> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sonohealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Home Fetal Doppler vs Clinical Ultrasound — HeartBeats™ vs Hospital Equipment

> How does the HeartBeats™ home fetal doppler compare to clinical-grade CTG monitors, hospital ultrasound machines, and OB office handheld dopplers? Purpose, capabilities, and limitations compared.

## The Three Types of Fetal Heart Monitoring

### 1. Home Fetal Doppler (HeartBeats™)

**Purpose:** Bonding, reassurance, personal monitoring between appointments
**Technology:** Continuous wave (CW) Doppler ultrasound at 2.5 MHz
**Output:** Audible heartbeat + BPM display
**Who uses it:** Expectant parents at home
**Cost:** \$69

### 2. Clinical Handheld Doppler (OB Office)

**Purpose:** Quick fetal heart rate check during prenatal visits
**Technology:** CW Doppler ultrasound at 2–3 MHz — **same technology as HeartBeats™**
**Output:** Audible heartbeat + BPM display
**Who uses it:** OBs, midwives, labor nurses
**Cost:** \$200–600

### 3. Hospital CTG / NST Monitor (Non-Stress Test)

**Purpose:** Clinical assessment of fetal wellbeing, contraction monitoring
**Technology:** External tocodynamometry + Doppler ultrasound
**Output:** Paper/digital tracing of heart rate variability over time, uterine contractions
**Who uses it:** Hospital staff, high-risk OB monitoring
**Cost:** \$3,000–15,000+

## HeartBeats™ Is Functionally Equivalent to Clinical Handheld Dopplers

The HeartBeats™ device operates at the **same fundamental technology** as the handheld dopplers used by your OB during prenatal visits. Both use:

* 2–2.5 MHz continuous wave Doppler ultrasound
* A single probe transducer
* Output of audible heartbeat signal and BPM reading

The primary differences between HeartBeats™ and a clinical handheld doppler are price point, build quality, and regulatory classification. The underlying acoustic technology is equivalent.

## What Only Clinical Equipment Can Do

| Capability                                  | HeartBeats™ | Clinical Handheld | CTG/NST Monitor             |
| ------------------------------------------- | ----------- | ----------------- | --------------------------- |
| Detect heartbeat and BPM                    | ✅           | ✅                 | ✅                           |
| Assess heart rate variability (HRV)         | ❌           | ❌                 | ✅                           |
| Detect non-reassuring patterns              | ❌           | Limited           | ✅                           |
| Monitor uterine contractions simultaneously | ❌           | ❌                 | ✅                           |
| Assess amniotic fluid levels                | ❌           | ❌                 | Via ultrasound only         |
| Diagnose fetal distress                     | ❌           | ❌                 | Partial                     |
| Provide biophysical profile                 | ❌           | ❌                 | Requires imaging ultrasound |

The key clinical capability that home dopplers lack is **heart rate variability assessment**. A normal NST shows "reactive" patterns where the fetal heart rate accelerates with movement. A CTG tracing can show this variability over 20–40 minutes. A home doppler gives you a snapshot BPM — not a pattern over time.

## When Each Is Appropriate

| Situation                                         | Appropriate Tool                       |
| ------------------------------------------------- | -------------------------------------- |
| Listening for baby between appointments (bonding) | HeartBeats™ ✅                          |
| Counting fetal heartbeat at OB appointment        | Clinical handheld                      |
| 36-week growth scan and presentation check        | Hospital ultrasound                    |
| High-risk pregnancy monitoring                    | CTG/NST                                |
| Decreased fetal movement                          | Hospital evaluation (not home doppler) |
| Post-dates management (41+ weeks)                 | NST and clinical evaluation            |

## The Complementary Approach

HeartBeats™ and clinical monitoring are complementary, not competitive. Regular OB appointments with clinical equipment provide the diagnostic depth that home monitoring cannot. HeartBeats™ fills the space between appointments — providing the emotional connection and simple reassurance that a heartbeat is present, without replacing any clinical monitoring.

<Warning>
  Never use HeartBeats™ to delay or replace a scheduled OB appointment or a call to your provider when you have a clinical concern.
</Warning>

***

**Related:** [Safety](/fetal-doppler/safety) · [FDA Clearance](/fetal-doppler/fda-clearance) · [Product Overview](/fetal-doppler/overview)