The Samsung Galaxy Watch 4 (stylized as Samsung Galaxy Watch4) is a smartwatch manufactured, developed, designed and marketed by Samsung Electronics. It was announced on August 11, 2021, at Samsung's Galaxy Unpacked event alongside the Galaxy Z Fold 3, Galaxy Z Flip 3 and Galaxy Buds 2, and was released worldwide on August 27, 2021.
The Galaxy Watch 4 is the first Samsung watch to run Google's Wear OS since the Gear Live, and the first watch to run Wear OS 3, co-developed by Samsung and Google. The device largely followed the design language of the preceding Galaxy Watch Active 2 and Galaxy Watch 3, but including all new software. The watch also included EKG, body compositional analysis, and blood pressure monitoring via the Samsung BioActive sensor.
The Galaxy Watch 4 was succeeded by the Galaxy Watch 5 on August 10, 2022, and had the FE-based model on June 13, 2024.
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