Walnut Wearable Smart Thermometer Recall (2023) Due To Skin Burn Risks

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Why Are Walnut Wearable Smart Thermometers Being Recalled?

BearCare voluntarily recalled the Walnut smart baby thermometers on May 10, 2023, after receiving consumer complaints of skin burns and skin irritation (ranging from minor to severe) in children who used them. (1)(2)

Some of the possible signs of a failing device include: (2)

  • Diminished battery life
  • Heat or a sensation of warming at or near the site 
  • Skin irritation or redness on the spot that touches the device
  • Connectivity issues with the Walnut App
  • Leaking of any substance from the device’s exterior
  • Any signs of corrosion on the back of the device (near or around the smart sensor)


What Walnut Wearable Smart Thermometers Are Recalled?



The Walnut wearable baby thermometer is an over-the-counter rechargeable device designed for continuous chest temperature monitoring. It’s intended for children ages 0-6 years. (1)(2)

The Walnut Care device resembles a cartoon penguin made of silicone. (1)(2)


How Do I Check If My Walnut Wearable Smart Thermometer Is Included In The Recall?

Check for the model number “WT20” and lot number “20221115W002” on your device.

The recalled products were distributed from December 2022 through April 2023 via: (1)(2)

  • Walnut Cares (


What To Do With My Recalled Walnut Wearable Smart Thermometer?

Immediately stop using the recalled smart thermometers. (1)(2)

Contact BearCare to get a full refund through these channels:

  • Email: [email protected]
  • Recall site (link for the form to get prepaid shipping label): 


Do I Need A Receipt For The Walnut Wearable Smart Thermometer Recall?

You might need to provide a receipt, an email confirmation of your purchase, or other information relating to your product.


Are These Walnut Wearable Smart Thermometers Still Safe To Use?

No. The corrosive fluids that might leak from the thermometer can cause chemical burns on the skin or toxicity if swallowed. (1)(2)

Be sure to also check your child for signs of chemical burns on parts in contact with the Walnut thermometers. Also include the mouth, eyes, and other vulnerable areas. (1)(2)


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