Apple iPhone 6S 16GB Space Grey
OS Version: iOS 9 (up-gradable to iOS 12)
It is version of software platform on top of which other programs,
can run on mobile devices.
Screen Size: 4.7 Inches, Actual size in inches measured diagonally.
Internal Memory: 16GB Up to 4000 songs or 7500 photos.
Rear / Front Camera: 12 MP / 5 MP Actual number of megapixels.