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Owlet Smart Sock V3 - Mint Green

The award-winning Smart Sock slips onto baby's foot to track your baby's oxygen level and heart rate, while they're sleeping.

This is well beyond the capabilities of any other baby monitor. Parents around the world trust Owlet every night to help them keep their babies safe while they sleep. 

The Smart Sock is the first baby monitor to track your baby’s oxygen level and heart rate—the best indication of baby’s health—while they sleep. If your baby’s readings leave preset “safe” zones, you'll receive a notification that lets you know your baby really needs you. Now you can feel more confidence, more freedom, and more peace of mind knowing that Owlet is here to help you keep your baby safe.

The all-new Smart Sock is the third of its kind and it's smarter than ever.

  • If baby's readings leave pre-set "safe" zones you'll receive a notification to your mobile phone
  • The base station glows green to let you know everything is okay but will notify with lights and sounds if something appears to be wrong
  • Using Owlet's app, you can receive notifications and stream real-time heart rate and oxygen levels on your phone

What's in the Box

  • 4 Socks in total (2 sizes)
  • Smart Sock sensor
  • Wireless Base station
  • Charging cords
  • Power Plug Converter
  • Owlet App
  • Power Adapter

*Smart Phone not included


Smart Sock - Two sock sizes with left and right fitting socks in each size (four in total)
Suitable for a broader size and weight range of babies: from 2.3 kg up to 13.6 kg (approx. 90% of babies up to 18 months)
Wireless charging - Convenient drop-and-go charging on the Base Station.
Base Station - with a longer range: now up to 30 m. Base station Glows green to let you know everything is okay but will notify with lights and sounds if something appears to be wrong.
Includes 3 notifications for parents.
Proven Technology - Uses proven pulse oximetry. Meets international pulse oximetry standards for accuracy.
Mobile App - Real-time heart rate and oxygen levels. Track sleep data and hours slept. Receive base station notifications. See historical analytics and trends
The Smart Sock comfortably wraps around your baby’s foot to track heart rate and oxygen levels using clinically-proven pulse oximetry.


The Owlet App requires iOS 12 or higher and Android 5.0 or higher
**Please note, that a WIFI connection is not required to use the Owlet Sock. The base station and sock communicate via Bluetooth.

Dimensions: 1.5 Inches (H) x 4 Inches (W) x 5 Inches (D)

Alert Type: Sound Warning, Smartphone App Notification, Light Warning

Alerts For: Blood Oxygen Level (SpO2), Heart Rate

Power Source: Electric, Battery-Powered

Battery: 1 Lithium Ion, Required, Included

Care & Cleaning: Hand Wash

Designed in USA