---
title: "4 Lb Dumbbells Set of 2 — $172K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/4-lb-dumbbells-set-of-2"
last_updated: "2026-07-21T17:19:12.179Z"
locale: en
meta:
description: "Niche score 32/100 · $172K/yr market · 149K searches/yr · $12.17 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 32/100 · $172K/yr market · 149K searches/yr · $12.17 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "4 Lb Dumbbells Set of 2 — $172K/yr Amazon US Niche (2026) - Flapen"
---
# **4 lb dumbbells set of 2**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 35Growth 15Conversion 85Competition 9Returns 97Price range 17Avg price 51Brand share 0Review moat 6Quality gap 14
**Returns**
**Incredible****0.5%**
return rate — above 6% kills the launch gate
**Conversion**
**Great****9.5%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$12.17**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****$172K**
$172K/yr · 149K searches
**Price range**
**Bad****$9.64–$16.09**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-19.8%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.8★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****90%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****39,311.38**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 4 lb dumbbells set of 2 is a $172K/yr Amazon United States market (149K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr. Verdict: Skip it — 32/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **4 lb dumbbells set of 2 market data**
- **Units sold / yr**
- **15K–20K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **$183K–$243K**
- units × avg price
- **Launch success**
- **—**
- 0 of 0 new (360d)
- **Conversion rate**
- **9.5%**
- **Avg BSR**
- **#24**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **88%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**6**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**90%**
Top 20: 100%
**Open market**
**0%**
- Yes4All47% - Amazon Basics40% - CAP6% - MARCY6% - Portzon2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -19.8% search growth over the last 90 days.
5K3KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/4-lb-dumbbells-set-of-2/trend)
## **Top 4 lb dumbbells set of 2 search terms**
- **4 lb weights**26K/yr-2.7%10.5% conv. - **4lb dumbbells set of 2**23K/yr-21.7%9.1% conv. - **4 pound weights**22K/yr-32.3%7.9% conv. - **4 lb weights for women set of 2**18K/yr-3.4%9.8% conv. - **4 pound dumbbells set of 2**14K/yr-40.2%10.7% conv. - **4lb weights**13K/yr-37.1%8.2% conv. - **4 pound dumbbells**6K/yr+66.2%8.8% conv. - **4 lb dumbbells set of 2**10K/yr-35.9%8.6% conv. - **4lb weights set of 2**3K/yr+82.5%9.4% conv. - **4 lb dumbbells**6K/yr-59.2%10.5% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/4-lb-dumbbells-set-of-2/search-terms)
## **Top 4 lb dumbbells set of 2 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%15%$26K30%$52K45%$77K60%$103K1001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Yes4All Neoprene Coated Dumbbell Hand Weight Sets of 2 - Multiple Weight Options with 15 Colors Anti-roll Anti-Slip Hexagon Shape Yellow 4 lb Pair**Yes4All**$13.08**4.8★869 rev](https://www.amazon.com/dp/B00A6MKU7U) [2**Amazon Basics Neoprene Dumbbell Hand Weights for Workout and Exercise Hexagon Shape 4 Pounds Pair Blue**Amazon Basics**$11.48**4.8★128,216 rev](https://www.amazon.com/dp/B01LR5RK0Y) [3**Amazon Basics Neoprene Dumbbell Hand Weights Easy to Grip 3 Pounds Purple Pair**Amazon Basics**$9.64**4.8★128,216 rev](https://www.amazon.com/dp/B01LR5RG08) [4**CAP Barbell 4 LB Neoprene Dumbbell Hand Weights - Pair | Black**CAP**$10.82**4.8★3,112 rev](https://www.amazon.com/dp/B0D3434257) [5**Yes4All 3 lbs Dumbbells Neoprene with Non Slip Grip Great for Total Body Workout Total Weight: 6 lbs (Set of 2)**Yes4All**$11.64**4.8★1,361 rev](https://www.amazon.com/dp/B00A6MKU7K)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**CAP Barbell 4 LB Neoprene Dumbbell Hand Weights - Pair | Black**CAP**$10.82**3,112 rev2y ago](https://www.amazon.com/dp/B0D3434257) [**Marcy Neoprene Dumbbell Single Piece 4-lb Forest Green**MARCY**$9.65**248 rev3y ago](https://www.amazon.com/dp/B0C8KQ3KLV) [**Portzon Weights Dumbbells 10 Colors Options Compatible with Set of 2 Neoprene Dumbbells Set 1-15 LB Anti-Slip Anti-roll Hex Shape**Portzon**$14.94**22,766 rev5y ago](https://www.amazon.com/dp/B089LKL5HV) [**Amazon Basics Vinyl