Mi note 4 is the great bugget smartphone beause of its build quality looks and a better hardware as compare to the previous redmi note 3 or other smartphone its has a great and blanced chipset Snapdragon 625 with no lagging and improved battery performance upto 4100mah its has a 4gb of ram which improves his whole performance I recommend you to buy mi note 4 for a better bettery life performance ( the only one thing its about phone is its prossor the Snapdragon 625 chipset is make at the 14nm technology and with the arm cotrax 53 which is best optimse design done by arm) and look mi roms has a great custizatiom features than other roms