HP Slate7 VoiceTab official Pictures. HP Slate7 VoiceTab is a Smartphone of hp. The HP Slate7 VoiceTab Android Smartphone. Announced Jan 2014. Features 7.0″ Display, Marvell PXA1088 Chipset, 5 MP Primary Camera, 2 MP Front Camera, 4100 MAh Battery, 16 GB Storage, 1000 MB RAM. HP Slate7 VoiceTab price starts.