Coated Hexagon Dumbbell Hand Weights Non-Slip Grip 4 lb Pink Set of 2**Amazon Basics**$16.09**29,703 rev7y ago](https://www.amazon.com/dp/B07FNMVB41) [**Amazon Basics Neoprene Dumbbell Hand Weights Easy to Grip 3 Pounds Purple Pair**Amazon Basics**$9.64**128,216 rev7y ago](https://www.amazon.com/dp/B01LR5RG08)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Yes4All 3 lbs Dumbbells Neoprene with Non Slip Grip Great for Total Body Workout Total Weight: 6 lbs (Set of 2)**Yes4All**$11.64**4.8★**▲ 133%**](https://www.amazon.com/dp/B00A6MKU7K) [**Yes4All Neoprene Coated Dumbbell Hand Weight Sets of 2 - Multiple Weight Options with 15 Colors Anti-roll Anti-Slip Hexagon Shape Yellow 4 lb Pair**Yes4All**$13.08**4.8★**▲ 46%**](https://www.amazon.com/dp/B00A6MKU7U) [**Amazon Basics Neoprene Dumbbell Hand Weights Easy to Grip 3 Pounds Purple Pair**Amazon Basics**$9.64**4.8★**— 6%**](https://www.amazon.com/dp/B01LR5RG08) [**Portzon Weights Dumbbells 10 Colors Options Compatible with Set of 2 Neoprene Dumbbells Set 1-15 LB Anti-Slip Anti-roll Hex Shape**Portzon**$14.94**4.8★**▼ 13%**](https://www.amazon.com/dp/B089LKL5HV) [**Amazon Basics Vinyl Coated Hexagon Dumbbell Hand Weights Non-Slip Grip 4 lb Pink Set of 2**Amazon Basics**$16.09**4.8★**▼ 17%**](https://www.amazon.com/dp/B07FNMVB41)
**~~View all trending →~~**
## **What buyers say about 4 lb dumbbells set of 2**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“Excellent Quality”*
**Advertised Vs Actual Product**15%
*“As advertised”*
**Value For Money**11%
*“reasonable price”*
**Grip**9%
*“Easy Grip & Hold”*
**Weight Light**8%
*“Lightweight”*
**Size-Overall**6%
*“Nice size”*
**Comfort-Overall**6%
*“comfortable”*
**Color**6%
*“Like the color”*
**Exercise/Sports Suitability**4%
*“Very good helps in exercise mode”*
**Ease Of Use**3%
*“Easy to use”*
### **What buyers complain about **
**Size-Overall**13%
*“I do find the grip to be slightly smaller than other dumbbells I have”*
**Product Condition**8%
*“Dumbells arrived obviously used”*
**Weight Heavy**7%
*“too heavy for me”*
**Value For Money**5%
*“and price”*
**Adhesion/Stickiness**5%
*“left a sticky residue that removed the finish on my table”*
**Measurement/Reading Accuracy**5%
*“these are not accurate weights”*
**Grip**4%
*“Handle shape does not prevent rolling”*
**Quality-Overall**3%
*“Poor quality”*
**Cover Quality**3%
*“Covering is cut, cracked”*
**Stain Resistance**3%
*“The dumbells had stains and were obviously used”*
### **Top return reasons **
**Weight Heavy**37%
**Value For Money**18%
**Size-Overall**10%
**Weight Light**7%
**Grip**5%
**Advertised Vs Actual Product**5%
**Comfort-Overall**2%
**Product Condition**2%
**Quality-Overall**2%
**Material Quality**2%
## **Common questions**
- **Is 4 lb dumbbells set of 2 profitable to sell on Amazon United States?**
- The niche generates $172K/yr across 8 tracked products. 90-day search growth is -19.8%. Flapen's verdict: Skip it (32/100).
- **How competitive is the 4 lb dumbbells set of 2 niche?**
- 5 brands and 6 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 4 lb dumbbells set of 2?**
- Top complaints mined from reviews: Size-Overall, Product Condition, Weight Heavy. The return rate is 0.5%.
- **When does demand for 4 lb dumbbells set of 2 peak?**
- Demand peaks in Apr; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the 4 lb dumbbells set of 2 niche?**
- Listings span $9.64–$16.09; the average listing price is $12.17 (sweet spot $15–$100). The average incumbent carries 39,311 reviews — the moat a new listing must climb.
## **Related niches in Sports & Outdoors**
- 64 [**swim belt**](https://flapen.com/research/us/sports-outdoors/swim-belt)$291K/yr+177.3%**Worth a look**- 64 [**argentina jersey 2026 world cup**](https://flapen.com/research/us/sports-outdoors/argentina-jersey-2026-world-cup)$82K/yr>1,000%**Worth a look**- 64 [**slingshot**](https://flapen.com/research/us/sports-outdoors/slingshot)$3.5M/yr+36.6%**Launch it**- 64 [**resistance bands for working out**](https://flapen.com/research/us/sports-outdoors/resistance-bands-for-working-out)$20.3M/yr-2.0%**Worth a look**- 65 [**germany soccer jersey**](https://flapen.com/research/us/sports-outdoors/germany-soccer-jersey)$182K/yr>1,000%**Worth a look**- 65 [**swim bar**](https://flapen.com/research/us/sports-outdoors/swim-bar)$34K/yr+304.9%**Worth a look**[**All Sports & Outdoors niches **](https://flapen.com/research/us/sports-outdoors)