It's raining One UI 9 betas for Samsung devices this month. After launching the One UI 9 beta program for all of its flagship phones launched in 2023 and later and a couple of mid-range devices, Samsung has now released the One UI 9 Watch beta for the Galaxy Watch 7 and the Galaxy Watch Ultra.The beta for these 2024 watches comes a week after the Galaxy Watch 8 and Galaxy Watch 8 Classic. It is rolling out in Korea and should come to the US soon — these are the only markets where Samsung is making the One UI 9 Watch beta program available. You can sign up to test the beta version of One UI 9 Watch through the Samsung Members app.This story is developing…