Withings

ScanWatch 2’s medical-grade ECG captures a 30-second single-lead cardiogram on demand with 97.5% sensitivity for AFib detection, cleared by the FDA and CE marked as a Class IIa medical device in Europe. Temperature sensor tracks 24/7 wrist skin temperature and detects cycle deviations for women’s health tracking. Respiratory scan during sleep estimates sleep apnea risk using SpO2 and snoring data, prompting users to seek formal diagnosis. Withings Health Mate app generates a 365-day Health Score trend with coaching nudges. Analog display and 30-day battery life mean it passes for a traditional luxury watch, encouraging wearing compliance that fitness-band style devices often do not achieve.