CORE 2 Unveiled: Smaller, Smarter, and Built to Transform Performance Monitoring

EMBARGO in effect until: January 3rd 2025 0800 CET

The go-to body temperature sensor trusted by the world’s top cyclists, triathletes, and endurance athletes, is redefined with the introduction of CORE 2. Smaller, lighter, smarter, and packed with cutting-edge features designed to revolutionize how athletes manage thermal load during training and competition. Available globally starting late March 2025, CORE 2 is set to transform performance monitoring for athletes everywhere.

The next-gen CORE 2 sensor is 48% smaller and 30% lighter than its predecessor, delivering unmatched comfort and performance. Engineered in Switzerland, CORE 2 reflects the company’s ongoing mission to empower athletes—whether pros chasing podiums or weekend warriors looking to optimize performance.

CORE is bringing the innovative CORE 2 to users while keeping the price the same as the current CORE 1 sensor. The new sensor will retail at 269.95 CHF (Swiss Francs), with local pricing adjusted closer to launch to reflect exchange rates and applicable VAT.

Expanding on the success of the original CORE sensor and its highly adopted Heat Adaptation Score, CORE 2 offers a hardware platform for continued innovation informed by athlete feedback. The result? A next-gen sensor that’s sleeker, more intuitive, and ready to tackle the toughest training sessions and races.

CORE 2 isn't just a smaller sensor—it's a smarter tool for real-time thermal monitoring:

According to Ross McGraw, VP & Global Head of CORE "CORE 2 is a direct response to the needs of the athletes who inspire us every day. From the pro peloton to weekend warriors, athlete feedback helped us refine a product that raises the bar for thermal load monitoring. We're thrilled to launch a tool that balances precision, comfort, and sustainability,” 

Athletes who are eager to get started with heat adaptation training and monitoring now can shop 20% off CORE 1 while supplies last.

To support its dedicated community, CORE will be launching a Trade-Up Program to make the transition to CORE 2 even easier. Existing CORE 1 users who send in their device will receive a credit toward their upgrade to CORE 2, ensuring no athlete gets left behind.

Stay tuned for more details on CORE 2 and the CORE Trade-Up Program as the global launch approaches.

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CORE is a division of greenteg AG and provides expertise and technology for thermal management in sports. The CORE sensor is a real-time core body temperature monitor built with the advanced, Swiss-made Calera thermal energy transfer sensor, which provides medical-grade accuracy. It is the only wearable solution that allows athletes to continually monitor accurate core body temperature data without the need for an ingested or inserted thermometer.
Zürich-headquartered greenteg AG manufactures and supplies thermal energy transfer sensors, which are also used across a host of applications beyond sports, including medical use, photonics, thermal efficiency measurements in construction, and workplace health and safety.

CORE will have a booth at the Venetian Expo, Halls A-D, 45508. Please reach out to schedule time if you would like to see the NEW CORE 2 sensor.