Since the launch of the first-gen Redmi Note back in 2014, Xiaomi's Redmi Note series has consistently offered the best value for money in the mid-range segment. The company has announced that it has now sold a hundred million Redmi Note phones, with the Redmi Note 7 duo accounting for a fifth of that figure.
https://www.notebookcheck.net/Xiaomi-celebrates-Redmi-Note-series-sales-milestone-that-shows-its-dominance-in-the-mid-range-segment.439832.0.html