The Patch. Well, if you think GMV has any IP in the Patch market, read this from April:
https://www.marketwatch.com/press-release/global-ecg-monitor-with-patch-market-2021---industry-dynamics-statistics-data-top-operating-vendors-and-forecast-to-2026-2021-04-07
They list market leaders in the ECG patch market. See if you can find GMV in the list. The very bottom of their list is Apple.