There’s a line running through the baby monitor category that most buyers never see, and it isn’t drawn by price or brand. On one side sit products that help you watch a baby. On the other sit products that claim to measure one. Regulators treat those as fundamentally different things — and in 2025 the FDA made that distinction unusually visible.
The regulatory line falls between observation and measurement. A camera, a microphone, night vision and a temperature display help a caregiver observe — they present information a person then interprets. A device claiming to measure vital signs such as heart rate, oxygen saturation, or breathing rate is doing something different: producing clinical readings intended to prompt medical action, which is the definition of a medical purpose. On 16 September 2025 the FDA issued a safety communication warning against unauthorised infant monitors sold over the counter for vital-sign monitoring, stating that many lack FDA marketing authorisation and that the agency has therefore not evaluated their safety or effectiveness. The communication also made two points worth knowing regardless of what you buy: these devices have not been evaluated to support monitoring for apnea, SIDS or SUID, and the FDA says it is not aware of clinical or scientific evidence showing that any currently available baby product prevents or reduces the chance of SIDS. For a parent, the practical consequence is that “monitor” covers two categories with completely different evidentiary requirements — and knowing which one a product belongs to tells you what it had to prove before being sold.
§01Observation versus measurement
The distinction sounds semantic until you see what hangs on it. Both categories of product sit in a nursery and both are described as “monitors,” but they make different kinds of claim about what they deliver.
A video feed shows you your baby; you decide what it means. A microphone carries sound; you judge whether it’s a settling noise or a real cry. A room temperature reading gives you a number for general awareness. In each case the device presents information and a human does the interpreting — the product isn’t diagnosing, measuring a physiological state, or telling you a medical threshold has been crossed.
WHAT IT MUST PROVE: that it’s electrically safe, that its radio behaves within regulated limits, and that its materials meet applicable requirements — the standard product-compliance path covered in our certification comparison.A device claiming to measure heart rate, oxygen saturation, respiratory rate or similar is generating a physiological value, typically with thresholds that trigger an alert. That alert exists to prompt action — which is exactly why regulators treat it as a medical purpose rather than general wellness. The FDA has been explicit that such devices do not qualify as unregulated general wellness products, because they are intended for a medical use.
WHAT IT MUST PROVE: everything the first category proves, plus that the measurements are accurate and the device is safe and effective for its stated medical purpose — which in the US means marketing authorisation before it can be lawfully sold.§02What the FDA actually said
The communication warned consumers, caregivers and healthcare providers about unauthorised infant monitors used for measuring vital signs — heart or pulse rate, oxygen saturation, breathing or respiratory rate, and body temperature. Its central point was that many such devices sold over the counter lack FDA marketing authorisation, meaning the agency has not evaluated their safety and effectiveness.
Three statements in it are worth reading carefully, because they apply to the whole category rather than to any one product:
— These devices have not been evaluated to support monitoring for asthma, apnea, SIDS, SUID, or the overall health condition of infants.
— Infant monitors are not a replacement for adult supervision or safe sleep practices.
— The FDA states it is not aware of any clinical or scientific evidence that currently available baby products prevent or reduce the chance of SIDS, and that any product marketed with such claims has not been cleared or approved for that use.
The full communication is published on the FDA website, and is worth reading directly rather than through summaries.
Worth being precise about scope: this communication concerns devices claiming to measure vital signs. It is not a statement about video or audio baby monitors generally, which sit in the observation category and are regulated as consumer electronics rather than as medical devices.
§03Why the line exists
It’s tempting to read regulation as bureaucracy, but the reasoning here is straightforward once stated: a measurement that prompts action carries risk in both directions.
| Failure mode | What it produces |
|---|---|
| FALSE POSITIVE | An inaccurate reading suggests a problem that isn’t there — leading to unnecessary medical care, avoidable distress, and eroded trust in the alert the next time it fires. |
| FALSE NEGATIVE | The device fails to detect a genuine change in condition, which could delay treatment. The FDA specifically noted this risk in its communication. |
| MISPLACED RELIANCE | A caregiver treats the device as a safety net and adjusts their own behaviour accordingly — the subtlest failure mode, and the one no accuracy specification addresses. |
TABLE.01 — Why measurement is regulated differently from observation. A video feed that’s slightly blurry is a quality problem; a physiological reading that’s wrong is a clinical one. That asymmetry is the whole basis for the different evidentiary bar.
FIG.01 — The line, drawn where regulators draw it. Products on both sides are sold as baby monitors and often sit in the same product category online, which is precisely why a buyer benefits from knowing which side a given product is on.
