Fetal Heartbeat Doppler Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Fetal Heartbeat Doppler sales on Amazon US totaled 46,950 units in July 2026 (▲ 9.7% vs. the prior month), generating an estimated $1,567,857 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 98.6% of unit volume and 99.1% of revenue, while a typical listing is priced at $160.17. The keyword itself pulled 15,909 Amazon queries over the same period (▼ 59.0% MoM).
Zooming out to the 12-month window ending July 2026, the fetal heartbeat doppler Top 50 moved 504,750 units and $16,879,165 in cumulative sales — an average of 42,063 units and $1,406,597 per month. Monthly throughput topped out at 49,050 units in December 2025 and dipped to 30,800 in May 2026, leaving the latest reading 36.7% higher than August 2025.
Fetal Heartbeat Doppler Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
47K
▲ 9.7% MoM
Monthly Revenue 2026/07
$1.6M
▲ 5.6% MoM
Top 10 Market Share 2026/07
98.6%
Fetal Heartbeat Doppler Market Share & Sales Concentration on Amazon US — July 2026
The most-sold fetal heartbeat doppler listing on Amazon US in July 2026 is ASIN B01A4W8AUK (Brand: KARDIAMOBILE), which sold 10,000 units at $79.00 apiece — equal to 21.3% of every unit tracked in this report.
The Top 10 ASINs account for 46,300 units and $1,553,389 in July 2026 — 98.6% of unit volume and 99.1% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Fetal Heartbeat Doppler' on Amazon
July 2026
Is 98.6% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B01A4W8AUK
KardiaMobile 1-Lead EKG Monitor, Medical-Grade FDA-Cleared Personal Heart Monitor, Detects Normal, AFib & Arrhythmias, 30 Second Results, Works with Most Smartphones, HSA&FSA Eligible
10K
▲ 0.0%vs. prior month
$780.3K
latest month
12-month trend
B0CNQ7TG4Y
Ritual Natal Choline Supplement 550mg - 60 Capsules - 30 Servings | Support Baby’s Cognitive Function When Taken During Pregnancy and Postpartum Choline Content in Breastmilk* - Vegan - Citrus
10K
▲ 0.0%vs. prior month
$319.8K
latest month
12-month trend
B08WQ2NRMV
Aquasonic Clear Ultrasound Gel, 8.5 oz Squeeze Bottle, Non-Staining | Clear, acoustically correct ultrasound gel in an 8.5 oz squeeze bottle; water-soluble, non-staining, and hypoallergenic.
9K
▲ 12.5%vs. prior month
$57.2K
latest month
12-month trend
B0CD5NFR95
MOON PARK Pregnancy Pillows for Sleeping - 57 Inch U Shaped Full Body Maternity Pillow with Removable Cover - Support for Back, Legs, Belly, Hips - Pregnancy Pillow for Women - Grey
9K
▲ 50.0%vs. prior month
$250.3K
latest month
12-month trend
B09S2K1R7X
Summer Fridays Babymoon Belly Balm - Nourishing Balm + Body Moisturizer Enriched with Calendula Oil + Vitamin E to Help Reduce the Appearance of Stretch Marks and Dry Skin (5 Fl Oz) | Nourishing Belly Butter Body Moisturizer with Calendula Oil & Vitamin E, Helps Reduce Stretch Marks, Pregnancy Must Haves
3K
▲ 0.0%vs. prior month
$87K
latest month
12-month trend
B001U2NLIA
Aquasonic Clear Ultrasound Gel, 60 g Doppler Tube | Clear, acoustically correct ultrasound gel in a 60 g tube; water-soluble and non-staining, ideal for Doppler.
3K
▲ 0.0%vs. prior month
$14K
latest month
12-month trend
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Best Fetal Heartbeat Doppler Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Aquasonic Clear is the best-performing fetal heartbeat doppler brand in July 2026, moving 12,500 units across 3 ASINs for 27.0% of Top 10 volume. KARDIAMOBILE follows with 10,000 units (21.6%), ahead of Ritual on 10,000 units (21.6%).
With 8 brands splitting the Top 10 and 70.2% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $5.78 to $79.00, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Aquasonic Clear
3 ASINs in Top 10
27.0%
Units
12.5K
Revenue
$74.6K
Avg. price
$5.78
B08WQ2NRMV
$6.33·★4.7·13.4K revsAquasonic Clear Ultrasound Gel, 8.5 oz Squeeze Bottle, Non-Staining | Clear, acoustically correct ultrasound gel in an 8.5 oz squeeze bottle; water-soluble, non-staining, and hypoallergenic.
Units sold9KB001U2NLIA
$4.75·★4.7·13.4K revsAquasonic Clear Ultrasound Gel, 60 g Doppler Tube | Clear, acoustically correct ultrasound gel in a 60 g tube; water-soluble and non-staining, ideal for Doppler.
Units sold3KB08RMYR79C
$6.25·★4.7·13.4K revsAquasonic Clear Ultrasound Gel, 60 g Doppler Tube, 2 Pack | Clear, acoustically correct ultrasound gel in a 60 g tube; water-soluble and non-staining, ideal for Doppler.
Units sold500
KARDIAMOBILE
1 ASIN in Top 10
21.6%
Units
10K
Revenue
$780.3K
Avg. price
$79.00
B01A4W8AUK
$79.00·★4.4·83.1K revsKardiaMobile 1-Lead EKG Monitor, Medical-Grade FDA-Cleared Personal Heart Monitor, Detects Normal, AFib & Arrhythmias, 30 Second Results, Works with Most Smartphones, HSA&FSA Eligible
Units sold10K
Ritual
1 ASIN in Top 10
21.6%
Units
10K
Revenue
$319.8K
Avg. price
$31.98
B0CNQ7TG4Y
$31.98·★4.5·1.1K revsRitual Natal Choline Supplement 550mg - 60 Capsules - 30 Servings | Support Baby’s Cognitive Function When Taken During Pregnancy and Postpartum Choline Content in Breastmilk* - Vegan - Citrus
Units sold10K
Trending Fetal Heartbeat Doppler Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. On the growth side, B08RN7PTK2 leads positive momentum with ▲ 100.0% MoM growth on 200 units, with B0CD5NFR95 close behind at ▲ 50.0% MoM on 9K units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B08RN7PTK2
Aquasonic Clear Ultrasound Gel, 60 g Doppler Tube, 3 Pack | Clear, acoustically correct ultrasound gel in a 60 g tube; water-soluble and non-staining, ideal for Doppler.
Price
$6.48
Rating
4.7
Reviews
13.4K
Latest month sales
B0CD5NFR95
MOON PARK Pregnancy Pillows for Sleeping - 57 Inch U Shaped Full Body Maternity Pillow with Removable Cover - Support for Back, Legs, Belly, Hips - Pregnancy Pillow for Women - Grey
Price
$29.99
Rating
4.5
Reviews
7.4K
Latest month sales
B008VUMJ9Q
Dixie EMS Fetal Stethoscope for Baby’s Heartbeat Detection, Latex-Free Fetoscope with Pinard Horn and Soft Earbuds, 22”
Unlock to view ASIN details and product titles
Price
$14.95
Rating
3.3
Reviews
2.1K
Latest month sales
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