Even though this smartphone is packed with awesome features and specs, it comes with its own disadvantages.
Lenovo K4 note is runs on the Android 5.1 Lollipop OS, Lenovo missed the latest Android Marshmallow update in it and also do not give any confirmation about the future update of Marshmallow.
The smartphone neither supports HDMI port nor MHL out.
Lack of fast battery charging is a big drawback of the K4 Note because now a days all the mid budget smartphones offering this feature.
The smartphone can generate heat during playing games, multitasking. The heating is not so major but the users will feel warm under normal usage on the back, more heat will generate during browsing on 3G network.
The inclusion of unnecessary apps is one of the main issue in the phones. These apps runs on the background and consumes storage of the phone.