Key points from article :
Finnish health tech company CardioSignal got $10 million to improve their smartphone heart disease detection technology.
They use phone sensors to measure heart movements and identify problems early.
This could help doctors diagnose heart issues sooner and prevent complications.
The tech is already used in 15 countries and focuses on atrial fibrillation and heart failure.
They plan to expand to detect other heart diseases and make the tech more widely available.
Investors believe this could significantly impact heart disease prevention globally.
