The90 - Gem Personal UV Sensor - Gold

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The90 Gem is the first personal sun intelligence system — a jewelry-inspired UV sensor that measures the UVA and UVB exposure you can't see, so you can protect your skin's future i n real time. The removable sensor sits inside a gold titanium pendant and pairs with The90 app over Bluetooth. It tracks both UVA (the rays linked to premature aging) and UVB (the rays that cause sunburn) — including the exposure that quietly adds up through windows, cars, errands, and outdoor workouts. Using your personal skin profile, genetics, and habits, the app shows your estimated time to burn and tells you exactly when to reapply sunscreen, cover up, or step out of the sun. Splash-proof with up to seven days of monitoring per charge, the Gem is built to wear with your everyday jewelry. Show more