§04Where our own products sit, stated plainly
Worth being unambiguous rather than leaving it implied. True Bond’s monitors are observation devices. They provide video, audio, infrared night vision, two-way talk, and an ambient room temperature reading. They do not measure heart rate, oxygen saturation, respiratory rate, or any other vital sign, and we make no claims about detecting, preventing or reducing the risk of any medical condition.
That’s a product-scope statement, not a competitive one — devices in the measurement category serve a purpose ours don’t attempt, and the ones that have been through medical device authorisation have demonstrated something ours hasn’t been asked to demonstrate. The reason to state it clearly is that the word “monitor” spans both categories, and a buyer shouldn’t have to infer which one they’re looking at. Full specifications are on the product pages.
The temperature reading is worth a specific note, since it appears in the FDA’s list of vital signs. Ours measures ambient room temperature via an external probe — a general room-condition indicator, not body temperature and not a clinical measurement. That distinction is covered in detail in the temperature monitoring article.
§05What this means when you’re shopping
- Does this product claim to measure any vital sign — heart rate, oxygen saturation, breathing rate, body temperature?
- If yes, does it have marketing authorisation from the relevant regulator in your market, and can the seller point to it specifically?
- Does the marketing use health-adjacent language without an explicit claim — “breathing detection,” “peace of mind about SIDS,” “know they’re okay”?
- Does the product page distinguish room temperature from body temperature, since these are very different measurements?
- Are alerts framed as prompts to check, or as clinical indications that something is wrong?
- Would you change your own behaviour because the device is running — and is that change something you’d be comfortable with if the device were simply wrong?
§06The rest of this series
Four articles take the pieces of this apart in more detail: how vital-sign monitoring is actually regulated and what “FDA-cleared” does and doesn’t mean; which emerging technologies are proven and which are still concept demonstrations; what a monitor structurally cannot do, regardless of features; and how to read the health-adjacent language that appears on product pages without ever making a claim outright.
§07Frequently asked questions
Is a baby monitor a medical device?
It depends entirely on what it claims to do. A video or audio monitor providing a camera feed, sound, night vision and a room temperature reading is an observation device — it presents information a caregiver interprets, and it’s regulated as consumer electronics for electrical safety, radio compliance and materials. A device claiming to measure vital signs such as heart rate, oxygen saturation or respiratory rate is producing a clinical reading intended to prompt medical action, which regulators treat as a medical purpose requiring marketing authorisation before lawful sale.
What did the FDA say about infant vital signs monitors?
On 16 September 2025 the FDA issued a safety communication warning consumers, caregivers and healthcare providers about unauthorised infant monitors used for measuring vital signs — heart or pulse rate, oxygen saturation, breathing or respiratory rate, and body temperature. It stated that many such devices sold over the counter lack FDA marketing authorisation, meaning the agency has not evaluated their safety and effectiveness. It also noted these devices have not been evaluated to support monitoring for asthma, apnea, SIDS or SUID, and that infant monitors are not a replacement for adult supervision or safe sleep practices.
Can a baby monitor prevent SIDS?
The FDA has stated it is not aware of any clinical or scientific evidence showing that currently available baby products prevent or reduce the chance of SIDS, and that any product marketed with such claims has not been cleared or approved for that use. This is worth knowing as a matter of what regulators have said, independent of any specific product. Questions about infant sleep safety belong with a paediatrician or qualified healthcare professional rather than with a device specification.
Does a room temperature display make a monitor a medical device?
Ambient room temperature and body temperature are different measurements, and the distinction matters. A room temperature reading is a general environmental indicator — it tells you something about the space, not about the child, and it’s the kind of general-awareness information that sits in the observation category. A device claiming to measure a baby’s body temperature is producing a physiological reading, which falls on the measurement side of the line. Product pages don’t always make this explicit, so it’s worth checking which one a given feature actually provides.
Do True Bond monitors measure vital signs?
No. They provide video, audio, infrared night vision, two-way talk, and an ambient room temperature reading via an external probe. They do not measure heart rate, oxygen saturation, respiratory rate or body temperature, and we make no claims about detecting, preventing or reducing the risk of any medical condition. They are observation devices, regulated as consumer electronics — which is a statement of product scope rather than a comment on devices that have been through medical device authorisation for purposes ours doesn’t attempt.
Ask us what our products don’t do
We’ll tell you plainly where the scope ends — no vital signs, no medical claims, no implied health outcomes. Knowing the boundary is part of knowing what you’re buying.
Ask about product scope → info@truebondtech.com · WhatsApp +86 189 2846 4489 · View productsThis series