Reminders knows exactly when and where to send you an alert.iCloud
With iCloud, the music you buy in iTunes appears automatically on all your devices. You can also download your past iTunes purchases. So your music collection goes where you go.With Photo Stream, you can take a photo on one iOS device and it automatically appears on all your other devices, including your Mac or PC. Your photos show up, just like that. And you can show them off everywhere.
iCloud can automatically keep your presentations, reports, and other documents up to date across all your devices. Even when you update them, they're updated in the cloud automatically.