Skip to content
46

bento lunch box for kids with thermos

Skip it

A small market ($12K/yr) — this niche doesn't clear our bar today.

Market size 3Growth 57Conversion 9Competition 79Returns 25Price range 95Avg price 95Brand share 64Review moat 23Quality gap 48

Avg price

Incredible$30.44

avg listing price — sweet spot $15–$100

Price range

Incredible$15.51–$57.30

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

Competition

Great36%

top-5 click share — an open shelf

Brand share

Good67%

top-5 brand share — brands hold most of the demand

Growth

Good+31.0%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Returns

Okay5.0%

return rate — above 5% kills the launch gate

Review moat

Bad8,380.16

avg incumbent reviews — the moat a new listing must climb

Conversion

Bad0.7%

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

Market size

Bad$12K

$12K/yr · 57K searches

According to Flapen's Amazon United States niche tracking, bento lunch box for kids with thermos is a $12K/yr Amazon United States market (57K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Jul–Aug–Sep. Verdict: Skip it — 46/100.

Data updated Aug 2, 2026 · scored weekly · How we score niches

bento lunch box for kids with thermos market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
$15K–$23K
units × avg price
Conversion rate
0.7%
Avg BSR
#153
Page quality
0%
Prime
100%
Sponsored
95%
Out of stock
5.9%
Avg brand age
28 months
Avg seller age
142 days

Competition & brand share

Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.

Brands

28 rising

Sellers

48

Top-5 brand share

67%

Top 20: 96%

Top-5 click share

36%

Top 20: 71%

Open market

27%

  • Omie26%
  • Pawtong13%
  • Bentgo11%
  • Howeemo10%
  • HWONMTE7%
  • wiwens6%

Demand & seasonality

Weekly Amazon search volume, last 99 weeks — +31.0% search growth over the last 90 days.
5K3KSpike '25Prime Day '25Spike '26DecMarJunAugNovMarMay

Peak months: Jul, Aug, Sep · busiest ÷ quietest = 10.3×

Top bento lunch box for kids with thermos search terms

  • insulated bento box for kids20K/yr
  • bento box with soup container6K/yr
  • bentgo box with thermos6K/yr
  • bentgo lunch boxes with thermos5K/yr
  • bentgo with thermos5K/yr
  • bento box with thermos for adults7K/yr
  • bento box adult with thermos4K/yr
  • bentgo kids lunch box with thermos2K/yr
  • bento lunch box for kids hot and cold2K/yr
All search terms

Top bento lunch box for kids with thermos 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%3%$3656%$7309%$1K12%$1K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about bento lunch box for kids with thermos

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

What buyers love

Quality-Overall13%

“the overall quality feels solid”

Ease Of Use7%

“Its easy to open”

Durability7%

“Cute and durable”

Leak-Proof7%

“Its leak free”

Size-Overall7%

“EXCELLENT SIZE”

Ease Of Cleaning6%

“Cleanup was straightforward”

Temperature Retention6%

“Keeping it in the fridge keeps everything cold”

Value For Money5%

“Value for money”

Storage Capacity4%

“Great capacity”

Design-Overall4%

“And the design is really cute”

What buyers complain about

Durability16%

“Breaks easily”

Leak-Proof8%

“it tends to leak”

Size-Overall7%

“Too small”

Value For Money6%

“wish it wasn't so expensive”

Temperature Control5%

“Does not keep food hot/warm”

Heating4%

“Thermos doesnt hold heat well”

Quality-Overall4%

“Low Quality Lunchbox”

Weight Heavy3%

“Finally, it is bulky and heavy”

Dishwasher Safe3%

“it popped out in the dishwasher”

Ease Of Cleaning3%

“Arrived dirty”

Top return reasons

Size-Overall41%
Value For Money10%
Weight Heavy9%
Advertised Vs Actual Product5%
Color5%
Ease Of Use4%
Product Condition3%
Leak-Proof3%
Functionality-Overall3%
Material Quality3%

Common questions

Is bento lunch box for kids with thermos profitable to sell on Amazon United States?
The niche generates $12K/yr across 56 tracked products. 3 of 8 products launched in the last 360 days are still selling. 90-day search growth is +31.0%. Flapen's verdict: Skip it (46/100).
How competitive is the bento lunch box for kids with thermos niche?
28 brands and 48 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 67% of demand.
What do buyers complain about in bento lunch box for kids with thermos?
Top complaints mined from reviews: Durability, Leak-Proof, Size-Overall. The return rate is 5.0%.
When does demand for bento lunch box for kids with thermos peak?
Demand peaks in Jul–Aug–Sep; the busiest month runs 10.3× the quietest.
What does it cost to enter the bento lunch box for kids with thermos niche?
Listings span $15.51–$57.30; the average listing price is $30.44 (sweet spot $15–$100). The average incumbent carries 8,380 reviews — the moat a new listing must climb.