https://www.developer-tech.com/news/2018/may/25/samsung-set-switch-tizen-wear-os-smartwatches/

Prolific leaker Evan Blass (of @evleaks and Venture Beat fame) produced a rather interesting morsel this week: reportedly, Samsung employees have been spotted wearing smartwatches running Wear OS, rather than Samsung's own Tizen operating system.

Samsung has been committed to its homegrown platform for a few years now, with Gear smartwatches and fitness trackers exclusively using the Tizen OS, so seeing a switch to Wear OS is something of a sea change.