Hello,
What is the difference between watch face studio and galaxy watch studio for tizen?!
WFS for Wera os(gw4,gw5), GWS for Tizen os(gear s3, gw3)
You can use Watch Face Studio to design watch faces for Samsung Galaxy Watch 4 and 5 and also Wear OS Smartwatches (Pixel Watch, Fossil, Ticwatch, etc).
You can use Galaxy Watch Studio to design watch faces for older Samsung Tizen OS smartwatches such as Galaxy Watch 3, Galaxy Watch, Gear S3, Gear Sport, Gear S2 (Gear S2 needs a much older version of Galaxy Watch Studio).