Apple Watch's heart rate sensor can detect diabetes, Cardiogram study finds

The tiny Apple Watches on our wrists have already saved lives. Not only do they keep us more active, they can also detect a variety of heart diseases without needing any additional bands or accessories. But a new study by Cardiogram is taking it one step further.The mobile health data company’s deep learning network, DeepHeart, already uses data from the Apple Watch ($429 on Apple.com) heart rate sensor to detect atrial fibrillation, hypertension, and sleep apnea. Now it’s adding a