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Prototype smart ring cracks the holy grail of non-invasive blood sugar measurement
A prototype smart ring developed by engineers at the University of California appears to have cracked one of the holy grails of health wearables: non-invasive blood sugar measurement. The data is sent
9to5Mac โ 29 July 2026
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A prototype smart ring developed by engineers at the University of California appears to have cracked one of the holy grails of health wearables: non-
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