The Smart Ring W8 #12 in UK Size X1/2 is a versatile fitness tech device that tracks your heart rate, blood pressure, oxygen levels, and sleep patterns. With its water-resistant design, it's perfect for activities like running and jogging. The sleek black colour adds a stylish touch to this must-have sporting good for your fitness journey. Inner Diameter: 21.4mm circumference: 67.2mm
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