Superb phone. Built quality excellent.
jio runs superb, very fast . sleek design.
battery is the most important part of this mobile, 4100 mah battery will give you enough juice to run the phone for two days if you are soft moderate user.for regular users it will give you one day battery back up very easily.
hardcore users will get 7 hours screen time.
Dual apps support is there, you can have two facebook, two whatsaap, two imo at a same time.
Checked with the normal light, outdoor condition, low light, outdoor photo is superb. indoor & low light photos are bit lower quality.
touch is smooth and super responsive.
sound is on, not so good. it could have better .(the lenovo k3 note has better sound than mi note 4). its better then mi note 3 .
But minor problems are there, such as.
glass is very poor quality, got scratched.
voice call sound input is a disaster.
if you unplug your earphone while listening music will not stop it, it will be playing in your phones speaker.
overall satisfoed with the phone.