According to the source, J1J1 and J1J2 - Mi 10 and Mi 10 Pro, respectively, are the official model numbers for the first time the company will be mentioned at an event on 7 February.  The program is expected to be launched on February 13, keeping in mind the current tense situation surrounding the corona virus, the most recent official statement by Black Shark co-founder and CEO Luo Yozo  Most likely the launch event will be online only.
Xiaomi Mi 10 will be launched on February 14 with a great design
google

For sale and actual equipment availability, for now, the source claims that sales for the regular Mi 10 will go live on February 14.  For the Mi 10 Pro, a pre-order campaign can kick-off until early February 10 with CNY 100 deposits.  Mi 10 Pro units will then start shipping from 18 February.


Xiaomi Mi 10 will be launched on February 14 with a great design
google
Most leaks agree on both the 108MP Samsung main camera, the Pro will come with an additional snapper sporting.  The Pro will feature 6.4 inches, FullHD +, 120Hz OLED panel, Snapdragon 865 with up to 16GB of RAM.  Also, a 5,250 mAh battery with a fast charger of 66W and full top-up time of just 35 minutes.
Xiaomi Mi 10 will be launched on February 14 with a great design
google
As far as price is concerned, Xiaomi Mi 10 and Mi 10 Pro phones are expected to be priced between 3,500 yuan and 5,000 yuan.