Archos 50d Helium 4G official Pictures. Archos 50d Helium 4G is a Smartphone of archos. The Archos 50d Helium 4G Android Smartphone. Announced Jul 2015. Features 5.0″ Display, Snapdragon 410 Chipset, 13 MP Primary Camera, 5 MP Front Camera, 2100 MAh Battery, 8 GB Storage, 1000 MB RAM. Archos 50d Helium 4G price starts.