Wellue Baby O2 Monitor Review

In this post, I review another oxygen monitor, Wellue baby oxygen monitor. It is similar to Owlet, another breathing baby monitor we have reviewed here at Motherhood HQ.

Wellue Baby O2 Monitor Review

How Wellue Baby Oxygen Foot monitor works

Wellue Baby Oxygen Foot monitor is a wearable device used to track a baby’s blood oxygen levels, heart rate, and movement.

The monitor comes in two parts: the sensor that wraps around the baby’s foot and the device itself that wraps around the thigh or calf. These wraps are made of soft fabric and secure using Velcro for a snug fit. They come in two sizes fitting babies from 0 to 3 years. The entire device weighs just 241 grams.

The oxygen and heart rate levels are monitored continuously and streamed in real-time via Bluetooth for up to 50 meters on the Wellues app, Vihealth, which you can install on your smartphone or iOS for free.

During set up, parents set the acceptable Oxygen range and get an audio alarm notification on the device and app if oxygen levels drop below the set range or the device has fallen off. This way, parents get peace of mind that the baby is breathing fine at all times, even at night, without waking every time to check on the baby.

The device also has a built-in memory, so it continues recording your baby’s stats even when not connected to your smartphone for up to 10 hours. Immediately you connect the smartphone, it syncs and sends the recorded stats to your phone.

That means even if your phone dies on you, you will be able to see how your baby was faring. Additionally, it has computer software if you need to print your baby’s historical data to share with your doctors or family for any reason.

$149.99  in stock
1 used from $117.31
Free shipping
as of September 11, 2023 7:58 am

Wellue Baby Oxygen Foot monitor comes with a charging USB and takes about 3 hours to fully charge, lasting for up to 16 hours. It also allows you to adjust alarm volume to your liking.


  • Wearable device that wraps around the foot and leg
  • Includes replaceable band and two sizes of soft wrap
  • Monitors oxygen levels, heart rate, and sleep movements
  • Suitable for babies ages 0 to 3 years old
  • Free app to install on Android and iOS devices
  • Built-in memory for storage up to 10 hours
  • Audio alarm with adjustable volume
  • Computer software to save, print, or share data with others
  • Uses Bluetooth technology for transmission with a range of up to 50 meters
  • Rechargeable battery lasting 16 hours


  • Comes at a fraction price of other similar monitors
  • Not medical grade, yet very accurate and reliable
  • Easy to set up and use
  • Access real-time stats from your smartphone
  • You can record, save, print, and share your baby’s stats.
  • Long lasting battery
  • Can be used by kids of a wide age range


  • You might get false alarm sometimes from the baby moving their legs 

Baby O2 levels/baby O2 saturation

Oxygen saturation is the percentage of hemoglobin carrying oxygen. Healthy babies and infants should have oxygen saturation levels of between 90% and 99%.

Baby O2 level while sleeping

Oxygen saturation levels normally vary with a baby’s activity. They tend to increase if the baby is awake to 93% and 94% and remain the same or decrease to even as low as 86% during sleep for babies below 3 months.

Wellue BabyO2 Foot Monitor Vs Owlet Smart Sock

Wellue Baby 02 oxygen monitor and Owlet Smart Sock are the two most popular breathing monitors. Both use a similar concept and will tell you your baby’s oxygen, heart rate, and sleep patterns and raise the alarm if the baby is not breathing or oxygen levels are getting low.

There are a few differences, like the Wellue monitor can be used longer, up to 3 years, while Owlet only fits up to 18 months. The second difference is that Wellue uses Bluetooth and has a longer transmission range of up to 50 meters, while Owlet uses Wifi with 100 feet range and allows multiple phones to stream. Wellue also has computer software that allows you to print and share the baby’s stats with doctors. Third, Wellue retails at $149.99 compared to Owlet at $249.

Why Wellue is the Best Oxygen Monitor?

Compared to all other breathing monitors, Wellue Baby 02 oxygen monitor is an unbeatable winner. It is accurate, reliable, and convenient, serves for years, and has the best pricing. 

$149.99  in stock
1 used from $117.31
Free shipping
as of September 11, 2023 7:58 am