NETWORK: GSM / CDMA / HSPA / EVDO / LTE
LAUNCH: 2013, September
DISPLAY: LED-backlit IPS LCD, capacitive touchscreen, 16M colors
PLATFORM: iOS 7, upgradable to iOS 11.2.5
MEMORY EXTERNAL: No
MEMORY INTERNAL: 16/32/64 GB, 1 GB RAM DDR3
PRIMARY CAMERA: 8 MP (f/2.2, 29mm, 1/3″, 1.5 µm), autofocus, dual-LED dual-tone flash,
SECONDARY CAMERA: 1.2 MP (f/2.4, 31mm), 720p@30fps, face detection, HDR, FaceTime over Wi-Fi or Cellular
BATTERY: Non-removable Li-Po 1560 mAh battery (5.92 Wh)
CHIPSET: Apple A7
SENSOR: Iris scanner, fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2
MESSAGING: iMessage, SMS(threaded view), MMS, Email, Push Email
BROWSER: HTML 5 ( Safari )

The iPhone 5S is the 2013 version of Apple’s popular smartphone. The last of the flagship iPhones to feature a 4-inch display, the iPhone 5S packs a lot of impressive specs under the hood and is powered by the feature-packed iOS operating system.
The iPhone 5S comes with a 4-inch display surrounded by a premium glass body. The display isn’t as large as on other smartphones, but the small size means the phone is easy to handle and use with a single hand. The screen has a Retina resolution that makes for crystal clear content with great color accuracy, wide viewing angles, and damage protection thanks to Gorilla Glass. To push the high-resolution screen, the iPhone 5S comes with the Apple A7 processor, a dual-core chip clocked at 1.3GHz for high performance and a smooth user experience.
The back of the iPhone 5S carries an 8-megapixel iSight camera. Like other iPhones, the camera might not have a high resolution, but it take stunning photos with just a single press of the shutter button without the need to play around with custom settings. The camera supports features like HDR photos, panorama, and smile detection and has a 1.5 micron pixel size to increase image quality in low-light conditions. The front camera is not as impressive as it is only a 1.2-megapixel sensor.
To store photos and videos, the device offers 64GB of internal storage. Apple doesn’t offer expandable storage, but users can opt for the company’s iCloud service to put their media on the web. Other cloud services, like Microsoft OneDrive and Google Drive, can also be taken advantage of with a quick download from the iTunes App Store.
The iPhone 5S is one of the first smartphones in India to offer support for 4G LTE connectivity. It also comes with the standard array of connectivity features, including fast Wi-Fi, Bluetooth, and inbuilt GPS. The device comes with Apple’s proprietary USB cable which can be used to connect to a PC for syncing data with Apple iTunes. In terms of battery life, the iPhone 5S is equipped with a 1,560 mAh battery for all-day battery endurance.
On the software front, the iPhone 5S is powered by iOS 7, the latest version of Apple’s operating system that packs a lot of features and advanced functionality. iOS 7 is as smooth and fast as previous iterations of the OS, with advanced security an integrated part of the package.