OwletSmart Sock 2 Baby Monitor



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What weabout it
High-tech, wearable baby monitor lets you track your little one’s heart rate and oxygen levels in real time—and alerts you if there’s a problem.

About this Product
  • Tracks heart rate and oxygen saturation levels
  • Includes three different sized cotton socks to grow with your baby
  • Bluetooth connection from Smart Sock to base with 100 foot range
  • Connects to the Owlet smartphone app to give you real-time data


Owlet’s Smart Sock 2 takes the baby monitor concept up a few notches by tracking your baby’s heart rate and oxygen levels while they sleep—and notifying you if something is wrong. The smart sensor—which measures oxygen with clinically proven pulse oximetry—fits in a cotton “sock” that wraps comfortably around your baby’s foot. Each Smart Sock comes with three sock sizes, so it can grow with your baby.

The Smart Sock communicates with a base station via Bluetooth with a 100-foot range. The base station is illuminated in green when all is well, but notifies you with lights and sounds if there’s a problem. You can also connect to the Owlet app to get notifications and stream real-time data on your phone. You can view heart rate and get notifications if BPM is higher or lower than specified zones, or see oxygen saturation levels and be notified if they drop below a preset threshold.

Drawbacks of this system: the app connection is Wifi dependent, and the sock needs to be plugged in to charge when your baby’s not sleeping. It takes about three hours to fully change, and the charge lasts for about 18 hours. Some parents will love this little machine for the peace of mind it provides, and it can be super helpful if your baby has a medical condition.

Do be aware that, though it can alert you to potential problems, it has not been tested to prevent SIDS.

For a complete baby monitoring system—vitals, video and audio—you can purchase the Owlet Cam separately or as a set.


  • Ages 0–18 mos.
  • 3.5” x 3.5” x 0.7”
  • 1.3 lbs.
  • Includes 3 fabric socks (sizes 0–18 mos.), sensor, base station, charging cords, and Owlet app
  • Does not include smartphone
  • Requires iOS 8 or higher and Android 4.4 or higher
  • Version 2
  • Wifi required for Owlet App
  • Owlet is not an FDA approved medical device and is not intended to diagnose, treat, mitigate, cure, or prevent any disease or condition
  • BPA, latex and lead free
  • ETL listed

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User Reviews (19)

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February 5, 2019

Moving our daughter from our room to her crib wasn’t scary at all. This sock allows us to rest assured knowing that of something is wrong we will be notified. The alarm is LOUD and will wake any adult from a deep sleep.

February 2, 2019

We had an advice nurse at Kaiser tell us that our baby was having trouble breathing the night we brought him home from the hospital (he was not), but after that scare, the Owlet gave us great peace of mind!

October 11, 2018

The sock didn’t fit my daughter as a newborn (too big). We primarily used this when she had a cold, but have been using it more now since the sock fits her nicely.

October 10, 2018

This takes all your worries away as far as SIDS goes! It monitors their heart rate & oxygen levels and it gives peace of mind. It's definitely worth the purchase! It's expensive but I'd buy it again in a heartbeat.

September 29, 2018

Peace of mind while baby sleeps.

August 27, 2018

August 21, 2018

It's hard to apply to baby and it's really only needed for the first 6 months and our baby slept in the bassinet beside us during that time so very expensive for what it is. A real video monitor is better for the money.

July 20, 2018

I nanny for a child who was born at 23 weeks and is still on oxygen (now 17 months). We use his owlet for every nap and at night and it is such a lifesaver, literally. We’re able to check the app at any time to monitor his oxygen levels and know that if they’re low, he probably pulled the cannula out of his nose. At night when we’re sleeping and not checking the app, it will alarm if his oxygen level is 80% or below. Of course this is an extreme situation, but I would recommend to any parent for the peace of mind while baby is sleeping.

July 11, 2018

I would love it if I could set the presets for the lows & highs.