---
title: "500ml Water Bottle — $71K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/500ml-water-bottle"
last_updated: "2026-08-06T14:51:42.744Z"
locale: en
meta:
description: "Niche score 46/100 · $71K/yr market · 119K searches/yr · $21.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $71K/yr market · 119K searches/yr · $21.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "500ml Water Bottle — $71K/yr Amazon US Niche (2026) - Flapen"
---
# **500ml water bottle**
**Skip it**
Brand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.
Market size 18Growth 45Conversion 35Competition 77Returns 54Price range 84Avg price 91Brand share 14Review moat 37Quality gap 45
**Avg price**
**Great****$21.54**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$7.95–$58.75**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Great****38%**
top-5 click share — an open shelf
**Returns**
**Good****2.9%**
return rate — above 5% kills the launch gate
**Growth**
**Okay****+15.8%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,797.32**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****2.8%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$71K**
$71K/yr · 119K searches
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 500ml water bottle is a $71K/yr Amazon United States market (119K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Aug. Verdict: Skip it — 46/100.
Data updated Jul 26, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **500ml water bottle market data**
- **Units sold / yr**
- **3K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$54K–$65K**
- units × avg price
- **Conversion rate**
- **2.8%**
- **Avg BSR**
- **#638**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **60%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **150 days**
## **Competition & brand share**
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.
**Brands**
**13 **▼falling
**Sellers**
**135**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**38%**
Top 20: 82%
**Open market**
**4%**
- Kinto56% - Nalgene34% - WATERSY2% - CamelBak2% - PARACITY1% - Mont-Clair1% - Open — no brand owns it (7 brands, 4%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +15.8% search growth over the last 90 days.
3K2KSpike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/500ml-water-bottle/trend)
## **Top 500ml water bottle search terms**
- **kinto water bottle**47K/yr+17.1%2.1% conv. - **500 ml water bottle**15K/yr+26.1%0.7% conv. - **500ml water bottle**15K/yr+18.2%0.5% conv. - **nalgene kids water bottles**9K/yr+22.9%2.2% conv. - **kids nalgene**6K/yr+28.5%1.8% conv. - **nalgene kids**7K/yr+14.4%1.7% conv. - **water bottle 500ml**5K/yr+14.2%0.5% conv. - **kids nalgene water bottles**6K/yr-18.5%2.9% conv. - **kinto bottle**4K/yr+11.4%1.5% conv. - **nalgene water bottles kids**3K/yr-8.9%1.7% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/500ml-water-bottle/search-terms)
## **Top 500ml 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%3%$2K6%$4K9%$6K12%$9K101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Nalgene Kids Grip-N-Gulp Water Bottles Leak Proof Sippy Cup Durable BPA and BPS Free Dishwasher Safe Reusable 12 Ounces Green**Nalgene**$14.19**4.4★319 rev](https://www.amazon.com/dp/B09LMQ591X) [2**KINTO 21095 Day-off Tumbler 16.9 fl oz (500 ml) Khaki Double Wall Vacuum Construction Hot and Cold Insulation Water Bottle**Kinto**$40.92**4.6★1,038 rev](https://www.amazon.com/dp/B07G4YG54R) [3**KINTO 20397 Water Bottle 33.4 fl oz (950 ml) Clear Lightweight Dishwasher Safe My Bottle**Kinto**$28.43**4.5★600 rev](https://www.amazon.com/dp/B0B7QVNF7L) [4**KINTO 20405 Water Bottle 16.9 fl oz (500 ml) Green Lightweight Dishwasher Safe My Bottle**Kinto**$26.27**4.5★600 rev](https://www.amazon.com/dp/B0C689HGXY) [5**KINTO 21091 Day-off Tumbler 16.9 fl oz (500 ml) White Double Wall Vacuum Construction Hot and Cold Insulation Water Bottle**Kinto**$36.98**4.6★1,038 rev](https://www.amazon.com/dp/B07G4YXMNK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Mont-Clair Stainless Steel Water Bottle Vacuum insulated - BPA Free 12h Hot & 24h Cold Drinks Metal Water Bottle 500ml Leakproof Ideal for Adult Kids Running - Black**Mont-Clair**$7.95**3,634 rev1y