is a senior reporter and author of the Optimizer newsletter. She has more than 13 years of experience reporting on wearables, health tech, and more. Before coming to The Verge, she worked for Gizmodo ...

Pulse oximetry is a ubiquitous non-invasive medical sensing method for measuring pulse rate and arterial blood oxygenation. Conventional pulse oximeters use expensive optoelectronic components that ...

The ECG sensor on the Apple Watch Series 7 (Rs 41,900 onwards) is the most seasoned on any wearable available currently. Remember this line from the launch of the first Apple Watch in 2014: “Apple ...