https://www.techradar.com/news/samsung-galaxy-watch-may-not-run-wear-os-after-all

Previously we've heard the upcoming Samsung Galaxy Watch (which may be the same product we've heard called the Gear S4) would come with Google's own Wear OS software rather than Tizen, but it now looks like that won't be the case.

Evan Blass previously claimed Samsung employees had been spotted wearing Gear watches with Wear OS software on board, but he's now clarified that these aren't devices that are set to come to market.