core max
Skip itA small market ($0/yr) — this niche doesn't clear our bar today.
Avg price
Great$75.46avg listing price — sweet spot $15–$100
Price range
Good$30.91–$130.11cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Brand share
Good68%top-5 brand share — brands hold most of the demand
Review moat
Okay1,957.58avg incumbent reviews — the moat a new listing must climb
Returns
Okay4.3%return rate — above 6% kills the launch gate
Competition
Bad72%top-5 click share — a locked-up shelf
Growth
Bad-16.9%90-day search growth — must beat 0% to launch
Market size
Bad$0$0/yr · 8K searches
Conversion
Bad0.0%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, core max is a $0/yr Amazon United States market (8K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Feb–Mar–Apr. Verdict: Skip it — 32/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
core max market data
- Units sold / yr
- 0–100
- avg 0–100/product
- Revenue / yr
- $0–$8K
- units × avg price
- Launch success
- —
- 3 of 3 new (360d)
- Conversion rate
- 0.0%
- Avg BSR
- #2,264
- Page quality
- 0%
- Prime
- 83%
- Sponsored
- 83%
- Out of stock
- 13.1%
- Avg brand age
- 38 months
- Avg seller age
- 127 days
Competition & brand share
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.Brands
11 rising
Sellers
19
Top-5 brand share
68%
Top 20: 100%
Top-5 click share
72%
Top 20: 100%
Open market
25%
- ZELUS37%
- WONDER CORE9%
- MERACH8%
- Fitlaya Fitness8%
- YOLEO7%
- PAPIBLU6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -16.9% search growth over the last 90 days.Peak months: Feb, Mar, Apr · busiest ÷ quietest = 2.9×
Top core max search terms
- core max3K/yr
- core max pro ab machine4K/yr
- core max pro1K/yr
Top core max 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 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
ZELUS Weighted Vest 6lb/8lb/12lb/16lb/20lb/25lb/30lb Weight Vest with Reflective Stripe for Workout Strength Training Running Fitness Muscle Building Weight Loss Weightlifting Black(12 lb)
ZELUS$30.914.6★16,665 rev
MERACH Ab Machine Sit Up Exercise Equipment with 3 Adjustable Resistance Levels Automatic Rebound Ab Crunch Machine for Core Workout Ab Workout Equipment for Stomach
MERACH$65.054.5★601 rev
Fitlaya Fitness-abs exercise equipment ab machine for Abs and Total Body Workout home gym fitness equipment for all ages. (BLACK)
Fitlaya Fitness$61.654.4★1,683 rev
Yoleo 2 in 1 Ab & Rowing Machines for Home Foldable Ab Workout Equipment Ab Trainer Machine for Stomach Workout Ab Crunch Machine with Foam Support 7-Length Adjustable Ab Machine for Home Exercise
YOLEO$130.112.9★5 rev
PAPIBLU Ab Machine Ab Trainer - Sit Up Exercise Equipment& Core Machine 4 Level Adjustable Resistance Foldable Ab Crunch Machine for Home Gym Stomach Workouts - Red
PAPIBLU$59.704.9★16 rev
Newest
by launch dateYoleo 2 in 1 Ab & Rowing Machines for Home Foldable Ab Workout Equipment Ab Trainer Machine for Stomach Workout Ab Crunch Machine with Foam Support 7-Length Adjustable Ab Machine for Home Exercise
YOLEO$130.115 rev
PAPIBLU Ab Machine Ab Trainer - Sit Up Exercise Equipment& Core Machine 4 Level Adjustable Resistance Foldable Ab Crunch Machine for Home Gym Stomach Workouts - Red
PAPIBLU$59.7016 rev
Ab Machine Ab Workout Equipment Sit Up Machine & Exercise Equipment Ab Crunch Machine for Stomach Workout Ab Core Trainer Abdominal Machine for Home Gym with Resistance Bands (Red)
MAGIC BB$57.76115 rev
AIRHOP Ab Machine for Home Ab Exercise Equipment for Core Training Foldable Ab Crunch Machine with 4 Adjustable Resistance Sit Up Exercise Equipment 330 LBS Capacity for Beginners & Pros
AIRHOP$69.54377 rev
HOTSWEAT Ab Machine Sit Up Exercise Equipment Ab Workout Equipment with 3 Adjustable Resistance Ab Trainer for Stomach Workout with 330 LBS Weight Capacity Foldable Ab Crunch Machine for Home Gym
HOTSWEAT$50.38162 rev
Trending
90-day click momentumYoleo 2 in 1 Ab & Rowing Machines for Home Foldable Ab Workout Equipment Ab Trainer Machine for Stomach Workout Ab Crunch Machine with Foam Support 7-Length Adjustable Ab Machine for Home Exercise
YOLEO$130.112.9★
ZELUS Weighted Vest 6lb/8lb/12lb/16lb/20lb/25lb/30lb Weight Vest with Reflective Stripe for Workout Strength Training Running Fitness Muscle Building Weight Loss Weightlifting Black(12 lb)
ZELUS$30.914.6★
PAPIBLU Ab Machine Ab Trainer - Sit Up Exercise Equipment& Core Machine 4 Level Adjustable Resistance Foldable Ab Crunch Machine for Home Gym Stomach Workouts - Red
PAPIBLU$59.704.9★
AIRHOP Ab Machine for Home Ab Exercise Equipment for Core Training Foldable Ab Crunch Machine with 4 Adjustable Resistance Sit Up Exercise Equipment 330 LBS Capacity for Beginners & Pros
AIRHOP$69.544.6★
HOTSWEAT Ab Machine Sit Up Exercise Equipment Ab Workout Equipment with 3 Adjustable Resistance Ab Trainer for Stomach Workout with 330 LBS Weight Capacity Foldable Ab Crunch Machine for Home Gym
HOTSWEAT$50.384.5★
What buyers say about core max
What buyers praise and complain about, mined from review topics.What buyers love
“Easy exercise”
“Great quality-exactly as described”
“Fits my phone too”
“Its comfortable for the most part”
“Easy to use”
“lightweight,”
“great price”
“As Advertised”
“durable material”
“Very adjustable and comfortable”
What buyers complain about
“They are not fit”
“It broke within 2 months”
“To heavy for me”
“Vest hurt my back”
“so therefore you cannot use the straps”
“I bought this vest because walking 16,000 steps a day apparently wasnt making me sweat enough”
“Very strong chemical smell that does not fade over time”
“Not well made”
“Kinda disappointed in advertisement”
“the beads inside are spilling”
Top return reasons
Common questions
- Is core max profitable to sell on Amazon United States?
- The niche generates $0/yr across 12 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -16.9%. Flapen's verdict: Skip it (32/100).
- How competitive is the core max niche?
- 11 brands and 19 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 68% of demand.
- What do buyers complain about in core max?
- Top complaints mined from reviews: Size-Overall, Durability, Weight Heavy. The return rate is 4.3%.
- When does demand for core max peak?
- Demand peaks in Feb–Mar–Apr; the busiest month runs 2.9× the quietest.
- What does it cost to enter the core max niche?
- Listings span $30.91–$130.11; the average listing price is $75.46 (sweet spot $15–$100). The average incumbent carries 1,958 reviews — the moat a new listing must climb.