ago](https://www.amazon.com/dp/B0CYSTYSHH) [**KINTO 20214 Trail Tumbler 16.9 fl oz (580 ml) Black Double Wall Vacuum Construction Thermal and Cold Retention**Kinto**$52.27**85 rev2y ago](https://www.amazon.com/dp/B0C689CB8R) [**WATERSY Stainless Steel water bottles 17oz/500ml Insulated Water Bottles Deep Blue metal water bottle Keeps Drink Cold and Hot BPA Free kids water bottles for School Gym Travel Sports**WATERSY**$8.13**1,463 rev2y ago](https://www.amazon.com/dp/B0CQZJPPKM) [**KINTO 20405 Water Bottle 16.9 fl oz (500 ml) Green Lightweight Dishwasher Safe My Bottle**Kinto**$26.27**600 rev3y ago](https://www.amazon.com/dp/B0C689HGXY) [**PARACITY Insulated Water Bottle 15 oz Stainless Steel Water Bottles Double Wall Vacuum for Hot Drinks Metal Water Bottle Keeps Hot for 12 Hrs Cold for 24 Hrs for Coffee Tea**PARACITY**$8.57**1,269 rev3y ago](https://www.amazon.com/dp/B0C1BZ14ZQ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Mont-Clair Stainless Steel Water Bottle Vacuum insulated - BPA Free 12h Hot & 24h Cold Drinks Metal Water Bottle 500ml Leakproof Ideal for Adult Kids Running - Black**Mont-Clair**$7.95**4.6★**▲ 250%**](https://www.amazon.com/dp/B0CYSTYSHH) [**Nalgene 16 oz Wide Mouth Water Bottle | Slim Cup Holder Size BPA-Free Durable & Leak Proof Lightweight Travel Bottle Cherry Blossom**Nalgene**$14.03**4.6★**▲ 162%**](https://www.amazon.com/dp/B0BMRZGGK6) [**KINTO 20073 Togo Bottle 16.9 fl oz (480 ml) Light Blue Includes Straw Lightweight Water Bottle Dishwasher Safe Double Wall Construction**Kinto**$34.67**4.2★**▲ 74%**](https://www.amazon.com/dp/B08DCXDLPC) [**KINTO 20381 Water Bottle 10.1 fl oz (300 ml) Clear Lightweight Dishwasher Safe My Bottle**Kinto**$20.93**4.3★**▲ 67%**](https://www.amazon.com/dp/B08HVCYR7M) [**KINTO 20405 Water Bottle 16.9 fl oz (500 ml) Green Lightweight Dishwasher Safe My Bottle**Kinto**$26.27**4.5★**▲ 57%**](https://www.amazon.com/dp/B0C689HGXY)
**~~View all trending →~~**
## **What buyers say about 500ml water bottle**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**12%
*“Good quality water bottle”*
**Leak-Proof**11%
*“Does not leak”*
**Size-Overall**11%
*“Good size”*
**Ease Of Cleaning**8%
*“Easy to clean”*
**Temperature Retention**8%
*“Keeps my water cold all day”*
**Water Resistance**5%
*“Water tight and good quality”*
**Ease Of Use**5%
*“Great bottle and handy”*
**Design-Overall**5%
*“Cute design”*
**Value For Money**4%
*“Worth the money”*
**Color**4%
*“the color i got was clear”*
### **What buyers complain about **
**Leak-Proof**22%
*“It Leaks”*
**Size-Overall**11%
*“don't fit in car”*
**Ease Of Use**8%
*“Hard to use”*
**Temperature Retention**5%
*“was surprised when one recipient told me that the bottle did not hold a cold temperature for even a couple of hours”*
**Color**4%
*“Did not receive the color ordered”*
**Heating**4%
*“They arent insulated”*
**Durability**4%
*“bottom cap fell off after moderate use”*
**Quality-Overall**4%
*“Definitely below expectations for the price and the brand”*
**Rusts/Corrodes**4%
*“Rusts on the inside”*
**Ease Of Cleaning**4%
*“Cannot seem to put the straw back after cleaning”*
### **Top return reasons **
**Size-Overall**59%
**Leak-Proof**8%
**Advertised Vs Actual Product**5%
**Color**4%
**Material Quality**3%
**Value For Money**3%
**Functionality-Overall**2%
**Weight Heavy**2%
**Product Condition**2%
**Ease Of Use**1%
## **Common questions**
- **Is 500ml water bottle profitable to sell on Amazon United States?**
- The niche generates $71K/yr across 47 tracked products. 90-day search growth is +15.8%. Flapen's verdict: Skip it (46/100).
- **How competitive is the 500ml water bottle niche?**
- 13 brands and 135 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in 500ml water bottle?**
- Top complaints mined from reviews: Leak-Proof, Size-Overall, Ease Of Use. The return rate is 2.9%.
- **When does demand for 500ml water bottle peak?**
- Demand peaks in Aug; the busiest month runs 1.5× the quietest.
- **What does it cost to enter the 500ml water bottle niche?**
- Listings span $7.95–$58.75; the average listing price is $21.54 (sweet spot $15–$100). The average incumbent carries 2,797 reviews — the moat a new listing must climb.
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