Former Fitbit Executive Unveils New Necklace That Tracks UV Exposure

A startup called The90 has launched 'The Gem,' a smart necklace designed to track real-time UV exposure and provide personalized skin health advice via an app. The product was developed by a former Fitbit executive to help users manage sun safety.
Why it matters
The device represents an expansion of the wearable technology market into specialized health and wellness monitoring.
It's called The Gem and there's an associated app with actionable guidance.
The article provides a factual overview of a new product launch without promotional bias.
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