Screen size-:
Xiomi redmi note 4 has a 5.50inch nice touch display with 1080* 1920 or full hd display with 401 ppi( pixel per inch)
Hardware-:
Note 4 has 2GHZ octa-core Qualcomm Snapdragon 625 processor with gives user a smooth multitasking performance it has a 4gb ram for better flow of apps and 64gb internal space for your games music and some movie collection if you dont have a pc or lappy and you can expand it to 128gb
Camera-:
It has 13mp rear and 5mp front camera good for pictures and a little bit good for selfies
Other specifications-:
It has marshmallow update wifi enabled gps Bluetooth infrared otg support headphone jack 2sim slots both lte supported and all type of sensors