Order Now

Tells You What Your Baby Can't

The Smart Sock 2 uses proven technology (pulse oximetry) to track your infant's heart rate and oxygen levels from the comfort of your home. The Smart Sock 2 has a range up to 100 ft and uses an innovative fabric sock to ensure a comfortable fit and accurate readings.

Order Smart Sock 2

Designed By Us. Improved By You.

Designed By Us.
Improved By You.

Smart Sock 2 is the result feedback from 1000’s of parents and our continued investment in product design. It is guaranteed to be the most sophisticated, accurate and reliable version of the Smart Sock.

Shop Owlet Products

Smart Sock 2 Features

Smart, Reliable Sensor

Reliable Sensor

Smart Sensor

Pulse Oximetry

Pulse oximetry algorithms increase the precision and accuracy of your baby’s readings.


Sock sensor is flexible and designed to adapt to your baby’s foot as he or she grows.

Innovative Sock Design — Soft, Simple & Secure

Innovative Sock Design:
Soft, Simple & Secure

Fabric Sock

Sure Fit Technology

Innovative new sock design offers a more secure fit and intuitive placement, meaning more accurate readings.


Hypoallergenic cotton gently yet securely wraps around your baby’s foot and designed to grow with your infant.

Universal Fit

Updated fabric sock can be worn on either foot, allowing parents to alternate as needed.

Better Bluetooth. Better Base Station.

Better Bluetooth.
Better Base Station.

Base Station Base Station

Increased Range

Improved Bluetooth range, up to a 10x increase (100 feet), between the Smart Sock 2 and Base Station.


Improvements in hardware resulted in 4x fewer red and yellow notifications.

More Data. Less Worry.

The App The App

Mobile App

Improved interface with sock sizing guide, push notifications and real time access to your baby’s heart rate and oxygen levels.

Connected Care

Smart Sock 2 is compatible with Connected Care, an app that allows you to track historical data, red notification information and sleep trends.

Get the peace of mind the Owlet Smart Sock system provides. Buy Now

83% of parents report
improved sleep while using
the Owlet Smart Sock.

Read Reviews
Base, Sock, Sensor

Technical Specifications


Smart Sock - 5.25 x 2.1 inches
Base Station - 3.5 x 3.5 x .7 inches


Smart Sock - 0.1 oz
Base Station - 0.8oz


Sock: bluetooth 4.0 up to 100ft
Base Station: wifi 802.11b/g/n


Rechargeable sock lasts up to 18 hours

Age Range

0 - 18 months

App Compatability

iPhone 5 or later (iOS 9 or later)

Available in the iOS App Store

Base, Sock, Sensor