WITHINGS HWA09-2 ScanWatch smartwatch, 38 mm, black

Featuring carefully selected, state-of-the-art medical technology, ScanWatch is a combined heart rate and SpO2 sensor that boasts three electrodes, an altimeter and a rechargeable battery with a battery life of up to 30 days.

A medically accurate ECG anytime, anywhere.
The three electrodes allow ScanWatch to record a medically accurate electrocardiogram (ECG). This enables early detection of atrial fibrillation and the heart rhythm to be classified as normal or out of normal in just 30 seconds to provide valuable data for your doctor.