---
title: "Water Thermometer — £75K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/baby-products/water-thermometer"
last_updated: "2026-08-11T11:13:26.620Z"
locale: en
meta:
description: "Niche score 42/100 · £75K/yr market · 116K searches/yr · £6.47 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · £75K/yr market · 116K searches/yr · £6.47 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Water Thermometer — £75K/yr Amazon UK Niche (2026) - Flapen"
---
# **water thermometer**
**Skip it**
A concentrated shelf (top 5 take 79% of clicks) — this niche doesn't clear our bar today.
Market size 19Growth 21Conversion 87Competition 17Returns 97Price range 22Avg price 18Brand share 43Review moat 32Quality gap 70
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.9%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****3,261.2**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Bad****£3.30–£18.37**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-7.2%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£75K**
£75K/yr · 116K searches
**Avg price**
**Bad****£6.47**
avg listing price — sweet spot $15–$100
**Competition**
**Bad****79%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United Kingdom niche tracking, water thermometer is a £75K/yr Amazon United Kingdom market (116K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Jan. Verdict: Skip it — 42/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **water thermometer market data**
- **Units sold / yr**
- **15K–20K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **£97K–£129K**
- units × avg price
- **Conversion rate**
- **9.9%**
- **Avg BSR**
- **#9**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **70%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **41 months**
- **Avg seller age**
- **181 days**
## **Competition & brand share**
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▼falling
**Sellers**
**18**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**79%**
Top 20: 100%
**Open market**
**15%**
- BOMATA47% - YYAOEMI10% - Thermometer World10% - DOQAUS7% - Eidyer6% - Jsdoin5% - Open — no brand owns it (4 brands, 15%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.2% search growth over the last 90 days.
3K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/uk/baby-products/water-thermometer/trend)
## **Top water thermometer search terms**
- **water thermometer**51K/yr-4.7%8.9% conv. - **water temperature thermometer**26K/yr-1.8%6.8% conv. - **waterproof thermometer**6K/yr+34.1%3.6% conv. - **water temperature probe**7K/yr-17.4%6.4% conv. - **thermometer for water temperature**5K/yr+26.4%11.3% conv. - **water thermometer legionella**3K/yr+21.3%7.1% conv. - **thermometer water**4K/yr-25.6%9.4% conv. - **water thermometer digital**8K/yr-60.1%5.4% conv. - **thermometer for water**4K/yr-38.3%9.8% conv. - **digital water thermometer**3K/yr-5.9%7.6% conv. [**All search terms **](https://flapen.com/research/uk/baby-products/water-thermometer/search-terms)
## **Top water 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.
0%15%£11K30%£22K45%£34K60%£45K1001K10K100K 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**BOMATA Waterproof IPX7 Thermometer for Water Liquid Candle and Cooking. Instant Read Food Thermometer with Long Probe for Cooking Meat BBQ! T101 Black**BOMATA**£6.81**4.5★2,367 rev](https://www.amazon.co.uk/dp/B0CP3WKL7Z) [2**YYAOEMI Digital Kitchen Thermometers with Large LCD Screen Long Probe Thermometer Instant Read Auto Off / Button Accurate Water Temperature Thermometer for Beverage Grill BBQ Food Cooking**YYAOEMI**£4.01**4.2★181 rev](https://www.amazon.co.uk/dp/B0D4TJVTKG) [3**Bath Thermometer - Check Bath Water Temperature with This Easy to Use Bathing Temperature Thermometer**Thermometer World**£3.30**4.2★631 rev](https://www.amazon.co.uk/dp/B01MY98912) [4**DOQAUS Meat Thermometers 3S Instant Read Food Thermometer Accurate Meat Thermometer Probe With Backlight Foldable Long Probe Auto On/Off Cooking Thermometers for Kitchen BBQ Water Milk(Black)**DOQAUS**£5.89**4.5★2,216 rev](https://www.amazon.co.uk/dp/B0D2H1HR4G) [5**Eidyer Digital LCD Thermometer Temperature Monitor with External Waterproof Probe for Refrigerator Aquarium FishTank Water Temperature Thermodetector -Black 4.8cm×2.8cm×1.5cm**Eidyer**£4.30**4.1★1,486 rev](https://www.amazon.co.uk/dp/B07J4T1VQZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**DOQAUS Meat Thermometers 3S Instant Read Food Thermometer Accurate Meat Thermometer Probe With Backlight Foldable Long Probe Auto On/Off Cooking Thermometers for Kitchen BBQ Water Milk(Black)**DOQAUS**£5.89**2,216 rev2y ago](https://www.amazon.co.uk/dp/B0D2H1HR4G) [**YYAOEMI Digital Kitchen Thermometers with Large LCD Screen Long Probe Thermometer Instant Read Auto Off / Button Accurate Water Temperature Thermometer for Beverage Grill BBQ Food Cooking**YYAOEMI**£4.01**181 rev2y ago](https://www.amazon.co.uk/dp/B0D4TJVTKG) [**AQUAVERITY