Threshold training made easy

No interruption. No needles. Just facts.

Our cutting-edge wearable sensor leverages safe, proven ultrasound technology combined with advanced AI to provide real-time guidance on optimal training intensity, eliminating the need for blood sampling.

The future of threshold training is wearable

About SonoFit

Training optimization with wearable sports technology

Based in Trondheim, Norway, we're building a training experience that fits directly into the athlete's rhythm→continuous measurement, clear interpretation, and guidance that supports better decisions in real-time.

Real-time guidance— Immediate feedback during training sessions

Wearable precision— Lab-quality insights in a compact form

Non-invasive— No needles, no interruptions

Revolutionary technology

SonoFit combines cutting-edge ultrasound technology with advanced AI algorithms to deliver precise, non-invasive anaerobic threshold monitoring for optimal training. Professional-grade physiology. Made wearable.

The SonoFit Sensor

Our proprietary ultrasound sensors provide unprecedented accuracy in anaerobic threshold detection without invasive testing. The compact design fits comfortably during any workout while delivering measurements in real-time.

Artificial Intelligence

Transform workout data into actionable insights with our AI-powered analytics platform. Track performance trends over time, identify optimal training zones, and receive personalized recommendations to maximize every training session.

Seamless Connectivity

Instantly sync your performance data across all your devices with reliable Bluetooth connectivity. Our app provides real-time feedback during workouts and comprehensive analysis afterward to keep you training at your optimal level.

Recent News

Stay updated with the latest developments, milestones, and announcements from SonoFit.

Apr 15, 2026

New Prototypes Ready for Upcoming Testing

We have received new prototypes developed in close collaboration with Tangen Engineering. From the moment we powered them up, the results were excellent. The sensors performed better than previous versions—noise sources have been eliminated, integrated batteries are now in place, and we’ve taken important first steps towards improved usability. This milestone is a strong testament to the expertise of the Tangen Engineering team.

TechnologyProduct Development

Apr 08, 2026

Sonofit in the news

It was a pleasure to have Adresseavisen visit us at our office in Trondheim! It resulted in a thorough and engaging article that tells the story behind Sonofit, and not least the potential in what we are now developing. Several other papers like Aftenposten and Fedrelandsvennen has also posted the Adressa-article online.

NewsGrowth

Mar 13, 2026

New visual profile

This week we have rolled out a fresh update to our brand, with updated colors, fonts and graphics, a completely refreshed visual profile. You'll see these changes both here on our website and on our LinkedIn page. Remember to follow us on LinkedIn to receive all news going forward.

BrandDesign

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