On the software front, Lenovo K4 Note runs the outdated Android 5.1 Lollipop operating system out-of-the-box with the Vibe UI on top, that is similar to the UI of many Chinese phone manufacturers but at an improved level of optimisation. The UI looks completely different from stock Android UI. At its heart, the Lenovo K4 Note includes an octa-core
MediaTek MT6753 processor that has eight Cortex-A53 cores clocked at 1.3GHz. Performance is smooth and one can switch between apps without any lag issues as there is 3GB of LPDDR3 RAM. You can afford to work on multiple apps without worrying about the device to slow down. Coming to the graphics department, the graphics are handled by Mali-T720MP3 GPU consisting of 3 cores for processing graphics, it is not great for heavy gaming but can handle the mid-range games pretty well. As far as storage is concerned, the K4 Note comes with 16GB of internal space which can be further expanded up to 128GB using the microSD card.