What do the markings and symbols on the back of a smartwatch indicate?

The smartwatch back displays several important markings. The FC logo, CE mark, and UKCA mark indicate compliance with regulatory standards for electronics in the US, Europe, and the UK, respectively, covering aspects like electromagnetic compatibility, health, and safety.

Environmentally, ROHS signifies the product limits hazardous substances, and the crossed-out wheeled bin symbol (WEEE) means the device must be recycled separately, not with general waste.

The two small metal dots are typically charging contacts, and the central circular area is usually a heart rate sensor.