Figures from this source
- FiledSellin units lifetime, Apr-Dec 2021 (launch quarter, released 19 November 2021), pair combined13,970,000 units
- FiledSellin units lifetime, life-to-date as of Dec 202123,900,000 units
- FiledSellin units lifetime, life-to-date as of Dec 202114,330,000 units
- FiledDefinition note, Dec 2021 table note (same wording at Mar 2022 with 'and other products' added by Dec 2022)