Skip to content
47

samsung galaxy s21 wallet case

Skip it

A small market ($32K/yr) — this niche doesn't clear our bar today.

Market size 8Growth 17Conversion 23Competition 92Returns 9Price range 60Avg price 74Brand share 96Review moat 50Quality gap 70

Brand share

Incredible35%

top-5 brand share — no brand owns this niche

Competition

Great23%

top-5 click share — an open shelf

Avg price

Good$14.82

avg listing price — sweet spot $15–$100

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Price range

Good$7.12–$26.73

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

Review moat

Okay1,516.16

avg incumbent reviews — the moat a new listing must climb

Conversion

Bad1.8%

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

Growth

Bad-15.2%

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

Returns

Bad9.4%

return rate — above 5% kills the launch gate

Market size

Bad$32K

$32K/yr · 118K searches

According to Flapen's Amazon United States niche tracking, samsung galaxy s21 wallet case is a $32K/yr Amazon United States market (118K searches/yr). The top 5 brands hold 35% of demand. Demand peaks in Jul–Aug. Verdict: Skip it — 47/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

samsung galaxy s21 wallet case market data

Units sold / yr
2K–2K
avg 0–100/product
Revenue / yr
$22K–$30K
units × avg price
Conversion rate
1.8%
Avg BSR
#2,841
Page quality
0%
Prime
100%
Sponsored
89%
Out of stock
5.5%
Avg brand age
34 months
Avg seller age
195 days

Competition & brand share

Clicks spread well past the top 5 (23% combined) — an open shelf where new products get seen.

Brands

44 rising

Sellers

50

Top-5 brand share

35%

Top 20: 81%

Top-5 click share

23%

Top 20: 59%

Open market

60%

  • iCoverCase9%
  • Nvollnoe7%
  • ONETOP7%
  • Asuwish6%
  • Vofolen5%
  • Shieldtop5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -15.2% search growth over the last 90 days.
6K4KPrime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul, Aug · busiest ÷ quietest = 1.8×

Top samsung galaxy s21 wallet case search terms

  • s21 phone case wallet16K/yr
  • samsung galaxy s21 wallet case10K/yr
  • galaxy s21 wallet case9K/yr
  • samsung s21 wallet case9K/yr
  • s21 phone case with card holder7K/yr
  • galaxy s21 case wallet7K/yr
  • samsung s21 case wallet6K/yr
  • galaxy s21 5g case wallet6K/yr
  • s21 wallet phone case6K/yr
  • samsung s21 case with card holder5K/yr
All search terms

Top samsung galaxy s21 wallet case 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%2%$6364%$1K6%$2K8%$3K1101001K10K Reviews — right = deep review moat Market 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.

What buyers say about samsung galaxy s21 wallet case

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

What buyers love

Size-Overall17%

“Great fit”

Quality-Overall12%

“Great build quality”

Color11%

“Love the color”

Durability11%

“Pretty and durable”

Advertised Vs Actual Product11%

“was just as advertised”

Ease Of Use10%

“Very useful”

Value For Money5%

“Great value for the price”

Drop/Impact Protection4%

“I believe it probably would protect my phone in a fall better than than my similar before case”

Design-Overall3%

“DESIGN”

Portability2%

“Get to carry my id, my credit cards”

What buyers complain about

Size-Overall32%

“It is too short”

Durability12%

“Broken within a month”

Compatibility-Overall11%

“Does not fit s21”

Quality-Overall10%

“Cheap”

Magnetic Strength/Adsorption5%

“the magnetic thing that holds it closed is already got signs of breaking”

Advertised Vs Actual Product3%

“Maybe the description is a little deceiving”

Smell3%

“Stinky”

Touch/Button Controls3%

“Button alignment sucked”

Material Quality2%

“Very cheap material”

Color2%

“the darker color starts rubbing off after a few months”

Top return reasons

Size-Overall77%
Compatibility-Overall9%
Advertised Vs Actual Product2%
Magnetic Strength/Adsorption2%
Touch/Button Controls1%
Quality-Overall1%
Color1%
Charging1%
Functionality-Overall1%
Strength1%

Common questions

Is samsung galaxy s21 wallet case profitable to sell on Amazon United States?
The niche generates $32K/yr across 80 tracked products. 0 of 12 products launched in the last 360 days are still selling. 90-day search growth is -15.2%. Flapen's verdict: Skip it (47/100).
How competitive is the samsung galaxy s21 wallet case niche?
44 brands and 50 sellers compete. The top 5 products take 23% of clicks and top 5 brands hold 35% of demand.
What do buyers complain about in samsung galaxy s21 wallet case?
Top complaints mined from reviews: Size-Overall, Durability, Compatibility-Overall. The return rate is 9.4% — above our launch gate.
When does demand for samsung galaxy s21 wallet case peak?
Demand peaks in Jul–Aug; the busiest month runs 1.8× the quietest.
What does it cost to enter the samsung galaxy s21 wallet case niche?
Listings span $7.12–$26.73; the average listing price is $14.82 (sweet spot $15–$100). The average incumbent carries 1,516 reviews — the moat a new listing must climb.