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58

gravity bong

Worth a look

Shows beatable incumbent ratings (3.9★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 21Growth 22Conversion 7Competition 82Returns 96Price range 76Avg price 91Brand share 87Review moat 45Quality gap 96

Quality gap

Incredible3.9★

avg incumbent rating — lower means beatable quality

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Avg price

Great$21.29

avg listing price — sweet spot $15–$100

Brand share

Great49%

top-5 brand share — no brand owns this niche

Competition

Great33%

top-5 click share — an open shelf

Price range

Great$4.12–$49.66

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

Review moat

Okay1,991.46

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-6.2%

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

Market size

Bad$84K

$84K/yr · 680K searches

Conversion

Bad0.6%

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

According to Flapen's Amazon United States niche tracking, gravity bong is a $84K/yr Amazon United States market (680K searches/yr). The top 5 brands hold 49% of demand. Demand peaks in Dec. Verdict: Worth a look — 58/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

gravity bong market data

Units sold / yr
4K–5K
avg 0–100/product
Revenue / yr
$85K–$106K
units × avg price
Conversion rate
0.6%
Avg BSR
#511
Page quality
0%
Prime
73%
Sponsored
27%
Out of stock
9.8%
Avg brand age
42 months
Avg seller age
166 days

Competition & brand share

Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.

Brands

33 flat

Sellers

84

Top-5 brand share

49%

Top 20: 86%

Top-5 click share

33%

Top 20: 65%

Open market

48%

  • Generic15%
  • ION Graphics10%
  • Made in the Andes9%
  • KhyoDuk8%
  • ShowJade6%
  • HOOWA4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -6.2% search growth over the last 90 days.
25K15KSpike '25SepDecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 2.1×

Top gravity bong search terms

  • bongsmoke weed glass75K/yr
  • bongsmoke weed water pipe45K/yr
  • bongsmoke weed water smoking pipe185K/yr
  • silicone bong61K/yr
  • water bongsmoke weed32K/yr
  • bongsmoke weed pipe24K/yr
  • glass waterpipes36K/yr
  • weed bongsfor smoking marijuana23K/yr
  • bongsmoke weed glass pipe23K/yr
  • waterpipe30K/yr
All search terms

Top gravity bong 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%$3K6%$5K9%$8K12%$10K1101001K10K100K 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 gravity bong

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

What buyers love

Quality-Overall15%

“Excellent product”

Advertised Vs Actual Product13%

“Worked exactly as advertised”

Value For Money11%

“Fair price”

Ease Of Cleaning7%

“easy to clean”

Size-Overall6%

“Perfect fit”

Ease Of Use5%

“easy to operate”

Efficiency5%

“seems to be effective”

Smell5%

“Smells great”

Durability4%

“Effective for years”

Display-Overall3%

“Lots of fresh screens”

What buyers complain about

Functionality-Overall15%

“Not effective”

Size-Overall13%

“To small”

Ease Of Cleaning11%

“Does not clean well”

Quality-Overall7%

“Quality control issue”

Value For Money5%

“Waste of money”

Durability5%

“Broken twice”

Jamming/Clogging4%

“Clogs very easily”

Smell4%

“not completely smell proof”

Advertised Vs Actual Product3%

“Not as described”

Leak-Proof3%

“LEAK”

Top return reasons

Size-Overall43%
Functionality-Overall13%
Advertised Vs Actual Product8%
Material Quality4%
Quality-Overall3%
Leak-Proof3%
Smell2%
Zipper Quality2%
Defective Material/Parts2%
Ease Of Use2%

Common questions

Is gravity bong profitable to sell on Amazon United States?
The niche generates $84K/yr across 56 tracked products. 1 of 16 products launched in the last 360 days are still selling. 90-day search growth is -6.2%. Flapen's verdict: Worth a look (58/100).
How competitive is the gravity bong niche?
33 brands and 84 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 49% of demand.
What do buyers complain about in gravity bong?
Top complaints mined from reviews: Functionality-Overall, Size-Overall, Ease Of Cleaning. The return rate is 0.7%.
When does demand for gravity bong peak?
Demand peaks in Dec; the busiest month runs 2.1× the quietest.
What does it cost to enter the gravity bong niche?
Listings span $4.12–$49.66; the average listing price is $21.29 (sweet spot $15–$100). The average incumbent carries 1,991 reviews — the moat a new listing must climb.