Redmi Mobile's version 699, Unicom's version 799, why? ! ! ! ! !

Because Unicom version adopts foreign technology and mobile version adopts domestic technology, Unicom version (WCDMA) needs to pay more technical patent fees than mobile version, and the price is higher than 100 yuan. However, it is estimated that the patent fee is not as much as 100, and Xiaomi Company is also trying to find a better integer.