This phone is amazing with high speed processor, has a good storage capacity of internal 64GB and hence requires no memory card, Cyanogen OS applied and has a ram of 3GB. The model A0001 has some brilliant features like its camera having 16 MP and front camera of 8 MP. Amazing sound quality and the most important part is its battery backup. It has a high battery back up with a long durability that an android phone really needs these days. It also supports 4G and gives better calling service with any network. All these features makes it a bit costly though, but it is worth it.