A good baby monitor helps to reassure parents that their baby is OK when asleep and not held in their arms. The first six months can be an anxious time and in 2013 a group of friends, all new dads, in the US got the idea for a new type of monitor, a monitor that uses pulse oximetry to track the baby’s heart rate and oxygen levels to more accurately determine the baby’s well being.

This technology is commonly used in hospitals by placing a clip with a reader on the patient’s finger and the challenge of developing a reader small enough for a newborn began. 2 years later the Owlet Smart Sock was born.