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Kardi AI, a Czech medtech company based in Olomouc, has raised €5.3 million in a Series A led by Callisto Health. Česká spořitelna and Slovenská sporiteľňa, through their Seed Starter programs, joined, along with earlier backers BrightCap Ventures, Purple Ventures, DEPO Ventures and Garage Angels. Reports put the company’s valuation at €23 million, and the company calls it the largest round a Czech medtech startup has raised.
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The funding will support launches in Germany, India and the UAE and the development of models that estimate the risk of arrhythmias. Kardi AI’s product is a fitness chest strap with a built-in ECG sensor, paired with an app that analyzes the recordings with AI. People wear it through their normal day, which allows longer monitoring that can catch intermittent arrhythmias a short clinic check-up might miss. The system does not make a diagnosis, and the company positions it as a source of data to help physicians decide on further care.
In the Czech Republic, Kardi AI works with more than 70 hospitals, and more than 6,000 people use it. It is also active in Slovakia, Poland, Romania and Bulgaria, and holds an import license in India and device registration in the UAE.
CEO Vlastimil Hrabal said the company is “moving beyond detecting heart rhythm disorders” toward identifying increased risk before an arrhythmia occurs.



