Samsung Galaxy watches v Wear OS: Tizen or Android Wear - Wareable
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Samsung May Use Wear OS Instead of Tizen on Upcoming Smartwatches | Extremetech
Samsung's Galaxy Watch will reportedly run Tizen OS - The Verge
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Amazon.com: Samsung Gear S3 Classic Smartwatch 4GB SM-R770 with Leather Band (Silver) Tizen OS - International Version with No Warranty (Renewed) : Electronics
Samsung's older Galaxy Watches get handy update too