---
title: "Rectal Thermometer for Babies — $541K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/baby-products/rectal-thermometer-for-babies"
last_updated: "2026-08-09T10:51:38.391Z"
locale: en
meta:
description: "Niche score 41/100 · $541K/yr market · 363K searches/yr · $10.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $541K/yr market · 363K searches/yr · $10.01 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Rectal Thermometer for Babies — $541K/yr Amazon US Niche (2026) - Flapen"
---
# **rectal thermometer for babies**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 62Growth 22Conversion 97Competition 14Returns 92Price range 4Avg price 33Brand share 0Review moat 22Quality gap 43
**Conversion**
**Incredible****14.9%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.2%**
return rate — above 5% kills the launch gate
**Market size**
**Good****$541K**
$541K/yr · 363K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Okay****$10.01**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-5.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****9,205.3**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Price range**
**Bad****$4.43–$15.43**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, rectal thermometer for babies is a $541K/yr Amazon United States market (363K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 41/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **rectal thermometer for babies market data**
- **Units sold / yr**
- **50K–60K**
- avg 6,000–8,000/product
- **Revenue / yr**
- **$501K–$601K**
- units × avg price
- **Conversion rate**
- **14.9%**
- **Avg BSR**
- **#119**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **70%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **76 months**
- **Avg seller age**
- **162 days**
## **Competition & brand share**
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **—flat
**Sellers**
**24**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**0%**
- Frida54% - Boncare26% - Vicks12% - Safety 1st6% - Tempx2%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -5.3% search growth over the last 90 days.
10K6KPrime Day '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/baby-products/rectal-thermometer-for-babies/trend)
## **Top rectal thermometer for babies search terms**
- **rectal thermometer for babies**157K/yr-9.7%16.2% conv. - **baby rectal thermometer**58K/yr+6.5%13.3% conv. - **rectal thermometer**55K/yr-4.0%8.3% conv. - **infant rectal thermometer**21K/yr-8.2%17.8% conv. - **frida baby rectalthermometer**14K/yr-23.6%17.6% conv. - **frida rectalthermometer**10K/yr-18.3%17.3% conv. - **vicks baby rectal thermometer**4K/yr+31.1%3.8% conv. - **baby thermometer rectal**4K/yr+4.9%11.5% conv. - **newborn rectal thermometer**3K/yr+27.5%19.4% conv. - **butt thermometer baby**4K/yr-2.3%11.8% conv. [**All search terms **](https://flapen.com/research/us/baby-products/rectal-thermometer-for-babies/search-terms)
## **Top rectal thermometer for babies 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%$54K20%$108K30%$162K40%$217K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Frida Baby Rectal Thermometer for Babies Digital Fever Thermometer for Babies Newborns & Infants Quick & Accurate Temperature Check Water Resistant Clear Case Memory Holds Last 10 Readings**Frida**$13.52**4.8★11,753 rev](https://www.amazon.com/dp/B0823DXJS9) [2**Frida Baby 3-in-1 Rectal Underarm & Oral Thermometer for Kids Digital Baby Thermometer for Infants Toddlers & Kids Quick & Accurate Temperature Check Includes Carrying Case for Storage**Frida**$15.43**4.6★3,759 rev](https://www.amazon.com/dp/B08GVN8XJL) [3**Boncare 10 Seconds Digital Thermometer for Adults and Kids - Accurate & Safe Rectal Thermometer for Baby with Fever Alarm Oral Thermometer (Dark Blue)**Boncare**$7.47**4.4★33,298 rev](https://www.amazon.com/dp/B08B7V2RG3) [4**Boncare 9 Seconds Basal Body Thermometer for Ovulation Oral Thermometer for Adults and Kids - Accurate Rectal Thermometer with Fever Alarm and Large Display (Rice-White)**Boncare**$14.21**4.3★2,847 rev](https://www.amazon.com/dp/B0D5Q7TNCG) [5**Vicks Baby Rectal Thermometer Baby Thermometer for Rectal Temperature Short and Flexible Tip with Fast Read Times and Large Digital Display**Vicks**$10.01**4.4★2,418 rev](https://www.amazon.com/dp/B0002AHVZU)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**8 Seconds Thermometer for Adults & Kids Accurate & Safe Baby Thermometer with Fever Alarm and Memory Recall Oral Rectal or Underarm Use (White)**Tempx**$4.43**428 