Phone is good.this mobile run on marshmallow version with volte support.
3 gb ram with 16 gb rom.
Its not waterproof.
sometimes hotspot not working properly.
Features like Micro-screen and vr mode is inbuilt in this phone.
One of the best thing in this phone is super power saver which is very good when your battery is not much.
Run dolby atmos on front facing two inbuilt speakers.
In this range this mobile is better then vivo or appo.
Lenovo vibe k4 note confirm get nougat 7.1.1 update soon.