I have been using My Lenovo K4 Note from past 8 months and with my experience I can tell that it is seriously not an efficient phone
coming to Feature of this Lenovo K4 note:
1.Chip set mediatek MT6753
2.3GB RAm
3.Gorilla Glass 3
4.Camera-13MP(Rear) and 8MP(Front)
5.3300 maH Battery
6.Finger Print sensor
7.Dolby Atmos audio enhancement
In Details
coming to Sound-No need to doubt about the sound of K4 note as it supports Dobly Atmos u have dual speker in it which is really the best thing
coming to sensors-Finger Print sensor is not so efficient and others are really
coming to Speed-Processor is not so good
coming to Display-just for gorilla glasses this can be appreciated or else not a fine display specially during night times
coming to Design and looks-it is really bad mainly because of its slippery and its not completely metallic
coming to Battery Back up-its drains very easily and it doesnt even support quick charging and when ever you use small application charging goes very soon
Advantages
1.Speakers
2.Display
Disadvantages
1.Finger Print sensor
2.Battery Backup
3.Processor
4.Ease of use only for Stock android lovers
5.Not Good Style and Design
there are many good Phone at this price rate and comes with more features so its not good value for money