8. Lollipop- The newest form of Android

Android 5.0 "Lollipop" is the latest version developed by Google. One of the most prominent changes in the Lollipop release is a redesigned user interface built around a responsive design language referred to as "material design".

Other changes include improvements to the notifications, which can be accessed from the lockscreen and displayed within applications as top-of-the-screen banners.

9. Samsung Galaxy Note 4- the best Smartphone ever

The Galaxy Note 4 introduces a new sleek and stylish Galaxy design wonder of a premium metal frame and fluid curvature with Galaxy’s inherited 2.5D glass screen and soft-textured back cover.

The precise color saturation and the high contrast of 5.7'' Quad HD Super AMOLED display will drive you to feel the fluent and vivid colors of the nature. The phone carries a 3GB RAM and 32GB Internal memory. One can click the best of best clicks with the 16MP rear camera and selfie lovers can make use of its .7MP + F1.9/ Selfie (90º), Wide selfie mode (120º) front camera.

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