In short, the iPhone 5S has everything that a smartphone user wants: an amazingly fast processor, excellent build quality, a great operating system, and a good app ecosystem. With great attention to detail, the iPhone 5S is master of the largest mobile ecosystem around.
In terms of design, the phone's precision cut aluminium rear sits absolutely flush with glass panels that sit at the top and bottom. Its neat bevelled edges are perfectly formed and the 7.3mm thick phone feels incredibly comfortable in the hand.
The front of the device is "dominated" by a 4-inch touchscreen, which is a LED-backlit IPS LCD panel, with a resolution of 640x1136 pixels, offering a pixel density of 326 PPI.
The iPhone 5s houses Apple's A7 processor, which is twice as powerful as its predecessor (A6). The phone also has a motion co-processor called M7. This chip can collate data from the compass, gyroscope, accelerometer, and other sensors. M7 helps iPhone 5s check movement, speed and direction without draining battery life. ng sensor just to the left.
The iPhone 5s now comes with a new Touch ID sensor, embedded in the home button, which allows for faster and more secure logins. The Touch ID sensor communicates directly with the stored fingerprint on the A7 chip, and not even the rest of the phone can see it. Moreover, you can use Touch ID to replace your iTunes password. This is an excellent way of not having to pop in your special word over and over again.
The combination of the new processor, M7 motion process and a slightly larger battery all mean that the iPhone 5S has better battery life than its predecessor. Running at half brightness with Wi-Fi turned off, our iPhone 5S can last 14h 31m on video playback test.
