https://techcrunch.com/2021/08/11/samsung-returns-to-wear-os-with-the-galaxy-watch-4/

Samsung’s watches have long been something of an anomaly. While the company embraced Wear OS (then Android Wear) in its earliest days with the massive Gear Live, the company quickly shifted to Tizen, an open-source operating system largely used by Samsung for wearables and smart TVs.

That’s no doubt been a kind of bugbear for Google, which has long struggled to crack a significant portion of the smartwatch market. Samsung, meanwhile, has had its share of success with its products while doing its own thing. But there’s always more market share to be grabbed.