Display: The Note 4 has 5.5" 2.5D arc screen (1920x1080). This means that the Note 4 has a clean curvy look. The arced screen leads right off to the edge of the phone.
System: The Note 4 is powered by MIUI 8 (Base on Android 6.0 OS) and runs on the Snapdragon 625 octa-core 2.0GHz processor. This is a heck of a budget phone considering the hardware. With 4GB RAM and 64GB ROM, the Note 4 competes with many other more expensive models.
Camera: The camera setup on the Note 4 is something worth looking at. The front of the phone has a 5.0MP camera and the back has a 13.0MP Camera.
Other features: Some other features include Dual SIM capabilities, 4G LTE, WIFI, Bluetooth, GPS location, etc. The Note 4 is just another great example of what you can buy on a budget.
(For a more detailed look at the Redmi Note 4 see "Specifications")Networking: 2G:GSM 850/900/1800/1900MHz3G:WCDMA 850/900/1900/2100MHz4G:FDD-LTE 800/850/900/1700/1800/2100/2600MHz(B1/3/4/5/7/8/20), TDD-LTE B38/40