The sidekick lx  has an upgraded 3.0" WQVGA (400x240 pixel) resolution screen with Sharp Aquos high-definition LCD technology, a 1.3 megapixel camera with flash, and a microSD card slot for expanded memory, and features the same iconic swivel screen as previous Sidekicks, but the overall device is slimmer than previous models. . It , otherwise known as Sidekick 4, by Sharp is said to be slimmer and weighs less than the Sidekick 3, has a 3-inch WQVGA display that is thinner and mounted on an improved swivel joint. The sidekick lx ships with a 128MB microSD card, but can support cards as large as 4GB.

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