Android 4.1 Jelly Bean has been something of a revelation among those using Google’s mobile operating system, since it’s the first time Android has seemed as though it can compete with Windows Phone and iOS in terms of smoothness. Ice Cream Sandwich was a vast improvement on Gingerbread / Honeycomb, but even with some devices packing in quad-core processors, Android smartphones and slates were still susceptible to more than their fair share of lag.

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