Is flybird adjustable dumbbells profitable to sell on Amazon United States?

The niche generates $16K/yr across 17 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is +10.2%. Flapen's verdict: Skip it (30/100).

How competitive is the flybird adjustable dumbbells niche?

12 brands and 16 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 90% of demand.

What do buyers complain about in flybird adjustable dumbbells?

Top complaints mined from reviews: Quality-Overall, Durability, Value For Money. The return rate is 1.7%.

When does demand for flybird adjustable dumbbells peak?

Demand peaks in Dec; the busiest month runs 2.2× the quietest.

What does it cost to enter the flybird adjustable dumbbells niche?

Listings span $60.05–$583.95; the average listing price is $197.90 (sweet spot $15–$100). The average incumbent carries 1,035 reviews — the moat a new listing must climb.

flybird adjustable dumbbells

Skip it

A small market ($16K/yr) — this niche doesn't clear our bar today.

Returns

Great1.7%

return rate — above 6% kills the launch gate

Review moat

Good1,035.47

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay$197.90

avg listing price — sweet spot $15–$100

Growth

Okay+10.2%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Brand share

Okay90%

top-5 brand share — brands hold most of the demand

Competition

Bad72%

top-5 click share — a locked-up shelf

Price range

Bad$60.05–$583.95

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

Conversion

Bad0.4%

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

Market size

Bad$16K

$16K/yr · 18K searches

According to Flapen's Amazon United States niche tracking, flybird adjustable dumbbells is a $16K/yr Amazon United States market (18K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Dec. Verdict: Skip it — 30/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

flybird adjustable dumbbells market data

Units sold / yr: 100–250; avg 0–100/product
Revenue / yr: $20K–$49K; units × avg price
Launch success: 80%; 4 of 5 new (360d)
Conversion rate: 0.4%
Avg BSR: #200
Page quality: 0%
Prime: 59%
Sponsored: 82%
Out of stock: 8.8%
Avg brand age: 31 months
Avg seller age: 213 days

Competition & brand share

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.

Brands

12 falling

Sellers

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

72%

Top 20: 100%

Open market

FLYBIRD45%
NÜOBELL20%
ALTLER13%
CAP Barbell9%
LifeOG3%
Yes4All3%
Open — no brand owns it (6 brands, 8%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +10.2% search growth over the last 90 days.

Peak months: Dec · busiest ÷ quietest = 2.2×

Open Trend

Top flybird adjustable dumbbells search terms

flybird adjustable dumbbells13K/yr +27.4%0.8% conv.
flybird adjustable dumbbell5K/yr -36.6%0.6% conv.
flybird dumbbells1K/yr -19.3%0.0% conv.

All search terms

Top flybird adjustable dumbbells 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

NOBELL Adjustable Dumbbell Set for Home 5-50 LB Twist Lock 2024-25 Model Classic Silver 2 x 50 lb ea Dumbbell (Pair)

NÜOBELL$583.954.7★105 rev

FLYBIRD DB2 Adjustable Dumbbell Set of 2 55LB Pair 5-in-1 Quick Adjustable Weights with Storage Box and Non-Slip Handle Weight Set for Home Gym Exercise Fitness Full Body Workout for Men & Women

FLYBIRD$292.684.8★88 rev

FLYBIRD DB2 Adjustable Dumbbell 55LB Single 5-in-1 Quick Adjustable Weights with Storage Box and Non-Slip Handle Weight Set for Home Gym Exercise Fitness Full Body Workout for Men & Women

FLYBIRD$181.584.8★88 rev

FLYBIRD Adjustable Dumbbell Set of 2 25LB x 2 Men/Women

FLYBIRD$183.054.8★239 rev

ALTLER Adjustable Dumbbell Set 52LB Pair with Tray for Workout Strength Training Fitness Adjustable Weight Dial Dumbbell with Anti-Slip Handle and Weight Plate for Home Exercise

ALTLER$187.834.4★36 rev

Newest

by launch date

ALTLER Adjustable Dumbbell Set 52LB Pair with Tray for Workout Strength Training Fitness Adjustable Weight Dial Dumbbell with Anti-Slip Handle and Weight Plate for Home Exercise

ALTLER$187.8336 rev

3mo ago

ALTLER Adjustable Dumbbell Set 25LB Pair with Tray for Workout Strength Training Fitness Adjustable Weight Dial Dumbbell with Anti-Slip Handle and Weight Plate for Home Exercise

ALTLER$115.8236 rev

3mo ago

FLYBIRD Adjustable Dumbbell Set of 2 110LB/55LB for Men/Women

FLYBIRD$357.18239 rev

9mo ago

BowFlex Results Series 552 SelectTech Dumbbells (Pair)

Bowflex$373.63181 rev

10mo ago

FLYBIRD DB2 Adjustable Dumbbell 55LB Single 5-in-1 Quick Adjustable Weights with Storage Box and Non-Slip Handle Weight Set for Home Gym Exercise Fitness Full Body Workout for Men & Women

FLYBIRD$181.5888 rev

11mo ago

What buyers say about flybird adjustable dumbbells

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

What buyers love

Quality-Overall21%

“Product is well made”

Ease Of Use14%

“Easy to operate”

Value For Money11%

“Worth buying”

Adjustability/Rotatability/Reclining8%

“Easy to adjust”

Exercise/Sports Suitability5%

“great for daily workouts”

Advertised Vs Actual Product5%

“As expected”

Storage Capacity4%

“great for saving space”

Grip3%

“The grip is comfortable”

Durability3%

“Durable design”

Design-Overall2%

“clean design”

What buyers complain about

Quality-Overall17%

“Bad quality”

Durability14%

“Broke after a couple uses”

Value For Money5%

“They may be a little more expensive than other brands”

Weight Heavy5%

“Heavy”

Advertised Vs Actual Product5%

“Not as advertised”

Ease Of Use4%

“Slightly difficult to use”

Adjustability/Rotatability/Reclining4%

“The biggest issue is that the adjustment mechanism constantly gets stuck”

Size-Overall3%

“The dumbbells are also VERY large”

Strength2%

“they can fall apart later”

Grip2%

“I don't feel like they are as grippy”

Top return reasons

Weight Heavy16%

Size-Overall12%

Advertised Vs Actual Product10%

Adjustability/Rotatability/Reclining10%

Defective Material/Parts10%