But just because something is small doesn’t mean it should be invisible. “There’s definitely a question of, when it gets that small, what do you do with it? Where do you put it? How do you not lose it. And how does it just become embedded in your activities,” says Béhar.
Fuseproject began by considering where on the body the UV Sense could live. On your face, it might be shaded by a ballcap. On your wrist, it might find itself covered in the shadow of a jacket. The hand–or more specifically, the nail–was the best, always-nude part of one’s body. An added bonus was that nails are hard and they don’t sweat, meaning the UV Sense’s adhesive bottom could stick on one’s person for weeks at a time.
“The nail is a really, really interesting area. Because for women, it’s cosmetic…[so we could] almost treat it like nail art,” says Béhar, who points out that the UV Sense will come in all sorts of differing designs. “We also thought, well, it may become an accessory, something you attached to a pair of sunglasses, or your watch, or you can add to a friendship bracelet. We made it versatile in a sense. Not everyone is going to put it on their nail, so you can put it on accessories when you’re out in the summer, and sun.”
Bigger picture, to Béhar: The UV Sense is a model for a type of wearable we really haven’t seen before. It’s a single-serve sensor that doesn’t need a battery. This minimal approach is the antithesis of an Apple Watch–which measures all sorts of biometrics and promises countless functions, in a way that Béhar likens it to a multitasking laptop computer.
“If you’re trying to do a lot more sensors, you will need more [size and] battery power,” says Béhar. “But I’m thinking about a place where the sensors are designed with a specialized purpose, and a combination of those are used throughout your day, body, and home, positioned and placed in the most optimal area, that speak to each other and give you, maybe even more precise data.”
It’s a feasible argument for the future of wearables–tiny, forgettable stickers we apply to wherever they’ll attach to our lives, to track only the bits of information crucial to our personal well-being. But does all of this effort really matter, considering that consumer data shows that many people tend to abandon their wearables within a few months of purchase? Maybe. In a trial run with its earlier UV patch. Namely, these UV sensors changed behaviors. 34% of users reported applying sunblock more often, and 37% reported that they stayed in the shade more. If such behaviors could stick over months or even years, it’s easy to imagine the compounded skin health benefit.
Source : https://www.fastcodesign.com/90156216/loreals-ingenious-nail-art-detects-harmful-uv-rays