The smart piece of jewelry that takes care of you

Twin.C, a technologic piece of jewerly

IEVA takes up the challenge of embedding 5 environmental sensors and an activity sensor inside the Twin.C jewel.

Twin.C is connected to your environment

Check in real time your exposure to environmental stress. Open the IEVA app to get a detailed view, pollutant by pollutant, factor by factor (noise, UV, luminosity, temperature and humidity) as a weather forecast.

Twin.C, a smart piece of jewerly for everyone

All colors.... All materials, silk, leather, pearls... Bracelets, bag gems or necklaces, Twin.C adapts to all styles. Make your smart jewelry a part of your life.

A piece of jewerly that takes care of the Planet

By wearing Twin.C every day, you take care of yourself and contribute to the future of the Planet. All environmental data collected worldwide are used by several international research teams to optimize climate change prediction models.

Measures to know and personalized recommendations to act.

A click on environmental measures across the world ...


Know each measure of your environment and act for a better life

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A discreet and elegant design that adapts to every styles.

Twin.C to Go by Ieva

Twin.C to Go, our smart piece of jewerly for your well-being.

IEVA has selected the skills and expertise of the most recognized craftsmen by the prestigious French fashion houses to create a 100% French piece of jewelry.


Dimensions & Weight

42x42x10 mm


Interchangeable accessories dimensions

10 mm

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