Apple's banned SpO2 data isn't especially accurate, and most rival watches aren't any better. Masimo could change the status quo. When you purchase through links on our site, we may earn an affiliate ...

Google's smartwatch has caught up to its competitors by activating its SpO2 sensor. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Google ...

Polar has introduced the Grit X2, its latest outdoor-focused smartwatch aimed at athletes, hikers, and endurance enthusiasts. The launch comes a year after the company released the Grit X Pro in March ...

ECG-enabled smartwatches can help monitor heart rhythm patterns, flag irregularities and add useful context to everyday ...