Wearables Move Beyond Fitness With Nuna Pendant, a $299 AI Necklace That Tracks Emotional Health

August 25, 2025

Wearables have spent the last decade tracking steps, sleep and stress. But one startup wants to measure something more elusive: emotions.

ThingX, a digital health-tech venture spun out of the Chinese University of Hong Kong’s AIoT Lab and supported by a team of global researchers, has unveiled the Nuna Smart Pendant, a $299 necklace that uses sensors and AI to translate biometric, environmental and voice signals into emotional insights. Originally codenamed PieX (Personal Index), the device started as an academic prototype. Athletech News