The iPhone 11 series passed the 100 million mark in terms of unit sales 9 months after their launch. However, the latest report from Counterpoint Research indicates that their successors have beaten them to this milestone by 2 months, thereby equalling the 6 series' record from 2015.
Then again, this series consists of 4 variants (the Mini, vanilla 12, Pro and Pro Max) compared to 2 (the 6 and 6 Plus; then again, it was so successful it got what might be thought of as a second run: the 6s and 6s Plus). Of these, the Pro Max has proven the most successful of the most recent line, with 29% of its sales worldwide.
This most expensive variant and its siblings also brought in 22% more revenue than their 11-series counterparts within their first 7 months of being on the market. Counterpoint also now reports that the iPhones 12 have achieved "a record-high market share in the US since October 2020". Those findings apply to the first quarter of 2021, although the group expects the trend to continue into subsequent quarters.