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50

esp32

Worth a look

Shows a thin review moat (215 avg reviews), but a small market ($74K/yr) keeps it on the watch list.

Market size 19Growth 26Conversion 33Competition 57Returns 89Price range 72Avg price 65Brand share 54Review moat 89Quality gap 62

Review moat

Great215.2

avg incumbent reviews — the moat a new listing must climb

Returns

Great1.3%

return rate — above 5% kills the launch gate

Price range

Good£4.92–£40.63

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

Avg price

Good£13.78

avg listing price — sweet spot $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Good51%

top-5 click share — leaders hold, buyers still browse

Brand share

Good73%

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

Conversion

Okay2.6%

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

Growth

Okay+1.0%

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

Market size

Bad£74K

£74K/yr · 207K searches

According to Flapen's Amazon United Kingdom niche tracking, esp32 is a £74K/yr Amazon United Kingdom market (207K searches/yr). The top 5 brands hold 73% of demand. Verdict: Worth a look — 50/100.

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

esp32 market data

Units sold / yr
6K–8K
avg 250–500/product
Revenue / yr
£83K–£110K
units × avg price
Conversion rate
2.6%
Avg BSR
#144
Page quality
0%
Prime
97%
Sponsored
80%
Out of stock
0.6%
Avg brand age
37 months
Avg seller age
182 days

Competition & brand share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

21 rising

Sellers

37

Top-5 brand share

73%

Top 20: 99%

Top-5 click share

51%

Top 20: 87%

Open market

24%

  • ELEGOO37%
  • diymore16%
  • DST8%
  • FREENOVE7%
  • JZK5%
  • ESP4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +1.0% search growth over the last 90 days.
5K3KSpike '24Black Friday '24Prime Day '25Spike '25Black Friday '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

Top esp32 search terms

  • esp32152K/yr
  • esp32 development board18K/yr
  • esp16K/yr
  • esp 329K/yr
  • esp32 devkit3K/yr
  • esp32 devkit v13K/yr
  • esp32 wroom4K/yr
  • esp32 board2K/yr
All search terms

Top esp32 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%4%£3K8%£6K12%£9K16%£12K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about esp32

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

What buyers love

Value For Money18%

“Great value”

Advertised Vs Actual Product11%

“Works as advertised”

Connectivity-Overall10%

“connecting thunder fast”

Compatibility-Overall8%

“seems compatible, do not have to press boot loader button as much as on some other clones”

Ease Of Use7%

“That makes it a lot more convenient than some of the others”

Assembly/Installation7%

“Very easy to setup tutorial is excellent the best kit I have seen and used”

Quality-Overall6%

“got a good branded board”

Design-Overall5%

“Looks great if it works”

Functionality-Overall3%

“Can confirm these are correct and working perfectly, EXCEPT the listing states Quad PSRAM,”

Signal Strength3%

“Signal is strong”

What buyers complain about

Quality-Overall12%

“I just wish they would have simply ensured quality control is better”

Instructions/User Manual/Troubleshooting10%

“Something to note that is absent from the instructions that beginners may not know is that you may need to install drivers for the specific ESP-32 chip in order for Arduino IDE to detect it”

Advertised Vs Actual Product10%

“Beware that the description is wrong”

Heating9%

“try to connect anything else the regular gets very hot”

Connectivity-Overall7%

“Wifi not working”

Size-Overall6%

“are very small”

Value For Money6%

“Very disappointing for £10”

Ease Of Use5%

“Has limited use”

Durability5%

“Failed after a few months of use”

Display Colors5%

“It's a display that's cheap and yellow”

Top return reasons

Functionality-Overall32%
Connectivity-Overall17%
Defective Material/Parts17%
Compatibility-Overall7%
Software/Application2%
Socket/Port/Plug2%
Size-Overall2%
Advertised Vs Actual Product2%
Heating2%
Touch Screen2%

Common questions

Is esp32 profitable to sell on Amazon United Kingdom?
The niche generates £74K/yr across 35 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is +1.0%. Flapen's verdict: Worth a look (50/100).
How competitive is the esp32 niche?
21 brands and 37 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 73% of demand.
What do buyers complain about in esp32?
Top complaints mined from reviews: Quality-Overall, Instructions/User Manual/Troubleshooting, Advertised Vs Actual Product. The return rate is 1.3%.
When does demand for esp32 peak?
Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the esp32 niche?
Listings span £4.92–£40.63; the average listing price is £13.78 (sweet spot $15–$100). The average incumbent carries 215 reviews — the moat a new listing must climb.