ABSTRACT
Android is most commonly used operating system now days in mobiles. It has different features out of which
power management, kernel enhancement, Dalvik virtual machine, connectivity and Skype have been discussed.
Bench mark testing of different versions of android Operating systems also focused using security apps. It has
found that Android operating system is the most suitable for fulfilling customer needs in growing era.
Keywords: - Dalvik, Linex kernel, Power, Remote Security