Samsung S21 Case
FailPrices span $2.16–$16.80, mostly outside the sweet spot, so Samsung S21 Case is a Fail.
- Flapen Score
- 48 / 100Top 31% of 1,488 Electronics & Photo niches · +4 vs the category median of 4448
- Market size
- £138K/yr558K searches / yr
- 90-day growth
- -13.6%search demand this quarter
- Competition
- 38%top-5 click share · 42 brands · 54 sellers
Flapen Score
Samsung S21 Case against its category
The dotted line is the Electronics & Photo average. Past it, Samsung S21 Case is stronger. Inside it, weaker.
Market
The Samsung S21 Case market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Samsung S21 Case 558K times last year and spent an estimated £138K. The top 5 brands take 42% of clicks. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 3.2% of those searches ended in a purchase.
Shoppers searched for this 558K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 3.2% of those searches ended in a purchase. Searches in the last 90 days moved -13.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated £138K a year.
- Searches, last 12 months
- 558K
- Growth, 90 days vs prior 90
- -13.6%
- Conversion, latest week
- 3.2%
- Market size, estimated
- £138Ka year
- Peak month
- December1.5× the quietest month
- Top search term
- samsung s21 case147K searches a year
02 · Price
A sale here is worth £7.81.
Listings sell for £7.81 on average, from £2.16 to £16.80. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 100 to 250 of them. At £7.81 that is £781 to £2K a year per listing.
- Average price
- £7.81under the $15 to $100 sweet spot
- Price range
- £2.16–£16.80
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 100–250
- Revenue per listing a year
- £781–£2K
- Returns
- 3.8%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
81% of listings pay for placement with sponsored ads. 98% ship with Prime. On an average day, 3.0% of listings are out of stock. The average listing ranks #2,296 within Cases & Covers. It carries 2,774 reviews at 4.26 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 81%
- Prime listings
- 98%
- Out of stock, average day
- 3.0%
- Average rank
- #2,296in Cases & Covers
- Average rating
- 4.26 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 2,774per listing
- Listings tracked
- 57
04 · Newcomers
0 of last year's 7 launches cleared the first-year sales bar.
7 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 38 months on average, so the names here are settling in.
- Launched, last 12 months
- 7
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 38 months
Products
Top Samsung S21 Case products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share![AIMOYU for Samsung Galaxy S21 5G Case Flip Wallet Leather Phone Case with [4 Card Slots] [Kickstand] [RFID Blocking] Magnetic Protective Shockproof Cover for Samsung S21 Phone Case - Black](https://m.media-amazon.com/images/I/413yrzzeYbL.jpg)
AIMOYU for Samsung Galaxy S21 5G Case Flip Wallet Leather Phone Case with [4 Card Slots] [Kickstand] [RFID Blocking] Magnetic Protective Shockproof Cover for Samsung S21 Phone Case - Black
- Price
- £6.25
- Rating
- 4.5/5
- Reviews
- 5,386
- Age
- 1y ago

YATWIN Silicone Case for Samsung Galaxy S21 Soft-Touch Shockproof Slim Durable Phone Cover - Dark Green
- Price
- £5.51
- Rating
- 4.2/5
- Reviews
- 367
- Age
- 4y ago

Transparent protective case for Samsung Galaxy S21 5G - Hybrid design - Hard polycarbonate back with flexible TPU frame - Slim fit - For men women boys and girls - 4 corners
- Price
- £3.97
- Rating
- 4.6/5
- Reviews
- 1,970
- Age
- 5y ago

JETech Slim Fit Case Compatible with Samsung Galaxy S21 5G 6.2-Inch Thin Phone Cover with Shock-Absorption and Carbon Fiber Design (Black)
- Price
- £8.78
- Rating
- 4.4/5
- Reviews
- 7,772
- Age
- 5y ago

KRAFTCARE for Samsung S21 Case with Kickstand Ring and Screen Protector Shockproof and Anti Scratch 360 Magnetic Ring Holder Stand Phone Cover for Samsung Galaxy S21 - Dark Green
- Price
- £7.82
- Rating
- 4.3/5
- Reviews
- 1,003
- Age
- 3y ago
Trending
estimated 90-day click momentum
LeYi for Samsung Galaxy S21 5G-6.2 Inch Phone Case with Camera Cover Slider |2 Tempered Glass Screen Protectors Ring Stand Holder Rugged Protective Tough Armor Cover for Samsung S21 5G Black
- Price
- £5.68
- Rating
- 4.6/5
- Reviews
- 1,067
- Age
- 5mo ago

