4 lb dumbbells set of 2
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.5%return rate — above 6% kills the launch gate
Conversion
Great9.5%search→purchase rate — share of searches ending in a sale
Avg price
Good$12.17avg listing price — sweet spot $15–$100
Market size
Okay$172K$172K/yr · 149K searches
Price range
Bad$9.64–$16.09cheapest 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
Bad4.8★avg incumbent rating — lower means beatable quality
Competition
Bad90%top-5 click share — a locked-up shelf
Review moat
Bad39,311.38avg incumbent reviews — the moat a new listing must climb
Brand share
Bad100%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
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.Peak months: Apr · busiest ÷ quietest = 1.9×
Top 4 lb dumbbells set of 2 search terms
- 4 lb weights26K/yr
- 4lb dumbbells set of 223K/yr
- 4 pound weights22K/yr
- 4 lb weights for women set of 218K/yr
- 4 pound dumbbells set of 214K/yr
- 4lb weights13K/yr
- 4 pound dumbbells6K/yr
- 4 lb dumbbells set of 210K/yr
- 4lb weights set of 23K/yr
- 4 lb dumbbells6K/yr
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.
All 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$13.084.8★869 rev
Amazon Basics Neoprene Dumbbell Hand Weights for Workout and Exercise Hexagon Shape 4 Pounds Pair Blue
Amazon Basics$11.484.8★128,216 rev
Amazon Basics Neoprene Dumbbell Hand Weights Easy to Grip 3 Pounds Purple Pair
Amazon Basics$9.644.8★128,216 rev
CAP Barbell 4 LB Neoprene Dumbbell Hand Weights - Pair | Black
CAP$10.824.8★3,112 rev
Yes4All 3 lbs Dumbbells Neoprene with Non Slip Grip Great for Total Body Workout Total Weight: 6 lbs (Set of 2)
Yes4All$11.644.8★1,361 rev
Newest
by launch dateCAP Barbell 4 LB Neoprene Dumbbell Hand Weights - Pair | Black
CAP$10.823,112 rev
Marcy Neoprene Dumbbell Single Piece 4-lb Forest Green
MARCY$9.65248 rev
Portzon Weights Dumbbells 10 Colors Options Compatible with Set of 2 Neoprene Dumbbells Set 1-15 LB Anti-Slip Anti-roll Hex Shape
Portzon$14.9422,766 rev
Amazon Basics Vinyl Coated Hexagon Dumbbell Hand Weights Non-Slip Grip 4 lb Pink Set of 2
Amazon Basics$16.0929,703 rev
Amazon Basics Neoprene Dumbbell Hand Weights Easy to Grip 3 Pounds Purple Pair
Amazon Basics$9.64128,216 rev
Trending
90-day click momentumYes4All 3 lbs Dumbbells Neoprene with Non Slip Grip Great for Total Body Workout Total Weight: 6 lbs (Set of 2)
Yes4All$11.644.8★
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$13.084.8★
Amazon Basics Neoprene Dumbbell Hand Weights Easy to Grip 3 Pounds Purple Pair
Amazon Basics$9.644.8★
Portzon Weights Dumbbells 10 Colors Options Compatible with Set of 2 Neoprene Dumbbells Set 1-15 LB Anti-Slip Anti-roll Hex Shape
Portzon$14.944.8★
Amazon Basics Vinyl Coated Hexagon Dumbbell Hand Weights Non-Slip Grip 4 lb Pink Set of 2
Amazon Basics$16.094.8★
What buyers say about 4 lb dumbbells set of 2
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent Quality”
“As advertised”
“reasonable price”
“Easy Grip & Hold”
“Lightweight”
“Nice size”
“comfortable”
“Like the color”
“Very good helps in exercise mode”
“Easy to use”
What buyers complain about
“I do find the grip to be slightly smaller than other dumbbells I have”
“Dumbells arrived obviously used”
“too heavy for me”
“and price”
“left a sticky residue that removed the finish on my table”
“these are not accurate weights”
“Handle shape does not prevent rolling”
“Poor quality”
“Covering is cut, cracked”
“The dumbells had stains and were obviously used”
Top return reasons
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.