This Bracelet Can Prevent Sunburn

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This Bracelet Can Prevent Sunburn

This Bracelet Can Prevent Sunburn
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This Bracelet Can Prevent Sunburn

by WSJ Live 2:45 mins

This Bracelet Can Prevent Sunburn

by WSJ Live 2:45 mins

The $99 Netatmo June Bluetooth bracelet monitors UV rays and alerts you when you might be at risk of sunburn. Personal Technology Columnist Joanna Stern heads to the beach to see how much protection it really delivers. Photo/Video: Drew Evans for The Wall Street Journal.

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