Spectra S1 Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Spectra S1 sales on Amazon US totaled 138,800 units in July 2026 (▼ 19.5% vs. the prior month), generating an estimated $9,735,915 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 61.2% of unit volume and 52.1% of revenue, while a typical listing is priced at $79.58. The keyword itself pulled 38,289 Amazon queries over the same period (▲ 0.7% MoM).
Zooming out to the 12-month window ending July 2026, the spectra s1 Top 50 moved 1,560,850 units and $122,684,842 in cumulative sales — an average of 130,071 units and $10,223,737 per month. Monthly throughput topped out at 172,400 units in June 2026 and dipped to 82,800 in May 2026, leaving the latest reading 0.4% lower than August 2025.
Spectra S1 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
138.8K
▼ 19.5% MoM
Monthly Revenue 2026/07
$9.7M
▼ 49.8% MoM
Top 10 Market Share 2026/07
61.2%
Spectra S1 Market Share & Sales Concentration on Amazon US — July 2026
The most-sold spectra s1 listing on Amazon US in July 2026 is ASIN B08H9QJVNZ (Brand: Medela), which sold 20,000 units at $25.84 apiece — equal to 14.4% of every unit tracked in this report and 2.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 85,000 units and $5,072,350 in July 2026 — 61.2% of unit volume and 52.1% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Spectra S1' on Amazon
July 2026
Is 61.2% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
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Top 5 Volume Share breakdown
B08H9QJVNZ
Medela Harmony Manual Breast Pump, On-the-Go, More Milk Output | Soft-Rim Comfort Shield, 2-Phase Expression, Lightweight & Portable, 5 oz, BPA-Free, Hand Pump
20K
▲ 0.0%vs. prior month
$502.2K
latest month
12-month trend
B07CWK4S5W
haakaa Manual Breast Pump for Breastfeeding 4oz/100ml | Natural Suction, One-Piece Easy-Clean Design, Quiet & Cord-Free, Premium Silicone, Portable, BPA/PVC/Phthalate-Free
10K
▲ 0.0%vs. prior month
$129.4K
latest month
12-month trend
B0CMPBBHMZ
Nuliie Silicone Flange Inserts 13/15/17/19/21mm 10PCS for 24mm Breast Pump | Compatible with Spectra, Includes Nipple Sizer for Flanges for Accurate Sizing, Boosts Pumping Efficiency & Comfort, BPA-free
10K
▲ 0.0%vs. prior month
$99.9K
latest month
12-month trend
B0CWLHKQNT
Momcozy KleanPal Pro All-in-One Bottle Washer, Sterilizer & Dryer - White | 9 Cleaning Modes Baby Bottle Washer for Bottles, Pump Parts & Baby Essentials, Time-Saving & Hands-Free, 26 Spray Jets
10K
▼ 66.7%vs. prior month
$2.7M
latest month
12-month trend
B0C5YKZDDJ
Boon Trove Silicone Manual Breast Pump - Discreet Milk Collector - 2 Count | Hands Free Breast Pump, Includes Canvas Travel Pouch, Breastfeeding Essentials, Passive Suction, Collects Up To 3 Ounces
10K
▲ 25.0%vs. prior month
$246.5K
latest month
12-month trend
B0CY81WHD5
Nursi Luna Flange Sizing Kit for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm Flange Inserts, Nipple Measurement Tool, Fit Electric & Manual Pumps, Soft Silicone, Comfortable Pumping
6K
▲ 0.0%vs. prior month
$59.9K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Spectra S1 Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Medela is the best-performing spectra s1 brand in July 2026, moving 20,000 units across 1 ASIN for 23.5% of Top 10 volume. haakaa follows with 10,000 units (11.8%), ahead of Nuliie on 10,000 units (11.8%).
Volume is spread across 10 brands, with the top three holding 47.1% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $9.99 to $25.84, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Medela
1 ASIN in Top 10
23.5%
Units
20K
Revenue
$502.2K
Avg. price
$25.84
B08H9QJVNZ
$25.84·★4.5·22K revsMedela Harmony Manual Breast Pump, On-the-Go, More Milk Output | Soft-Rim Comfort Shield, 2-Phase Expression, Lightweight & Portable, 5 oz, BPA-Free, Hand Pump
Units sold20K
haakaa
1 ASIN in Top 10
11.8%
Units
10K
Revenue
$129.4K
Avg. price
$12.94
B07CWK4S5W
$12.94·★4.6·96K revshaakaa Manual Breast Pump for Breastfeeding 4oz/100ml | Natural Suction, One-Piece Easy-Clean Design, Quiet & Cord-Free, Premium Silicone, Portable, BPA/PVC/Phthalate-Free
Units sold10K
Nuliie
1 ASIN in Top 10
11.8%
Units
10K
Revenue
$99.9K
Avg. price
$9.99
B0CMPBBHMZ
$9.99·★4.6·4.5K revsNuliie Silicone Flange Inserts 13/15/17/19/21mm 10PCS for 24mm Breast Pump | Compatible with Spectra, Includes Nipple Sizer for Flanges for Accurate Sizing, Boosts Pumping Efficiency & Comfort, BPA-free
Units sold10K
Trending Spectra S1 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. Specifically, one ASIN forced its way in: B08MWQQN6W booked 4K units at $12.99, with ▲ 33.3% MoM change. On the growth side, B07SNHJPX1 leads positive momentum with ▲ 100.0% MoM growth on 2K units, with B0BLCYPBG7 close behind at ▲ 100.0% MoM on 2K 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.
B08MWQQN6W
Legendairy Milk Duckbill Valves for Spectra Breast Pumps, 6 Ct, BPA-Free | Pink food-grade silicone valves with pull tabs fit Spectra, Medela, Motif, BabyBuddha & Zomee; easy to clean, strong suction.
Price
$12.99
Rating
4.4
Reviews
1.7K
Latest month sales
B07SNHJPX1
Maymom Duckbill Valves Compatible with Spectra S1 S2 9 Plus Dew 350 Not Original Spectra Pump Parts S2 Accessories Replace Valve (White, 6ct)
Price
$8.90
Rating
4.7
Reviews
9.7K
Latest month sales
B0BLCYPBG7
Maymom 18mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve
Unlock to view ASIN details and product titles
Price
$19.98
Rating
4.6
Reviews
6.1K
Latest month sales
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