Apple iPhone 4S features Siri, the dual-core A5 chip, the 8MP camera with all-new optics, 1080p HD video recording and more.

 The dual-core A5 chip delivers even more power. The 8MP iSight camera with all-new optics also shoots 1080p HD video. And if there’s anything else you need, just ask Siri.

Features

Siri

Performance

iSight Camera
1080p HD Video
iOS
iCloud
Retina Display
FaceTime


Siri.
The intelligent assistant that helps you get
things done. All you have to do is ask.

Siri on iPhone 4S lets you use your voice to send messages, schedule meetings, place phone calls, and more. Ask Siri to do things just by talking the way you talk. Siri understands what you say, knows what you mean, and even talks back. Siri is so easy to use and does so much, you’ll keep finding more and more ways to use it.


It understands what you say.
Talk to Siri as you would to a person. Say something like “Tell my wife I’m running late.” “Remind me to call the vet.” “Any good burger joints around here?” Siri does what you say, finds the information you need, then answers you. It’s like you’re having a conversation with your iPhone.

It knows what you mean.

Siri not only understands what you say, it’s smart enough to know what you mean. So when you ask “Any good burger joints around here?” Siri will reply “I found a number of burger restaurants near you.” Then you can say “Hmm. How about tacos?” Siri remembers that you just asked about restaurants, so it will look for Mexican restaurants in the neighborhood. And Siri is proactive, so it will question you until it finds what you’re looking for.

It helps you do the things you do every day.

Ask Siri to text your dad, remind you to call the dentist, or find directions, and it figures out which apps to use and who you’re talking about. It finds answers for you from the web through sources like Yelp and WolframAlpha. Using Location Services, it looks up where you live, where you work, and where you are. Then it gives you information and the best options based on your current location. From the details in your contacts, it knows your friends, family, boss, and coworkers. So you can tell Siri things like “Text Ryan I’m on my way” or “Remind me to make a dentist appointment when I get to work” or “Call a taxi” and it knows exactly what you mean and what to do.

It has so much to tell you.

When there’s something you need to do, just ask Siri to help you do it. Siri uses almost all the built-in apps on iPhone 4S. It writes and sends email messages and texts. It searches the web for anything you need to know. It plays the songs you want to hear. It gives you directions and shows you around. It places calls, schedules meetings, helps you remember, and wakes you up. In fact, ask Siri what it can do — it even speaks for itself.


Dual-core A5 chip.
The most powerful iPhone ever.
Two cores in the A5 chip deliver up to two times more power and up to seven times faster graphics.2 And you’ll feel the effects. Fast. iPhone 4S is quick and responsive, which makes all the difference when you’re launching apps, browsing the web, gaming, and doing just about everything. And no matter what you’re doing, you can keep on doing it. Because the A5 chip is so power-efficient, iPhone 4S has outstanding battery life.

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 you-can’t-believe-it’s-on-a-phone camera.

With 8 megapixels and all-new optics, this just might be the best camera ever on a mobile phone. It just might be the only camera you’ll ever need. And if you think that’s amazing, wait until you see your photos.

Mega megapixels.

The iSight camera gives you 8 megapixels — that’s 60 percent more pixels than the camera on iPhone 4. 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. So your photos look stunning everywhere you show them off — on your iPhone, your computer, or your HDTV. And they’re rendered pixel for pixel in prints as large as 8x10.
All-new optics make all
the difference.

Great photography isn’t just about megapixels — it’s about light, too. The all-new, advanced optics in this camera work together to make sure whatever light you have gives you the best image possible. 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 better. And the advanced hybrid infrared filter keeps out harmful IR light, so you’ll see more accurate and uniform colors.

Turn down the lights.
Or turn them way up.

Pull out your iPhone in moonlight, candlelight, or under little white lights. Or shoot in bright light. Like at the beach. The iSight camera captures low-light and lots-of-light moods beautifully. So darks aren’t too dark and lights aren’t too light. Even action shots are less blurry. The next-generation backside illumination sensor is engineered with increased sensitivity and a shorter exposure time to achieve the same scene brightness — colors are less saturated and you’ll see more details. And the LED flash automatically kicks in when it’s needed (but you can always turn it off).
A5 chip and iOS 5.
The power behind your photos.

The A5 chip is designed with an image signal processor that’s just as good as the ones found in DSLR cameras. It’s how you can tap to focus and control exposure. And it’s the power behind zero shutter lag. The image signal processor makes the iSight camera faster, so you’ll catch all the action as it happens. The camera also uses advanced algorithms in iOS 5 for even more color accuracy, better white balance, and greater dynamic range. When you see your photos, you’ll see exactly what that means.
This camera loves a face.

With new face detection, the iSight camera is smart enough to know whether you’re taking a portrait or a group shot. It focuses on the most prominent face in the frame and balances exposure across up to 10 faces. So you’ll definitely catch smiles. And maybe even a smirk or two.
Capture the moment in
a split second.

Think about all those fun, fleeting moments you wish you’d caught on film. Now you can open the Camera app right from the Lock screen. So when things happen fast, you’ll capture them fast. Compose a quick shot with grid lines and pinch-to-zoom gestures. Focus with a tap. Then press the volume-up button to take a photo. And suddenly, everything is a photo op.
Edit photos right on iPhone.

It’s not just an amazing camera. It’s an on-the-fly editing studio. Crop, rotate, enhance, and remove red-eye right on iPhone — without the help of photo editing software on a computer. Then organize your shots into albums, so you know where your favorites are when you want to show them off.
HDR. The best everything.
All in one shot.

Tap HDR and take a photo. The iSight camera captures three photos from that one shot, each with a different exposure level. Then it layers the shots together to create a single photo that combines the best parts of each shot. The wide range of light is more accurate in an HDR photo. And iPhone saves both the original and the HDR photo in your Camera Roll. You can clearly see the difference.
Photo Stream.
And other ways to share. With Photo Stream in iCloud, new photos you take are automatically sent to all your devices, so you can show them off on your iPhone, iPad, iPod touch, Mac, or PC.1 Post them to the web the second you take them, and they’ll be the envy of your Flickr, Facebook, and Twitter world. Share them on your HDTV with AirPlay.2 Or send your photos through iMessage or MMS. Or go old-school and send them in an email.

More info Source: APPLE