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Now More Comfortable With Greater Range

The Smart Sock 2 enhances everything that our 100,000+ parents loved about our original Smart Sock. It 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 a new fabric sock design to ensure a comfortable fit and accurate readings. Our updated smart phone app makes it easy to view your baby's heart rate and oxygen levels in real-time.

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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.

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Features & Enhancements:

Smarter, More Reliable Sensor

More Reliable Sensor

Smart Sensor

Pulse Oximetry

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


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

Redesigned Sock — Soft, Simple & Secure

Redesigned Sock:
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.

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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