CORE 2 is a compact, non-invasive sensor that accurately monitors an athlete's thermal load. Powered by greenteg’s Swiss-made thermal energy transfer technology, it delivers medical-grade accuracy, enabling athletes to optimize performance by effectively managing thermal regulation in real-time.

CORE 2 combines sleek aesthetics with practical functionality, designed for both comfort and performance. Measuring 48% smaller and weighing 30% less than the previous generation device, its lightweight, compact form ensures it doesn’t interfere with peak athletic performance.

Key design enhancements include a new LED indicator for device status, charging, and battery life, and an overhauled attachment mechanism using a durable, flexible material. This ensures a secure fit whether attached to a heart rate monitor strap or an arm strap.

The sustainable packaging uses 100% recyclable materials and reflects a commitment to reducing ecological impact. 

Seamless integration with platforms like iOS, Android, Garmin, and Wahoo through BLE and ANT+ protocols ensures users can easily access and share their performance data.

CORE 2 will be available for sale globally by March '25.