OwletSmart Sock 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.


  • 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 (10)

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April 15, 2018

It detected my Baby’s case of pulmonary hypertension that went undiagnosed in the hospital. It gives me peace of mind while my baby and I both sleep. This is a must buy!

March 18, 2018

Our little one arrived 6 weeks early and spent three weeks in the hospital before we could bring her home. This gave us such peace of mind! I found it easy to set up, and originally we did have a few false alarms but the I ended up turning off some of the notifications. I always put a thin sock over the owlet to help it stay in place. Our baby is 8 months old and I still use it every night.

February 16, 2018

I registered for it and got it, but never used it. I didn't know when I registered but there are so many requirements to using this (e.g., only works in the dark (so can't use it for naps), the sock can't be covered (so baby can't wear footie pajamas) that I never got the opportunity. It's a bummer because it is a great idea but not practical.

February 12, 2018

It gives me peace of mind every night. We have had a false alarm, which was terrifying and is the main drawback to monitors like this, but it's made me much calmer every other night to know baby is being monitored.

February 7, 2018

This product has been an enormous anxiety reducer. I can sleep easy knowing that my baby is safe.

Lisa & Magnus
January 5, 2018

Gives me piece of mind and is HSA approved.

January 4, 2018

I love feeling secure that my daughter is still breathing during the night and naps. I love how easy it is to use and impressed that it has never fallen off during her sleep. I love that I can check her heart rate and know if she is still asleep based on that.

January 4, 2018

I wanted to love the owlet. I really did. I love the idea, but for us it has not worked as we had hoped. I want to share our experiences so that others have a good understanding of what issues you could potentially run into before spending $300. The first issue we ran into was internet connection. We have a 5 GHz frequency router. I called owlet for help due to the owlet frequently ‘disconnecting’ from the internet (note: it plays music - NOT QUIETLY- when this happens; a feature that I later found I could turn off) and they informed me that the owlet is NOT compatible with 5 GHz freq. The second gripe I have is that there are still random times when for whatever reason the sock still ‘disconnects’ from the base station. Even after it has just completed charging and not moved more than ten feet from the base station. So we just turn it off. Therefore making it useless. The third, and most minor complaint I have is that the socks themselves are poorly constructed. Before our little guy had even arrived when I was setting up the owlet in preparation I noticed that the sock was coming apart. I might have been able to call and get a replacement, but I had my sewing machine handy so fixed it myself. If I hadn’t it certainly would not have survived the washing. Hope this helps anyone who might be on the fence. When it does work it’s great. I did find it particularly reassuring when our little guy had a cold. I could see that his O2sat was high even though he sounded super stopped up. (After getting checked by pediatrician who indicated that that was one of the ways they assess if baby needs treatment or has something worse than just a little congestion).

December 29, 2017

It’s not that easy to set up and it can give a lot of false warnings if the sock slides off.