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smart ring: This smart ring monitors temperature, can detect Covid-19 early even if symptoms are subtle - The Economic Times
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Fashion Men's Ring Magic Wear NFC Smart Ring Finger Digital Ring for Android phones with functional couple stainless steel ring|Rings| - AliExpress
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Apple ring concept mimics the Apple watch design to amp up their wearable game up by a notch! - Yanko Design
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Amazon.com: Smart Ring, NFC Multi-Function Smart Rings Magic Wearable Device Universal for Mobile Phone, Connecte to The Mobile Phone Function Operation and Sharing of Data(7in) : Electronics
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