Hands-on with the Gem necklace UV tracker: it flagged exposure even in the shade(theverge.com)
Writing language: KoreanRead in the original language
Plain summary
- The Gem from The Ninety is a neck-worn sensor that measures UVA and UVB separately. Its app shows changes in exposure, sunscreen reminders and a daily sunlight score.
- With a profile that includes skin type, sensitivity, clothing and sunscreen details, the app estimates things like vitamin D production and the time left before sunburn.
- A reporter from The Verge got an alert that UV exposure had risen sharply while sitting in the shade of a parasol. The reporter also learned later that a medication they take increases sensitivity to heat.
- The reporter could not independently verify the sensor's accuracy. On an iPhone, measurement stopped when the app was fully closed, and the estimates for vitamin D and time left before sunburn changed greatly within a few minutes.
Editorial opinion
O: If you often run outdoor events in a very sunny place like LA, this could be worth trying to compare UV readings in the shade and in direct sunlight.
X: The reporter could not independently verify the sensor's accuracy, and said the estimated time left for vitamin D and for sunburn can change a lot within a few minutes, so the exact times are hard to trust.
Writing language: Korean
Found on
The Verge ↗ / Published by source
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