
Taking us by surprise, Google debuted Wear OS 4 with the launch of the Samsung Galaxy Watch 6 in August 2023. The Watch 6 was the first wearable to run One UI 5 Watch based on Wear OS 4. Meanwhile, the Pixel Watch 2 was the first smartwatch to run stock Wear OS 4.
Many Android watches are still waiting for the new wearable platform update, but select new releases come with the OS out of the box. For example, the OnePlus Watch 2 runs Wear OS 4 right out of the gate.