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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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Pi Ring Pro - India's First Advanced Sleep Tracking Smart Ring – Pi Ring - India's First Smart Ring for Fitness, Stress, Sleep & Health.
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boAt's first Smart Ring with heart rate, body temperature and 4 other health trackers launching in India soon - India Today
A new Smart Ring patent from Google hints of using their Soli Radar technology to control mobile devices with Hand Gestures - Patently Apple
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