The Samsung Galaxy S4 is finally here, bringing with it a 5-inch screen, Exynos OCTO processor and a 13-MP camera and a host of features
SCREEN
The 4.99in Super AMOLED display is gorgeous. It has a Full HD, 1,920x1,080 resolution with a high pixel density of 441ppi. While that's certainly impressive, the
HTC One has the same resolution but a smaller screen, so a higher pixel density of 468ppi and the
Sony Xperia Z has the same size screen and resolution, so has a matching 441ppi. What's important is that on all three phones everything looks pin-sharp and there's no danger of spotting individual pixels.
PROCESSOR
The phones at the event were kitted out with Exynos octo-core processors running at 1.6GHz. It's not strictly an eight-core phone, though, as it uses ARM's big.LITTLE architecture. The eight cores are divided in two, with four high-power, complex cores to do the heavy lifting and four smaller, power-efficient cores for more mundane tasks. The S4's architecture is designed so that the phone can switch seamlessly between the different types of core.
BATTERY
The battery on the S4 is an impressive 2,600mAh. That's around 500mAh bigger than the S3's battery and bigger than the vast majority of batteries used in smartphones today. With such a big battery it shouldn't have any problems providing all-day power.
CAMERA
The camera has been upgraded to a 13-megapixel model. It has a Backside-illuminated (BSI) sensor for better low-light sensitivity, although there's also a flash for when it's really dark. We took a few test shots in the dark demo hall and they looked fine on-screen, but actual quality tests need to wait until we have a test handset.
At the front is a 2-megapixel BSI camera. While it can be used for video calling, it can also be used with Samsung's Dual Camera mode, which lets you superimpose a shot from the front camera on the footage from the rear camera. In practice, this means that you can have your floating head, bordered by a postage-stamp frame imposed on the picture taken by the main camera. It feels a little gimmicky.