Can oppowatch3pro be used in the United States?

Can be used in the United States. The ECG measurement function of this product has been approved by the US Food and Drug Administration (FDA) as a Class II medical device, and the ECG function can be tested immediately after purchase in the United States. OPPOWatch3Pro adopts a micro-arc dial processed by 3D hot pressing process, and its shape is quite unique. It's officially called wrist growth design. According to the official statement of OPPO, this micro-arc design is to better fit the wrist and improve the wearing comfort.