Is esp8266 profitable to sell on Amazon United States?

The niche generates $25K/yr across 13 tracked products. 90-day search growth is -14.4%. Flapen's verdict: Skip it (35/100).

How competitive is the esp8266 niche?

7 brands and 8 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in esp8266?

Top complaints mined from reviews: Defective Material/Parts, Advertised Vs Actual Product, Functionality-Overall. The return rate is 1.8%.

When does demand for esp8266 peak?

Demand peaks in Dec; the busiest month runs 1.5× the quietest.

What does it cost to enter the esp8266 niche?

Listings span $5.70–$23.79; the average listing price is $14.06 (sweet spot $15–$100). The average incumbent carries 325 reviews — the moat a new listing must climb.

esp8266

Skip it

A small market ($25K/yr) — this niche doesn't clear our bar today.

Review moat

Great324.85

avg incumbent reviews — the moat a new listing must climb

Returns

Great1.8%

return rate — above 5% kills the launch gate

Avg price

Good$14.06

avg listing price — sweet spot $15–$100

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Price range

Okay$5.70–$23.79

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

Conversion

Okay2.5%

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

Competition

Bad71%

top-5 click share — a locked-up shelf

Growth

Bad-14.4%

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

Brand share

Bad94%

top-5 brand share — brand-locked demand

Market size

Bad$25K

$25K/yr · 71K searches

According to Flapen's Amazon United States niche tracking, esp8266 is a $25K/yr Amazon United States market (71K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Dec. Verdict: Skip it — 35/100.

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

esp8266 market data

Units sold / yr: 3K–3K; avg 100–250/product
Revenue / yr: $35K–$42K; units × avg price
Conversion rate: 2.5%
Avg BSR: #907
Page quality: 0%
Prime: 100%
Sponsored: 92%
Out of stock: 12.0%
Avg brand age: 55 months
Avg seller age: 253 days

Competition & brand share

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

Brands

7 falling

Sellers

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

Hosyond34%
HiLetgo31%
ACEIRMC14%
ideaspark10%
FORIOT5%
AITRIP4%
Open — no brand owns it (1 brand, 3%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -14.4% search growth over the last 90 days.

Peak months: Dec · busiest ÷ quietest = 1.5×

Open Trend

Top esp8266 search terms

esp826649K/yr -10.1%2.4% conv.
nodemcu6K/yr +4.7%2.0% conv.
esp8266 wifi module7K/yr -42.3%3.6% conv.
nodemcu esp82664K/yr -19.3%3.2% conv.
esp8266 nodemcu2K/yr -21.6%6.7% conv.
esp 82663K/yr -35.3%2.5% conv.

All search terms

Top esp8266 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Hosyond 3Pcs ESP8266 ESP-12E CP2102 NodeMCU Lua Wireless Module Development Board for Arduino IDE/Micropython

Hosyond$13.694.4★376 rev

HiLetgo 3pcs ESP8266 NodeMCU Lua ESP-12E CP2102 USB C Type-C Interface IOT Internet of Things Wireless WiFi Development Board Module

HiLetgo$17.104.5★45 rev

ACEIRMC 5pcs ESP8266 ESP-12 ESP-12F NodeMcu Mini D1 Module WeMos Lua 4M Bytes WLAN WiFi Internet Development Board Base on ESP8266 ESP-12F for Arduino Compatible with WeMos D1 Mini

ACEIRMC$14.614.5★776 rev

NodeMCU ESP8266 Development Board Integrates 0.96 inch OLED Display with Protector Case CH340 ESP-12E WiFi Wireless Module USB Type-C Works for Arduino Micropython(Solder PIN) (Yellow Blue OLED)

ideaspark$8.105.0★2 rev

HiLetgo 3pcs ESP8266 NodeMCU CP2102 ESP-12E Development Board Open Source Serial Module Works Great for Arduino IDE/Micropython (Large)

HiLetgo$16.124.6★1,398 rev

Newest

by launch date

NodeMCU ESP8266 Development Board Integrates 0.96 inch OLED Display with Protector Case CH340 ESP-12E WiFi Wireless Module USB Type-C Works for Arduino Micropython(Solder PIN) (Yellow Blue OLED)

ideaspark$8.102 rev

1y ago

FORIOT 2Pcs ESP8266 Development Board with 0.96-Inch OLED Color Display Type-C to Serial Port CH340 Driver NodeMCU ESP-12E Module Pin Header Soldered for Ar-DUI-no IDE

FORIOT$16.4124 rev

1y ago

YEJMKJ ESP8266 Development Board ESP-12F Mini D1 Module 4M Bytes WiFi

YEJMKJ$5.705 rev

2y ago

HiLetgo 3pcs ESP8266 NodeMCU Lua ESP-12E CP2102 USB C Type-C Interface IOT Internet of Things Wireless WiFi Development Board Module

HiLetgo$17.1045 rev

2y ago

NodeMCU ESP8266 Development Board with 0.96 Inch OLED Display CH340 Driver ESP-12E WiFi Wireless Module and Micro USB Works Great for Arduino IDE/Micropython Programming (Pin Header Soldered)

ideaspark$11.1561 rev

3y ago

What buyers say about esp8266

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

What buyers love

Value For Money16%

“Great value for money”

Connectivity-Overall15%

“The connectivity has been great”

Compatibility-Overall13%

“compatability and updated product”

Design-Overall13%

“Works amazing and love the built in oled”

Advertised Vs Actual Product10%

“works like a charm”

Ease Of Use10%

“easy to use after”

Quality-Overall8%

“Great quality”

Weight Light5%

“Great for lightweight projects”

Assembly/Installation3%

“the Arduino IDE setup was not bad at all even for someone who is not super deep into embedded stuff”

Durability3%

“running for about a month now with no issues”

What buyers complain about

Defective Material/Parts25%

“Worst item, did not even work and seller would even give a refund”

Advertised Vs Actual Product13%

“Cons: Their branding is very inconsistent”

Functionality-Overall13%

“- neither worked”

Quality-Overall13%

“I should expect better quality than that”

Instructions/User Manual/Troubleshooting13%

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

Size-Overall6%

“They are tiny”

Top return reasons

Functionality-Overall24%

Compatibility-Overall17%

Advertised Vs Actual Product16%

Value For Money10%

Size-Overall7%

Defective Material/Parts6%

Constant Reboot Or Restart4%

Connectivity-Overall4%

Add-Ons/Attachments2%

Touch Screen2%

Common questions

Is esp8266 profitable to sell on Amazon United States?: The niche generates $25K/yr across 13 tracked products. 90-day search growth is -14.4%. Flapen's verdict: Skip it (35/100).
How competitive is the esp8266 niche?: 7 brands and 8 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in esp8266?: Top complaints mined from reviews: Defective Material/Parts, Advertised Vs Actual Product, Functionality-Overall. The return rate is 1.8%.
When does demand for esp8266 peak?: Demand peaks in Dec; the busiest month runs 1.5× the quietest.
What does it cost to enter the esp8266 niche?: Listings span $5.70–$23.79; the average listing price is $14.06 (sweet spot $15–$100). The average incumbent carries 325 reviews — the moat a new listing must climb.