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wemos d1 mini

Skip it

A small market ($17K/yr) — this niche doesn't clear our bar today.

Market size 4Growth 15Conversion 51Competition 15Returns 86Price range 55Avg price 73Brand share 10Review moat 93Quality gap 65

Review moat

Great143.91

avg incumbent reviews — the moat a new listing must climb

Returns

Great1.5%

return rate — above 5% kills the launch gate

Avg price

Good$14.75

avg listing price — sweet spot $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Good$5.70–$26.36

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Good4.2%

search→purchase rate — share of searches ending in a sale

Growth

Bad-20.9%

90-day search growth — must beat 0% to launch

Competition

Bad82%

top-5 click share — a locked-up shelf

Brand share

Bad96%

top-5 brand share — brand-locked demand

Market size

Bad$17K

$17K/yr · 28K searches

According to Flapen's Amazon United States niche tracking, wemos d1 mini is a $17K/yr Amazon United States market (28K searches/yr). The top 5 brands hold 96% of demand. Demand peaks in Dec. Verdict: Skip it — 37/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

wemos d1 mini market data

Units sold / yr
1K–2K
avg 100–250/product
Revenue / yr
$18K–$22K
units × avg price
Conversion rate
4.2%
Avg BSR
#1,625
Page quality
0%
Prime
100%
Sponsored
82%
Out of stock
6.3%
Avg brand age
56 months
Avg seller age
268 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

8

Top-5 brand share

96%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

2%

  • Hosyond39%
  • ACEIRMC24%
  • YEJMKJ21%
  • AITRIP10%
  • QCCAN2%
  • ATNSINC2%
  • Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -20.9% search growth over the last 90 days.
1K600Holiday '24Spike '25Prime Day '25Black Friday '25SepDecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 1.6×

Top wemos d1 mini search terms

  • wemos d1 mini16K/yr
  • d1 mini7K/yr
  • esp8266 d1 mini3K/yr
  • wemos2K/yr
  • wemos d11K/yr
All search terms

Top wemos d1 mini products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$2K20%$3K30%$5K40%$7K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

What buyers say about wemos d1 mini

What buyers praise and complain about, mined from review topics.

What buyers love

Connectivity-Overall32%

“The connectivity has been great”

Compatibility-Overall14%

“compatability and updated product”

Design-Overall8%

“Thoughtfully designed”

Quality-Overall7%

“But I have no complaints”

Weight Light7%

“Great for lightweight projects”

Functionality-Overall7%

“All appears to be functioning properly”

Value For Money5%

“Less then $3 per computer with variouis connector, great deal”

Ease Of Use4%

“One of the biggest advantages is that they simply work”

Socket/Port/Plug4%

“I especially appreciate the USB-C connector”

What buyers complain about

Advertised Vs Actual Product40%

“Cons: Their branding is very inconsistent”

Instructions/User Manual/Troubleshooting10%

“Initially I was not able to upload a sketch to the device”

Quality-Overall10%

“I should expect better quality than that”

Functionality-Overall10%

“- neither worked”

Computation Performance7%

“They run a little slow”

Top return reasons

Functionality-Overall27%
Compatibility-Overall15%
Advertised Vs Actual Product12%
Connectivity-Overall9%
Constant Reboot Or Restart9%
Defective Material/Parts8%
Quality-Overall4%
Size-Overall4%
Socket/Port/Plug4%
Software/Application4%

Common questions

Is wemos d1 mini profitable to sell on Amazon United States?
The niche generates $17K/yr across 11 tracked products. 90-day search growth is -20.9%. Flapen's verdict: Skip it (37/100).
How competitive is the wemos d1 mini niche?
7 brands and 8 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 96% of demand.
What do buyers complain about in wemos d1 mini?
Top complaints mined from reviews: Advertised Vs Actual Product, Instructions/User Manual/Troubleshooting, Quality-Overall. The return rate is 1.5%.
When does demand for wemos d1 mini peak?
Demand peaks in Dec; the busiest month runs 1.6× the quietest.
What does it cost to enter the wemos d1 mini niche?
Listings span $5.70–$26.36; the average listing price is $14.75 (sweet spot $15–$100). The average incumbent carries 144 reviews — the moat a new listing must climb.