Is keychain thermometer profitable to sell on Amazon United States?

The niche generates $122K/yr across 27 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -14.9%. Flapen's verdict: Skip it (47/100).

How competitive is the keychain thermometer niche?

9 brands and 42 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 93% of demand.

What do buyers complain about in keychain thermometer?

Top complaints mined from reviews: Connectivity-Overall, Measurement/Reading Accuracy, Durability. The return rate is 2.2%.

What does it cost to enter the keychain thermometer niche?

Listings span $5.97–$60.46; the average listing price is $19.06 (sweet spot $15–$100). The average incumbent carries 6,447 reviews — the moat a new listing must climb.

keychain thermometer

Skip it

Brand-locked demand (top 5 brands take 93% of clicks) — this niche doesn't clear our bar today.

Avg price

Great$19.06

avg listing price — sweet spot $15–$100

Price range

Great$5.97–$60.46

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Returns

Good2.2%

return rate — above 5% kills the launch gate

Competition

Good49%

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

Conversion

Good4.5%

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

Market size

Okay$122K

$122K/yr · 144K searches

Review moat

Bad6,447.15

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-14.9%

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

Brand share

Bad93%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, keychain thermometer is a $122K/yr Amazon United States market (144K searches/yr). The top 5 brands hold 93% of demand. Verdict: Skip it — 47/100.

Data updated Jul 15, 2026 · scored weekly · How we score niches

keychain thermometer market data

Units sold / yr: 6K–8K; avg 100–250/product
Revenue / yr: $114K–$152K; units × avg price
Conversion rate: 4.5%
Avg BSR: #63
Page quality: 0%
Prime: 96%
Sponsored: 78%
Out of stock: 6.5%
Avg brand age: 55 months
Avg seller age: 171 days

Competition & brand share

The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.

Brands

9 falling

Sellers

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

49%

Top 20: 90%

Open market

AcuRite43%
Sun Company27%
GoveeLife13%
Govee8%
Coghlan's3%
Serundo Auto2%
Open — no brand owns it (3 brands, 5%)

Demand

Weekly Amazon search volume, last 30 weeks — -14.9% search growth over the last 90 days.

Open Trend

Top keychain thermometer search terms

acurite thermometer21K/yr -12.6%4.8% conv.
keychain thermometer14K/yr -8.8%2.5% conv.
backpacking thermometer12K/yr +7.1%3.0% conv.
camping thermometer12K/yr -17.6%3.1% conv.
hiking thermometer11K/yr -20.6%2.9% conv.
govee outdoor thermometer10K/yr -20.1%4.0% conv.
zipper thermometer9K/yr -27.7%1.5% conv.
thermometer keychain7K/yr -18.1%2.0% conv.
zipper pull thermometer9K/yr -20.1%1.9% conv.
acurite thermometers6K/yr -33.1%3.4% conv.

All search terms

Top keychain thermometer 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

AcuRite Portable Digital Thermometer for Indoor or Outdoor Temperature with Carabiner Clip (00333)

AcuRite$10.914.0★689 rev

GoveeLife 2-in-1 Indoor Outdoor Thermometer Hygrometer IP65 Waterproof Digital Display 197ft Buletooth Range Notification Alerts 2 Years Data Storage Export for Home Camping Patio Greenhouse

GoveeLife$20.734.4★239 rev

Sun Company Brrr-ometer - Snowsport Zipper Pull Thermometer for Jacket Parka or Backpack | Mini Outdoor Skiing & Snowboarding Keychain Thermometer

Sun Company$8.904.0★620 rev

Sun Company Digital Zipogage - Compact Zipperpull Digital Thermometer | for Skiing Snowboarding Cold-Weather Camping Snowshoeing or Any Outdoor Activity

Sun Company$20.854.1★1,077 rev

AcuRite Wireless Indoor Outdoor Temperature and Humidity Sensor with A-B-C Switch (06002M / 592TXR)

AcuRite$18.014.6★12,043 rev

Newest

by launch date

YIJINGSETC Portable Thermometer Hygrometer with Accurate Temp & Humidity Detection and Compass for a Comfortable Living Space Camping Workshop. Get it Now for a Controlled Environment Green

YIJINGSETC$13.6917 rev

8mo ago

GoveeLife 2-in-1 Indoor Outdoor Thermometer Hygrometer IP65 Waterproof Digital Display 197ft Buletooth Range Notification Alerts 2 Years Data Storage Export for Home Camping Patio Greenhouse

GoveeLife$20.73239 rev

11mo ago

Portable Mini Thermometer Digital Hygrometer Humidity Meter

CryzhalinX$13.3719 rev

11mo ago

Sun Company Zip-o-gage - Zipper Pull Thermometer for Jacket Parka or Backpack | Mini Outdoor Keychain Thermometer with Windchill Chart on Back (Green)

Sun Company$8.661,275 rev

1y ago

GoveeLife Outdoor Indoor Wireless Wi-Fi Gateway Thermometer Hygrometer IP65 Waterproof Temperature Humidity Sensor Monitor with Remote APP Alert 1312ft Monitoring Range for Home Greenhouse Patio

GoveeLife$60.46275 rev

2y ago

What buyers say about keychain thermometer

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

What buyers love

Quality-Overall12%

“Excellent quality”

Ease Of Use11%

“Easy to read”

Efficiency10%

“Does work”

Value For Money9%

“Good value for money”

Advertised Vs Actual Product6%

“As advertised”

Connectivity-Overall6%

“Great connectivity”

Temperature Control6%

“Also good to know the temperature”

Durability4%

“Durable”

Size-Overall4%

“The compact size is good”

Battery Life4%

“Battery life seems good”

What buyers complain about

Connectivity-Overall13%

“Connectivity is terrible”

Measurement/Reading Accuracy13%

“Inaccurate readings”

Durability12%

“Not gonna last”

Functionality-Overall7%

“Did not work”

Quality-Overall7%

“Need better quality control”

Battery Life5%

“Batteries dont last long”

Value For Money4%

“A little pricey”

Temperature Control4%

“Maybe the temperature isnt accurate with this one”

Size-Overall4%

“Much larger than I envisioned”

Humidification2%

“Humidity not accurate”

Top return reasons

Connectivity-Overall27%

Measurement/Reading Accuracy14%

Functionality-Overall12%

Compatibility-Overall8%

Size-Overall7%

Advertised Vs Actual Product5%

Display-Overall4%

Heating4%

Defective Material/Parts3%

Value For Money3%

Common questions

Is keychain thermometer profitable to sell on Amazon United States?: The niche generates $122K/yr across 27 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -14.9%. Flapen's verdict: Skip it (47/100).
How competitive is the keychain thermometer niche?: 9 brands and 42 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 93% of demand.
What do buyers complain about in keychain thermometer?: Top complaints mined from reviews: Connectivity-Overall, Measurement/Reading Accuracy, Durability. The return rate is 2.2%.
What does it cost to enter the keychain thermometer niche?: Listings span $5.97–$60.46; the average listing price is $19.06 (sweet spot $15–$100). The average incumbent carries 6,447 reviews — the moat a new listing must climb.