Last week’s INSIDER showcased a new UV wearable sensor from L'Oréal and Northwestern University engineers.
How the device works: Just before you hit the beach, you mount the M&M-sized sensor on your fingernail. Then, at any point during the day, you swipe the wearable with your phone. The contact activates near-field communications and sends data about your sun exposure to your mobile device.
What do you think? Would you wear a fingernail UV sensor?
- YES
- 57.14%
- NO
- 28.57%
- 14.29%

