Is bath thermometer profitable to sell on Amazon United Kingdom?

The niche generates £402K/yr across 9 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -21.0%. Flapen's verdict: Skip it (44/100).

How competitive is the bath thermometer niche?

8 brands and 69 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in bath thermometer?

Top complaints mined from reviews: Durability, Functionality-Overall, Battery Life. The return rate is 0.9%.

When does demand for bath thermometer peak?

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

What does it cost to enter the bath thermometer niche?

Listings span £3.35–£17.70; the average listing price is £8.07 (sweet spot $15–$100). The average incumbent carries 5,062 reviews — the moat a new listing must climb.

bath thermometer

Skip it

A concentrated shelf (top 5 take 88% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Conversion

Great10.2%

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

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Market size

Good£402K

£402K/yr · 488K searches

Review moat

Bad5,062.22

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad91%

top-5 brand share — brand-locked demand

Avg price

Bad£8.07

avg listing price — sweet spot $15–$100

Price range

Bad£3.35–£17.70

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

Growth

Bad-21.0%

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

Competition

Bad88%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United Kingdom niche tracking, bath thermometer is a £402K/yr Amazon United Kingdom market (488K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Jan. Verdict: Skip it — 44/100.

Data updated Jul 18, 2026 · scored weekly · How we score niches

bath thermometer market data

Units sold / yr: 50K–60K; avg 5,000–6,000/product
Revenue / yr: £404K–£484K; units × avg price
Conversion rate: 10.2%
Avg BSR: #5
Page quality: 0%
Prime: 100%
Sponsored: 78%
Out of stock: 3.1%
Avg brand age: 44 months
Avg seller age: 170 days

Competition & brand share

The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 rising

Sellers

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

88%

Top 20: 100%

Open market

Nuby42%
TensCare21%
Babyono15%
PHILIPS8%
Tommee Tippee6%
DARLEEYO3%
Open — no brand owns it (2 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -21.0% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.5×

Open Trend

Top bath thermometer search terms

bath thermometer179K/yr -16.8%8.9% conv.
baby bath thermometer166K/yr -15.8%8.5% conv.
bath thermometer digital baby39K/yr -31.9%9.7% conv.
bath temperature thermometer13K/yr -12.4%9.7% conv.
bath thermometer baby10K/yr -6.2%8.4% conv.
nuby bath thermometer11K/yr -7.1%11.7% conv.
bath thermometer digital7K/yr +29.5%10.9% conv.
water thermometer baby bath9K/yr -34.8%9.2% conv.
baby bath thermometer newborn10K/yr -45.0%8.3% conv.
baby thermometer bath11K/yr -52.9%7.8% conv.

All search terms

Top bath 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 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Nuby Penguin Baby Bath Thermometer - Digital Thermometer with Easy to Read Screen | BPA Free | Suitable from Birth (Grey)

Nuby£8.184.1★2,791 rev

TensCare Digi Duckling Digital Water LCD Thermometer and Baby Bath Time Toy yellow Pack of 1

TensCare£5.604.1★8,942 rev

BabyOne Giraffe Baby Safe Floating Bath Thermometer Analog

Babyono£3.354.7★12,258 rev

Philips Avent Digital Thermometer (Model SCH480/00)

PHILIPS£17.704.6★13,461 rev

Tommee Tippee InBath Digital Thermometer Suitable for Bathing and their Nursery Waterproof and Floats in Water Easy to Read LCD Display

Tommee Tippee£9.904.1★4,947 rev

Newest

by launch date

INRIGOROUS Floating Boat Bath Thermometer for Babies & Kids - LCD Digital Display Easy to Read Water Temperature Fun Bath Toy Cute Floating Boat Shape

INRIGOROUS£6.4613 rev

11mo ago

Nuby Hippo Baby Bath Thermometer - Digital Thermometer with Easy to Read Screen | BPA Free | Bath & Room Thermometer | Suitable from Birth (Blue)

Nuby£8.762,791 rev

1y ago

Floating Baby Bath Thermometer Digital - Waterproof Led Display Baby Essentials for New born Baby Shower Nursery Products Bathing Water Temperature Monitor for Kids Children Infant Toddlers Newborns

DARLEEYO£7.2173 rev

1y ago

Reliance Medical Duck Bath Thermometer - Waterproof Color-Coded Display Quick-Read Energy Saving Auto Off Educational Temperature Toy Child-Safe Ideal for Babies & Toddlers

Reliance Medical£5.50284 rev

2y ago

Nuby Penguin Baby Bath Thermometer - Digital Thermometer with Easy to Read Screen | BPA Free | Suitable from Birth (Grey)

Nuby£8.182,791 rev

4y ago

What buyers say about bath thermometer

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

What buyers love

Temperature Control19%

“Correct temperature range clearly marked”

Ease Of Use15%

“easy to use”

Quality-Overall12%

“Cute product”

Value For Money10%

“Good value for money”

Durability6%

“durable”

Water Resistance5%

“I love that its waterproof”

Design-Overall5%

“The cute design keeps babies engaged”

Efficiency5%

“Works perfectly”

Battery Life2%

“Handy, small enough, accurate and battery lasted 6 months so far”

Adhesion/Stickiness2%

“I assume if the glue was done properly this wouldn't be an issue”

What buyers complain about

Durability37%

“Breaks easily”

Functionality-Overall21%

“already not working properly”

Battery Life9%

“the button battery fell out”

Temperature Control5%

“the temperature is way off”

Quality-Overall5%

“Bad quality”

Water Resistance5%

“Clearly not waterproof”

Value For Money4%

“waste of money”

Measurement/Reading Accuracy2%

“Faulty reading”

Design-Overall2%

“Terrible twist design to open it”

Display-Overall1%

“display then goes off”

Top return reasons

Functionality-Overall40%

Defective Material/Parts13%

Durability9%

Temperature Control7%

Measurement/Reading Accuracy6%

Water Resistance4%

Heating4%

Battery Life3%

Display-Overall3%

Product Condition2%

Common questions

Is bath thermometer profitable to sell on Amazon United Kingdom?: The niche generates £402K/yr across 9 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -21.0%. Flapen's verdict: Skip it (44/100).
How competitive is the bath thermometer niche?: 8 brands and 69 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in bath thermometer?: Top complaints mined from reviews: Durability, Functionality-Overall, Battery Life. The return rate is 0.9%.
When does demand for bath thermometer peak?: Demand peaks in Jan; the busiest month runs 1.5× the quietest.
What does it cost to enter the bath thermometer niche?: Listings span £3.35–£17.70; the average listing price is £8.07 (sweet spot $15–$100). The average incumbent carries 5,062 reviews — the moat a new listing must climb.