Finally, a wearable UV sensor that is clinical-grade

Other sensors fail to mimick the skin sensitivity to sun exposure, giving erroneous measurements. Shade solves this by weighting correctly UVB and UVA, just like the skin does.

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wearable uv

Finally, a wearable UV sensor that is clinical-grade

Too much UV exposure leads to serious consequences, such as skin cancer or immune reactions. Measuring accurately your sun exposure may help you stay ahead.

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Comparison wearable UV sensors

Our technology is proven

To be useful, wearable UV sensors must mimick the skin's sensitivity to sunlight.

Developed by PhDs and funded by the National Cancer Institute, the Shade UV sensor is proven to be 10x more accurate than other sensors at mimicking the skin sensitivity to UV. We published our research in a scientific peer-reviewed journal.

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Daily limits of UV exposure are personalized

UV sensitivity is unique to everyone. Our app starts by introducing you to known limits of UV exposure. As you use the sensor, you can fine-tune a daily limit of UV exposure that works just for you.

The app sends pushes notifications every 20% of this limit so that you are always one step ahead.

wearable uv sensor
"Love my Shade sensor!"
Morgan H. (with a 1st-gen. sensor)

Our customers are delighted.

Using a Shade UV sensor provides an unprecedented peace of mind.

Hundreds of people are using Shade to better manage their sun exposure, and love how accurate and useful the sensor is.

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Top universities use our sensors

Our sensors have been used at Northwestern Medical School, Weill-Cornell Medicine, Hopital Europeen, among others. Using Shade UV sensors, Dr. Stump et al. validated a new metric to measure "unprotected" time in sunlight.

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Are you planning a clinical study?

Please reach out to us at We offer an app on both iOS and Android where the UV data is not shown to patients, enabling you to measure their UV behavior without biasing them.

There is a study fee ($1,000 per study) and a monthly fee ($500 per month) to access every sensor's data in real-time. We offer a 20% discount to academic researchers.