rev5mo ago](https://www.amazon.com/dp/B0GHXTY6PZ) [**Boncare 9 Seconds Basal Body Thermometer for Ovulation Oral Thermometer for Adults and Kids - Accurate Rectal Thermometer with Fever Alarm and Large Display (Rice-White)**Boncare**$14.21**2,847 rev2y ago](https://www.amazon.com/dp/B0D5Q7TNCG) [**Vicks SpeedRead Digital Thermometer for Baby Kids & Adults Color-Coded Readings Oral Baby Rectal Thermometer or Under The Arm Water Resistant**Vicks**$9.99**3,154 rev3y ago](https://www.amazon.com/dp/B0C82QD5BB) [**Frida Baby 3-in-1 Rectal Underarm & Oral Thermometer for Kids Digital Baby Thermometer for Infants Toddlers & Kids Quick & Accurate Temperature Check Includes Carrying Case for Storage**Frida**$15.43**3,759 rev5y ago](https://www.amazon.com/dp/B08GVN8XJL) [**Boncare 10 Seconds Oral Thermometer for Adults and Kids - Accurate & Safe Rectal Thermometer for Baby with Fever Alarm Digital Thermometer (Light Blue)**Boncare**$6.88**25,623 rev5y ago](https://www.amazon.com/dp/B08B8BDG42)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**8 Seconds Thermometer for Adults & Kids Accurate & Safe Baby Thermometer with Fever Alarm and Memory Recall Oral Rectal or Underarm Use (White)**Tempx**$4.43**4.4★**▲ 231%**](https://www.amazon.com/dp/B0GHXTY6PZ) [**Safety 1st Rapid Read 3-In-1 Thermometer Aqua One Size**Safety 1st**$13.17**4.6★**▲ 52%**](https://www.amazon.com/dp/B07G3JZ4LF) [**Vicks Baby Rectal Thermometer Baby Thermometer for Rectal Temperature Short and Flexible Tip with Fast Read Times and Large Digital Display**Vicks**$10.01**4.4★**▲ 45%**](https://www.amazon.com/dp/B0002AHVZU) [**Frida Baby 3-in-1 Rectal Underarm & Oral Thermometer for Kids Digital Baby Thermometer for Infants Toddlers & Kids Quick & Accurate Temperature Check Includes Carrying Case for Storage**Frida**$15.43**4.6★**▲ 40%**](https://www.amazon.com/dp/B08GVN8XJL) [**Boncare 10 Seconds Digital Thermometer for Adults and Kids - Accurate & Safe Rectal Thermometer for Baby with Fever Alarm Oral Thermometer (Dark Blue)**Boncare**$7.47**4.4★**▲ 35%**](https://www.amazon.com/dp/B08B7V2RG3)
**~~View all trending →~~**
## **What buyers say about rectal thermometer for babies**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**20%
*“easy to operate”*
**Temperature Control**17%
*“you can easily read the temperature”*
**Accuracy-Overall**11%
*“Accurate and easy to use”*
**Value For Money**10%
*“Cheap Price”*
**Quality-Overall**8%
*“Good quality and seems quite accurate”*
**Efficiency**6%
*“Effective”*
**Advertised Vs Actual Product**5%
*“Exactly as advertised”*
**Display-Overall**3%
*“The display works fine”*
**Size-Overall**1%
*“The size is convenient”*
**Health Monitoring**1%
*“A reliable and accessible option to monitor the health of the whole family”*
### **What buyers complain about **
**Measurement/Reading Accuracy**20%
*“Inaccurate reading”*
**Accuracy-Overall**10%
*“Not Accurate”*
**Battery Life**10%
*“Battery life is poor”*
**Temperature Control**10%
*“The stupidest thermos control that never work correctly”*
**Functionality-Overall**9%
*“It doesn't function”*
**Durability**7%
*“Doesn't last”*
**Quality-Overall**7%
*“Awful quality control”*
**Fever Relief**3%
*“Definitely not something I would trust when checking for an actual fever”*
**Value For Money**2%
*“Waste of money”*
**Advertised Vs Actual Product**1%
*“not as listed”*
### **Top return reasons **
**Measurement/Reading Accuracy**32%
**Functionality-Overall**18%
**Value For Money**7%
**Temperature Control**7%
**Heating**6%
**Accuracy-Overall**5%
**Display-Overall**4%
**Advertised Vs Actual Product**4%
**Battery Life**2%
**Product Condition**2%
## **Common questions**
- **Is rectal thermometer for babies profitable to sell on Amazon United States?**
- The niche generates $541K/yr across 10 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -5.3%. Flapen's verdict: Skip it (41/100).
- **How competitive is the rectal thermometer for babies niche?**
- 5 brands and 24 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in rectal thermometer for babies?**
- Top complaints mined from reviews: Measurement/Reading Accuracy, Accuracy-Overall, Battery Life. The return rate is 1.2%.
- **When does demand for rectal thermometer for babies peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the rectal thermometer for babies niche?**
- Listings span $4.43–$15.43; the average listing price is $10.01 (sweet spot $15–$100). The average incumbent carries 9,205 reviews — the moat a new listing must climb.
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