The most basic feature lagging phone I have ever observed these days is Lenovo K3 Note.
Lets us first see the pros and then I wish to let us know the cons.
Most of the phones features are plus to this model of lenovo. Few among the pros include its price ( 9, 999/-) , screen resolution ( satisfactory) , user friendly device with good cameras ( both front and rare) . Its touch feature is just awesome.
Coming to Cons, this model missed the basic necessity of a cal during playing an audio. In other words, while to listen to an audio and if you receive a cal at the same time the audio doesnot go to pause mode, instead the audio file will still be playing and the cal that you receive rings silently just because your audio is being played at the same time. If you are using an earphone to listen to the audio files while doing your work, then unknowingly and unfortunately you will never know that you missed a cal untill you see it. : ( Strange but true. I am pissed off for this. : (
It also hangs up all of a sudden and it takes 1-2 minutes to retain.