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56

16 ounce water bottle

Worth a look

Shows a fragmented shelf (top 5 take 21% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 22Growth 42Conversion 26Competition 94Returns 82Price range 61Avg price 79Brand share 89Review moat 21Quality gap 40

Competition

Great21%

top-5 click share — an open shelf

Brand share

Great46%

top-5 brand share — no brand owns this niche

Returns

Great1.6%

return rate — above 5% kills the launch gate

Avg price

Great$16.65

avg listing price — sweet spot $15–$100

Price range

Good$3.71–$32.69

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

Growth

Okay+13.7%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Conversion

Okay2.1%

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

Market size

Bad$89K

$89K/yr · 261K searches

Review moat

Bad11,876.22

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, 16 ounce water bottle is a $89K/yr Amazon United States market (261K searches/yr). The top 5 brands hold 46% of demand. Demand peaks in Aug. Verdict: Worth a look — 56/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

16 ounce water bottle market data

Units sold / yr
6K–8K
avg 0–100/product
Revenue / yr
$100K–$133K
units × avg price
Conversion rate
2.1%
Avg BSR
#229
Page quality
0%
Prime
99%
Sponsored
90%
Out of stock
1.9%
Avg brand age
46 months
Avg seller age
156 days

Competition & brand share

Clicks spread well past the top 5 (21% combined) — an open shelf where new products get seen.

Brands

59 falling

Sellers

229

Top-5 brand share

46%

Top 20: 80%

Top-5 click share

21%

Top 20: 47%

Open market

49%

  • Copco20%
  • Owala10%
  • Exllena6%
  • POWCAN5%
  • WATERSY5%
  • BEAUTAIL4%

Demand & seasonality

Weekly Amazon search volume, last 76 weeks — +13.7% search growth over the last 90 days.
7K5KSpike '25Prime Day '25Spike '26MarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Aug · busiest ÷ quietest = 1.8×

Top 16 ounce water bottle search terms

  • slim water bottle for travel38K/yr
  • reusable water bottle for travel27K/yr
  • cruise water bottle18K/yr
  • water bottle set22K/yr
  • 16.9 oz reusable water bottle19K/yr
  • copco water bottles20K/yr
  • 17 oz water bottle19K/yr
  • 500 ml water bottle15K/yr
  • 500ml water bottle15K/yr
  • refillable water bottles for travel11K/yr
All search terms

Top 16 ounce water bottle 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%2%$2K4%$4K6%$5K8%$7K101001K10K100K1.0M 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 16 ounce water bottle

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

What buyers love

Quality-Overall14%

“Nice and good quality bottle”

Size-Overall10%

“Love the size”

Leak-Proof7%

“It is leak proof”

Temperature Retention7%

“Keeps things cold”

Value For Money7%

“Good buy for the money”

Ease Of Use6%

“Easy to carry”

Color5%

“Vibrant colors”

Ease Of Cleaning4%

“Easy to wash”

Durability4%

“Very durable item”

Advertised Vs Actual Product4%

“As described”

What buyers complain about

Leak-Proof18%

“NOT Leakproof”

Durability10%

“Broke within a week”

Size-Overall7%

“It's very narrow”

Quality-Overall5%

“Bad quality”

Ease Of Use4%

“Difficult to close”

Smell4%

“smells like urine”

Value For Money3%

“Price is high”

Ease Of Cleaning2%

“The seal is hard to clean”

Strength2%

“Very weak”

Temperature Retention2%

“No temperature retention”

Top return reasons

Size-Overall40%
Color12%
Leak-Proof10%
Value For Money6%
Advertised Vs Actual Product4%
Functionality-Overall3%
Weight Heavy3%
Smell2%
Product Condition2%
Material Quality2%

Common questions

Is 16 ounce water bottle profitable to sell on Amazon United States?
The niche generates $89K/yr across 125 tracked products. 14 of 16 products launched in the last 360 days are still selling. 90-day search growth is +13.7%. Flapen's verdict: Worth a look (56/100).
How competitive is the 16 ounce water bottle niche?
59 brands and 229 sellers compete. The top 5 products take 21% of clicks and top 5 brands hold 46% of demand.
What do buyers complain about in 16 ounce water bottle?
Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 1.6%.
When does demand for 16 ounce water bottle peak?
Demand peaks in Aug; the busiest month runs 1.8× the quietest.
What does it cost to enter the 16 ounce water bottle niche?
Listings span $3.71–$32.69; the average listing price is $16.65 (sweet spot $15–$100). The average incumbent carries 11,876 reviews — the moat a new listing must climb.