Apple iPad 4 Cellular - Sony Xperia Tablet Z Wi-Fi, Which one to buy

Apple iPad 4 Cellular - Sony Xperia Tablet Z Wi-Fi, Which one to buy : iPad 4 Wi-Fi + Cellular and Xperia Tablet Z Wi-Fi, Both phones compared by: Dual-core, 1 GHz Cortex-A9, 1536 x 2048 pixels, 9.7 inches, Quad-core, 1.5 GHz Krait, 1200 x 1920 pixels, 10.1 inches, Camera, Memory, Radio, Display, Battery Life, Display ... Subcribe for more