VentriJect develops a wearable system that estimates VO2-max from heart vibrations and reports results through an app.
VentriJect develops the Seismofit® System, a wearable device that estimates VO2-max by recording vibrations from the heart and analyzing them with a cloud-based algorithm. Its products serve fitness, sports and medical examination markets. Founded in 2018 as a spin-out of a cardiology research center at Aalborg University, the company is based in Copenhagen, Denmark. In August 2025, it raised EUR 1.7 million from unspecified investors, including Export and Investment Fund of Denmark and TechStation Invest.
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