Scoop Bath Thermometer to Measure Water Temperature in Swimming Pool Hot Tub Ice Bath Spa Wild Swimming Easy to Use Water Temperature Thermometer**AQUAVERITY**£6.94**210 rev2y ago](https://www.amazon.co.uk/dp/B0D1GSNV2N) [**BOMATA Waterproof IPX7 Thermometer for Water Liquid Candle and Cooking. Instant Read Food Thermometer with Long Probe for Cooking Meat BBQ! T101 Black**BOMATA**£6.81**2,367 rev2y ago](https://www.amazon.co.uk/dp/B0CP3WKL7Z) [**Jsdoin Meat Thermometer Digital Meat Food Thermometer Instant Read Cooking Thermometer with Probe Tip Cover LCD Screen Perfect for Kitchen Cooking BBQ Water Meat Milk(Battery Included)**Jsdoin**£3.77**2,157 rev6y ago](https://www.amazon.co.uk/dp/B08CB1R4TJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**DOQAUS Meat Thermometers 3S Instant Read Food Thermometer Accurate Meat Thermometer Probe With Backlight Foldable Long Probe Auto On/Off Cooking Thermometers for Kitchen BBQ Water Milk(Black)**DOQAUS**£5.89**4.5★**▲ 71%**](https://www.amazon.co.uk/dp/B0D2H1HR4G) [**Extech 39240 Waterproof Stem Type Thermometer**Extech**£18.37**4.5★**▲ 32%**](https://www.amazon.co.uk/dp/B0012W0FJ6) [**Bath Thermometer - Check Bath Water Temperature with This Easy to Use Bathing Temperature Thermometer**Thermometer World**£3.30**4.2★**▲ 25%**](https://www.amazon.co.uk/dp/B01MY98912) [**Eidyer Digital LCD Thermometer Temperature Monitor with External Waterproof Probe for Refrigerator Aquarium FishTank Water Temperature Thermodetector -Black 4.8cm×2.8cm×1.5cm**Eidyer**£4.30**4.1★**— 3%**](https://www.amazon.co.uk/dp/B07J4T1VQZ) [**BOMATA Waterproof IPX7 Thermometer for Water Liquid Candle and Cooking. Instant Read Food Thermometer with Long Probe for Cooking Meat BBQ! T101 Black**BOMATA**£6.81**4.5★**— 2%**](https://www.amazon.co.uk/dp/B0CP3WKL7Z)
**~~View all trending →~~**
## **What buyers say about water thermometer**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**16%
*“good value for money”*
**Quality-Overall**16%
*“Excellent product”*
**Ease Of Use**14%
*“Easy to use”*
**Advertised Vs Actual Product**12%
*“Works as it should”*
**Efficiency**9%
*“It does the job”*
**Temperature Control**6%
*“The temperature was correct”*
**Battery Life**3%
*“Good battery life”*
**Ease Of Cleaning**3%
*“cleans well”*
**Functionality-Overall**3%
*“It does a job”*
**Measurement/Reading Accuracy**2%
*“I think it was fairly accurate”*
### **What buyers complain about **
**Durability**33%
*“Breaks easily”*
**Functionality-Overall**16%
*“Failed to work”*
**Quality-Overall**10%
*“Feels cheap, looks cheap, at least it was cheap”*
**Battery Life**8%
*“Only had 2 months and despite changing the battery it is showing the incorrect temperature”*
**Value For Money**7%
*“Cheap”*
**Heating**6%
*“Really bad thermometer”*
**Water Resistance**3%
*“not waterproof”*
**Display-Overall**3%
*“No screen display”*
**Temperature Control**2%
*“Lasted just over a year before over-reading the temperature by about 35c”*
**Strength**1%
*“the plastic is brittle”*
### **Top return reasons **
**Functionality-Overall**44%
**Durability**10%
**Defective Material/Parts**8%
**Heating**7%
**Battery Life**6%
**Display-Overall**6%
**Water Resistance**3%
**Quality-Overall**3%
**Measurement/Reading Accuracy**3%
**Value For Money**2%
## **Common questions**
- **Is water thermometer profitable to sell on Amazon United Kingdom?**
- The niche generates £75K/yr across 10 tracked products. 90-day search growth is -7.2%. Flapen's verdict: Skip it (42/100).
- **How competitive is the water thermometer niche?**
- 10 brands and 18 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in water thermometer?**
- Top complaints mined from reviews: Durability, Functionality-Overall, Quality-Overall. The return rate is 0.5%.
- **When does demand for water thermometer peak?**
- Demand peaks in Jan; the busiest month runs 1.5× the quietest.
- **What does it cost to enter the water thermometer niche?**
- Listings span £3.30–£18.37; the average listing price is £6.47 (sweet spot $15–$100). The average incumbent carries 3,261 reviews — the moat a new listing must climb.
## **Related niches in Baby Products**
- 63 [**baby toys**](https://flapen.com/research/uk/baby-products/baby-toys)£1.5M/yr+4.3%**Launch it**- 63 [**buggy fan**](https://flapen.com/research/uk/baby-products/buggy-fan)£133K/yr>1,000%**Worth a look**- 63 [**car seat travel bag**](https://flapen.com/research/uk/baby-products/car-seat-travel-bag)£184K/yr+80.2%**Worth a look**- 63 [**retractable stair gate**](https://flapen.com/research/uk/baby-products/retractable-stair-gate)£469K/yr+11.0%**Worth a look**- 63 [**christening gifts for girls**](https://flapen.com/research/uk/baby-products/christening-gifts-for-girls)£323K/yr+34.9%**Worth a look**- 64 [**playpen**](https://flapen.com/research/uk/baby-products/playpen)£963K/yr+15.6%**Launch it**[**All Baby Products niches **](https://flapen.com/research/uk/baby-products)