I also have lenovo vibe p1m, its cool. Initially some problems in it like automatic flash on etc. But after resoftwere /flash my phone on it becomes superb. It’s a 4G phon with 1GH quad processor, also have 2 GB superior ram and 16 GB internal storage . It have non removal battery and it can support upto 32 GB external sd card. I am very happy to use this phone and it is also very cheap .