Apple iphone 5S is great phone in terms of style, design and reliability. I have used it from past 1 and half year and very much satisfied from this phone. This phone comes with iOS 7 which is upgradable to iOS 9.3.3. The screen having LED-backlit IPS LCD having 16M colours with screen size of 4.0 inches having(~326 ppi pixel density) protected with Corning Gorilla Glass. This device is powered by Dual-core 1.3 GHz Cyclone(ARM v8-based) and for gaming it is powered by GPU PowerVR G6430(quad-core graphics). In terms of storage phones with different variants like 16GB/32GB/64GB with having 1GB RAM of multitasking. This device comes with 8 Mega pixel primary camera with dual tone LED flash with advanced features like face detection, HDR, FaceTime.
The device powered with Non-removable Li-Po 1560 mAh battery. If you use this device full day then the battery last long for a day or more. The most advanced feature of this device is finger print scanner for protection and security and next one SIRI which is best in market till now.