Contrary to previous belief, the Galaxy Watch4 has not been announced during the MWC. Instead, Samsung is debuting its new smartwatch at a special Unpacked event "later this summer". The Watch4 will run Wear OS with on top of that Samsung own interface called One UI Watch.
Samsung is doing something similar with Android for mobile phones. One UI is the interface that runs on top of Android. It has its own layout with unique set of functions. Manufacturers find an own Android skin important because it allows them to distinguish themselves from others. Samsung is going to do the same for its smartwatches. One UI is the name that Samsung uses for this, and it will now get its own smartwatch version.
The most important thing about One UI Watch is its close relationship with One UI for Android. Apps you install on your phone will also show up on your watch. Settings are also synced between the two. Calls you block on your Galaxy phone will also stop coming through on your watch. The Samsung Galaxy Watch4 will be the first smartwatch with One UI Watch. The announcement will take place later this summer during a special Unpacked event. It is not inconceivable that other products will be announced there as well. Possibly these include the Galaxy Z Fold 3 and Flip 3
Support for Tizen smartwatches
Owners of an older Galaxy watch running Tizen don't have to worry for now, according to Samsung. Samsung promises 3 years of updates for Tizen watches from the time of launch. Tizen may have reached the end of its life, but the same doesn't apply to Tizen smartwatches for now.
