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53

esp

Worth a look

Shows a sweet-spot price point ($20.76 avg), but a concentrated shelf (top 5 take 71% of clicks) keeps it on the watch list.

Market size 75Growth 40Conversion 31Competition 25Returns 86Price range 85Avg price 89Brand share 27Review moat 73Quality gap 50

Avg price

Great$20.76

avg listing price — sweet spot $15–$100

Returns

Great1.5%

return rate — above 5% kills the launch gate

Price range

Great$9.02–$55.58

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

Market size

Great$851K

$851K/yr · 1.7M searches

Review moat

Good585.65

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+11.9%

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

Conversion

Okay2.5%

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

Brand share

Okay89%

top-5 brand share — brands hold most of the demand

Competition

Bad71%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, esp is a $851K/yr Amazon United States market (1.7M searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Jan–May. Verdict: Worth a look — 53/100.

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

esp market data

Units sold / yr
30K–40K
avg 1,500–2,000/product
Revenue / yr
$623K–$830K
units × avg price
Conversion rate
2.5%
Avg BSR
#59
Page quality
0%
Prime
100%
Sponsored
94%
Out of stock
0.0%
Avg brand age
41 months
Avg seller age
198 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 falling

Sellers

14

Top-5 brand share

89%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

9%

  • AITRIP36%
  • HiLetgo23%
  • ELEGOO21%
  • hiBCTR5%
  • LAFVIN4%
  • seeed studio2%
  • Open — no brand owns it (5 brands, 9%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +11.9% search growth over the last 90 days.
50K30KSpike '24Black Friday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, May · busiest ÷ quietest = 2.7×

Top esp search terms

  • esp32893K/yr
  • esp535K/yr
  • esp 3266K/yr
  • esp32 dev board72K/yr
  • esp32 development board24K/yr
  • esp32 board20K/yr
  • esp32 devkit17K/yr
  • esp-328K/yr
  • esp32 microcontroller6K/yr
  • esp32 wifi6K/yr
All search terms

Top esp 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%$85K20%$170K30%$255K40%$340K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

What buyers say about esp

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

What buyers love

Value For Money18%

“Great value”

Quality-Overall13%

“Amazing, great quality boards”

Ease Of Use8%

“Easy use”

Advertised Vs Actual Product8%

“Exactly as advertised with a wonderful price point”

Connectivity-Overall5%

“all connected perfectly”

Design-Overall4%

“Seems everything works or looks in good shape”

Compatibility-Overall4%

“provide accurate information to ensure compatibility”

Instructions/User Manual/Troubleshooting4%

“The instructions are well detailed”

Strength4%

“powerful enough for more advanced projects”

Software/Application3%

“Using with Visual Studio Code + PlatformIO, easy config, easy programming”

What buyers complain about

Connectivity-Overall15%

“Didn't connect :”

Size-Overall11%

“Too Wide”

Functionality-Overall9%

“only 1 board worked”

Instructions/User Manual/Troubleshooting9%

“Frustrated how to get this to work”

Assembly/Installation6%

“Setup is a bit more tedious then meshtastic or other known brand”

Quality-Overall5%

“Garbage”

Advertised Vs Actual Product5%

“The listing you're looking at may be different”

Value For Money4%

“Relatively expensive”

Socket/Port/Plug3%

“The USB connectors on these are not soldered properly”

Software/Application3%

“could not get the program to compile”

Top return reasons

Functionality-Overall20%
Connectivity-Overall14%
Advertised Vs Actual Product12%
Compatibility-Overall10%
Defective Material/Parts9%
Value For Money9%
Size-Overall7%
Socket/Port/Plug6%
Software/Application2%
Product Condition1%

Common questions

Is esp profitable to sell on Amazon United States?
The niche generates $851K/yr across 17 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +11.9%. Flapen's verdict: Worth a look (53/100).
How competitive is the esp niche?
11 brands and 14 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 89% of demand.
What do buyers complain about in esp?
Top complaints mined from reviews: Connectivity-Overall, Size-Overall, Functionality-Overall. The return rate is 1.5%.
When does demand for esp peak?
Demand peaks in Jan–May; the busiest month runs 2.7× the quietest.
What does it cost to enter the esp niche?
Listings span $9.02–$55.58; the average listing price is $20.76 (sweet spot $15–$100). The average incumbent carries 586 reviews — the moat a new listing must climb.