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Smart ring to carry and make digital payments? A Kerala startup dreams of cardless and cashless future - India Today
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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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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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This wearable smart ring detects cab driver's alcohol levels to keep passengers safe from harm's way - Yanko Design
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