Three variants available:
2GB+32GB=9999/- 3GB+32GB=10999/- 4GB+64GB=12999/-
All variants just have the difference of just ram and rom otherwise all are same in other specifications, so you can go according to your need. But according to me 4gb variant is quite budget friendly and with more ram means more power in your hand.
As xiaomi is already successed Indian market and after winning a lot of hearts with note 3 I think everyone now trust this brand and have a quite good idea about it.
SPECIFICATIONS:
1) Note 4 comes with a screen size 5.5 inch full HD ips display with 1920*1080 resolution.
2) And like old successor series this one also come with reading mode which works very good and does not stress your eyes.
3) In this series xiaomi has also used a 2.5d glass with round edges on display to keep the phone thin.
4) And if talking about power this features a qualcomm snapdragon 625 processor, that means it can handle anything that you can think of doing. Can do multitasking and the Adreno 506 GPU make sure that you always get top class graphics.
5) This comes with android marshmallow operating system with MIUI 8.(MIUI 8 is the update of user interface mi provide which now offers more stability and ease of use).
6) The phone is packed with a powerful 13 megapixel rear camera and 5 mp front camera both with f 2.0 lens and 5 piece 77 degree wide angle lens that can capture some great details in all your photos and auto focus for quick in focus shots.
7) The 4100mah battery is already too powerful and fabolous that make this device last too long.
8) Other features like LTE support, 175g weight, wifi, bluetooth 4.10, infrared, 3.5mm audio jack, dual sim slots, proximity sensor, accelerometer, ambient light sensor, gyroscope.
N cons I think other than hybrid sim slot which is also negligible in 64gb variant.