There is no Portuguese yet. You must have phone in English language, or you will get Chinese. Abraço
Read the thread and you will understand .
Not being picky or ungrateful but I would suggest to add the "How to flash Firmware | Resources | Font ?" in FAQ to the OP of that thread (Modified Mi Fit 4.0.6 - English, Turkish, Portuguese and others... | Apps | GeekDoing). Since everybody will have to go thru those steps it would be right there to check.
Thank you for all your work.