Hai iam teja iam using the lenovo k5 plus black colour it has 2gb ram but internal it provides 1.5 gb only rest of it will occupied by the phone it has snapdargon 64 bit processor so it speed high but it hangs at time of use to 3 to 4 hours continuously and it has 1900mah battery and it low battery backup and it stands only 2to3 hours and it able stand by 1 to2 hours only on talking so I request you not by this type phone with phone