Apple iPhone 4S

The disappointment that accompanied the announcement of an iPhone 4S last week was largely because it didn’t look much different to an iPhone 4. With all of the pre-launch hype about a completely redesigned ‘iPhone 5’ with a larger screen and perhaps a more robust case, that disappointment is perhaps understandable.

It’s amazing, then, that with Apple Stores taking pre-orders from this week, more than one million iPhone 4s have already been sold worldwide.

I’ve been using the iPhone 4S over the past few days, and two days prior to its official Australian release, can share some insights into how different it is from the iPhone 4 it updates.

First looks

On the outside, it’s not easy to tell the two models apart. There are a few cosmetic differences between the 4 and 4S however, the main being that the silent/mute switch has been moved slightly downwards. I discovered this while inserting the 4S into an iPhone 4 case; the hole for the silent/mute switch didn’t match up, so you’ll probably want a new case or ‘bumper’ if upgrading from an iPhone 4.

The iPhone 4 on the left has a different mute switch location to the iPhone 4S on the right.

Inside, however, things are very different and there are some major hardware changes, including a new processor, graphics, camera and optics, antennas, memory capacity and a few other bits.

Dual core A5 Processor

First, Apple has added its A5 dual core processor, similar to the one used in the iPad 2, which Apple says produces about twice the processing power of the iPhone 4 and seven times the graphics performance. While this chip is not quite as fast as the A5 version found in the iPad 2, it’s certainly not too far off.

In real-world use, the phone is very responsive and quick to load apps, but the real benefits come from the added graphics power. I tried a couple of graphically rich first-person games, including Infinity Blade and ShadowGun, and was very impressed with the result – the in-game worlds look stunning, with realistic lighting effects and detailed textures, and the fast-action movement was very fluid and hard to fault. And considering the large number of games available through Apple’s App Store, the iPhone 4S stands as one of the best portable gaming platforms available.

Another benefit of having the A5 processor in both the iPad 2 and iPhone 4S is that developers can now create applications for a common platform. This should result in better and more innovative apps as developers gain experience working with the A5. It should also reduce the time needed to develop the same app for iPhones and iPads.


While the launch of the iPhone 4 was overshadowed by problems with its antenna, Apple has made doubly sure that this is not a problem with the 4S. This has two separate antennas, both built into the stainless steel ring around the phone. The two-antenna system is designed to improve call quality as it can dynamically switch between antennas to achieve the best signal.

My iPhone 4 is connected to the Telstra Next G network, and in our metropolitan test area, I can’t say I saw much difference in signal strength between it and the 4S. This might be different when the 4S is used on other networks, or in rural areas, however.

More noticeable, though, are faster download speeds, with the iPhone 4S supporting 14.4 megabit per second downloads versus 7.2 megabits on the iPhone 4. Loading web pages is definitely faster (on Telstra’s Next G network), and sending picture attachments and picture messages is quicker too.

While I would have liked to see support for LTE (4G) networks in the 4S, it’s still early days for this technology, and I’d expect this to be included in the next iPhone.


Many other smartphones already offer 8 megapixel cameras, and the iPhone 4S has finally caught up ­– and then some. The new 8 megapixel camera now has enough resolution to create 8 x 10 inch photos at pixel-to-pixel resolution (and has 60 percent more pixels than the iPhone 4’s 5 megapixel camera). In video mode, you can film 1080p movies at 30 frames per second.

The new lens has an aperture of 2.4, which is great, both for the amount of light let into the lens, and it can produce a shallow depth of field –– a photographic effect where the background is softly blurred while the subject is in focus. The system allows more light to hit the photo sensor (CCD), which helps produce more realistic colours, better white balance and improved face detection accuracy.

What’s more, Apple has improved the camera in the area that matters most: it now performs better in low light, so there is less blur from camera shake.

Plus, you can now quickly access the camera from a button that appears on the lock screen, and use one of the volume buttons as the shutter button when holding the camera in landscape orientation. Also, because of the faster A5 processor, the time the phone needs between photos is less, so you can be ready to shoot about half a second after your last shot.

So, while the camera in the iPhone 4 was already pretty good, the one in the 4S is fantastic.

The image quality is noticeably better with photos shot on the iPhone 4S.


Now, once you’ve taken a photo, you can do some basic editing on the phone itself, including crop, red-eye reduction and colour adjustments. For photo-enthusiasts, gridlines and a focus lock is available, as well as a ‘pinch-to-zoom’ feature. The LED flash looks to be unchanged from the iPhone 4.

The 1080p video mode produces some very impressive results, partly because of the high resolution and frame rate, and partly because of the video stabilisation feature. The latter helps get rid of the ‘camera shake’ effect that most hand-held phone videos suffer from, and makes videos more enjoyable to watch.

Like the iPhone 4, you can trim videos, but you’ll need iMovie for more advanced ‘on-phone’ editing.