Release your untapped power with

CORE Body Temperature Monitoring

Used by athletes, coaches and sports scientists


A vital metric for health and performance

When exercising your core body temperature rises and as this rises, your performance (power) goes down.

Monitoring your core temperature will give you the knowledge and insights to improve your performance

Find out how you can use CORE

Used by Top Athletes and Teams

Fernando Alarza

Kristian Blummenfelt

Alistair Brownlee

Performance Sports


Learn about how athletes use Heat Training, Heat Acclimation and the Heat Ramp Test

Heat Training for Performance

Up to now, the core body temperature could only be measured continuously using invasive methods like thermometers, probes and electronic pills or in a controlled environment.

CORE is the first wearable device that continuously and accurately measures core body temperature on the go.

CORE seamlessly integrates and lets you see your live data on the Smart Phone App and record directly to Garmin and Wahoo. Learn More


I have been implementing indoor training with professional cyclists for many years now. Now, to be able to monitor and assess this metric with CORE, our training will go to another level.

Kevin Poulton - World Tour coach, product manager for

The riders are extremely interested in the measurement and we see really a big GAMECHANGE here if we are able to have the body temperature available all the time during trainings and races. 

Dan Lorang - Head of Performance and Head Coach @Borahansgrohe

 It is clear though from my testing that my body temperature goes up and down at the exact moments I expect it to. (...) if you’re training in hot environments for hours on end – then it makes more sense.

DC Rainmaker

For high-level sports we are able to collect a lot of data but measuring core body temperature has always been difficult. The CORE device is an important piece of the puzzle that will ultimately help improve performance.

Ronnie Schildknecht, 11x Swiss Ironman Champion

CORE uses innovative sensor technology that was created in Switzerland and is utlised by experts worldwide.

Learn More

Internal and external studies and scientific research projects using CORE are documented here.