Is It Safe to Listen to a Baby’s Heartbeat With a Phone?
Bubbi uses a smartphone’s built-in microphone to listen to surrounding and body sounds; it does not emit ultrasound waves into the body. However, “non-invasive” does not mean “medically accurate.” The main risk of listening at home is treating an ambiguous recording as proof that everything is fine—or becoming frightened when no sound is captured.
Written by HelloMommyHelloMommy editorial teamUpdated Published 2 min readWhat the phone microphone does
A microphone turns sound vibrations into a digital recording. According to Bubbi, the app sends no signals into the body and requires no external sensor, gel or Doppler.
How this differs from a Doppler
A handheld fetal Doppler uses ultrasound energy. The FDA recommends that these systems be used by trained professionals when medically necessary because untrained use can lead to prolonged exposure or misinterpretation.
The main risk is a false conclusion
A phone may record the mother’s pulse or blood flow, while a missing clear rhythm may be due to noise or the baby’s position. Neither result assesses health. Do not change your medical care plan because of a home recording.
How to use it responsibly
Keep sessions short and calm, do not press the phone into your abdomen and stop if the experience causes anxiety. Treat the recording as a family keepsake. Follow your phone manufacturer’s guidance on device care and temperature.
Symptoms always matter more than an app
Contact a healthcare professional if you notice changed movements, bleeding, pain, leaking fluid or anything else that concerns you. Do not first try to find a sound: even hearing a rhythm cannot rule out a problem.
Frequently asked questions
Does Bubbi emit ultrasound?
No. According to the product description, Bubbi uses the phone’s built-in microphone.
Can I use Bubbi instead of my clinician’s Doppler?
No. They use different technologies for different purposes; Bubbi is not a medical device.
What if a recording makes me anxious?
Stop the session and contact your doctor or midwife if you have a medical concern.
Sources
This article is for general information only and is not medical advice. Always talk to your doctor or midwife about your own pregnancy.
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