Comparison of SpO2 and heart rate values on Apple Watch and conventional commercial oximeters devices in patients with lung disease - Scientific Reports (nature.com)

The impact of the Apple Watch and other wearables on health and health care is only beginning to be understood. "We observed strong positive correlations between the Apple Watch device and commercial oximeters when evaluating heart rate measurements...and oximetry measurements...."

iPhone 13 Cinematic Mode video shot on the street with no extra equipment (9to5mac.com)

Cinematic Mode on the iPhone 13, in the hands of a professional videographer but without any other equipment, is impressive. Not perfect, but impressive for sure. And this is the first go...it will certainly get even better over time.