YATWIN Silicone Case for Samsung Galaxy S21 Soft-Touch Shockproof Slim Durable Phone Cover - Dark Blue
- Price
- £7.27
- Rating
- 4.5/5
- Reviews
- 71
- Age
- 3y ago

SUANDUCK for Samsung Galaxy S21 mobile phone case magnetic leather flip case with RFID-blocking card compartment adjustable stand and 360 drop protection with Samsung S21 Light Blue
- Price
- £16.80
- Rating
- 3.6/5
- Reviews
- 19
- Age
- 10mo ago

LOLFZ Wallet Case for Samsung Galaxy S21 Plus 5G Vintage Leather Book Case with Card Holder Kickstand Magnetic Closure Flip Case Cover for Galaxy S21 Plus 5G - Black
- Price
- £7.60
- Rating
- 4.4/5
- Reviews
- 1,387
- Age
- 5y ago

Hually Case Compatible with Samsung Galaxy S21 (6.2-inch) Crystal Clear Unique shock Ultra Thin Flexible TPU & Hard PC Cover for Samsung Galaxy S21 - Clear
- Price
- £2.61
- Rating
- 3.9/5
- Reviews
- 32
- Age
- 3y ago
Newest
by launch date
LeYi for Samsung Galaxy S21 5G-6.2 Inch Phone Case with Camera Cover Slider |2 Tempered Glass Screen Protectors Ring Stand Holder Rugged Protective Tough Armor Cover for Samsung S21 5G Black
- Price
- £5.68
- Rating
- 4.6/5
- Reviews
- 1,067
- Age
- 5mo ago

SUANDUCK for Samsung Galaxy S21 mobile phone case magnetic leather flip case with RFID-blocking card compartment adjustable stand and 360 drop protection with Samsung S21 Light Blue
- Price
- £16.80
- Rating
- 3.6/5
- Reviews
- 19
- Age
- 10mo ago
![AWZHYDT for Samsung S21 5G Case with 1 HD Screen Protector & Slide Camera Cover [Military-Grade] Phone Case Heavy Duty Rugged Shockproof Protective Cover for Samsung Galaxy S21(Cyan/Pink)](https://m.media-amazon.com/images/I/41hZtpiL-IL.jpg)
AWZHYDT for Samsung S21 5G Case with 1 HD Screen Protector & Slide Camera Cover [Military-Grade] Phone Case Heavy Duty Rugged Shockproof Protective Cover for Samsung Galaxy S21(Cyan/Pink)
- Price
- £8.26
- Rating
- 4.4/5
- Reviews
- 17
- Age
- 1y ago

Pilaru Sliding Card Holder Case for Samsung S21 | Hidden Slot Cards | 2 screen protectors | Shockproof & Anti-Slip Protective Wallet Cover | Durable Dual-Layer Design for Galaxy S21 Black
- Price
- £7.35
- Rating
- 4.3/5
- Reviews
- 513
- Age
- 1y ago
![AIMOYU for Samsung Galaxy S21 5G Case Flip Wallet Leather Phone Case with [4 Card Slots] [Kickstand] [RFID Blocking] Magnetic Protective Shockproof Cover for Samsung S21 Phone Case - Black](https://m.media-amazon.com/images/I/413yrzzeYbL.jpg)
AIMOYU for Samsung Galaxy S21 5G Case Flip Wallet Leather Phone Case with [4 Card Slots] [Kickstand] [RFID Blocking] Magnetic Protective Shockproof Cover for Samsung S21 Phone Case - Black
- Price
- £6.25
- Rating
- 4.5/5
- Reviews
- 5,386
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 38% of clicks, no more. An open shelf where new products get seen.
Brands
42 rising
Sellers
54
Est. top-5 brand share
42%
Top 20: 81%
Est. top-5 click share
38%
Top 20: 72%
Open market
54%
- YATWIN12%
- AIMOYU9%
- KIOMY8%
- JETech7%
- KRAFTCARE6%
- LeYi5%
Demand
Samsung S21 Case search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Search terms
Top Samsung S21 Case search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- samsung s21 case147K/yr
- s21 phone case123K/yr
- samsung galaxy s21 case52K/yr
- galaxy s21 case43K/yr
- samsung s21 phone case36K/yr
- galaxy s21 5g case27K/yr
- samsung s21 5g phone case16K/yr
- s21 5g phone case15K/yr
- s21 case17K/yr
- samsung galaxy s21 phone case12K/yr
Reviews and returns
What reviews say buyers love and hate about Samsung S21 Case
We read the reviews and the return reasons for every product selling here.
“case doesn't fit”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Samsung S21 Case questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









