Pantech Vega LTE EX IM-A820L official Pictures. Pantech Vega LTE EX IM-A820L is a Smartphone of pantech. The Pantech Vega LTE EX IM-A820L Android Smartphone. Announced Jan 2012. Features 4.5″ Display, 8 MP Primary Camera, 1830 MAh Battery, 16 GB Storage, 1000 MB RAM. Pantech Vega LTE EX IM-A820L price starts.