LOS ANGELES - Owlet has stopped selling its Smart Sock, the company’s flagship product that wraps around a baby’s foot to monitor their heart rate and oxygen levels, after it received a warning letter ...

Hypoallergenic design. Comes with multiple size socks. Intuitive app. Loud base station alerts. Expensive. Sock must be within Bluetooth range of base station. iOS-only app. Having a new baby is often ...

The socks are intended to measure a baby's vital signs while they sleep. An Owlet Smart Sock which checks blood pressure, heart rhythm, and blood oxygen levels is attached to the foot of a doll.