- App Experience
The core app looks much nicer after overhaul.
The CORE 2 is a wearable sensor that clips to a heart rate monitor strap to track your core body temperature in real time. It's built for endurance athletes doing heat training and syncs to bike computers and watches.
From current evidence, the CORE 2 is a narrow-fit tool for serious heat-training athletes who already use a heart rate monitor. Its app overhaul makes tracking core temperature cleaner, but the sensor is expensive for a single-purpose wearable. Consider whether the targeted performance data justifies the cost.
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