All models of the Owlet Smart Sock measure your baby’s heart rate and oxygen levels.
The Smart Sock 3 features entirely new hardware and design, based on feedback we heard from parents all over the world. With these changes, the Smart Sock 3 now fits babies both bigger and smaller—from 2.2 kg to 13.5 kg It also monitors babies through gentle motion, so you get live readings more often. The redesigned Base Station offers wireless, drop-and-go charging—a huge time saver! Get an 8 hour charge in under 20 minutes, and a full 16 hours in 90 minutes.
The Smart Sock Plus includes a third, larger size sock that can fit children up to 25 kg.