galaxy a21 screen protector
Skip itPrices mostly outside the sweet spot ($5.12–$10.20) — this niche doesn't clear our bar today.
Conversion
Incredible19.6%search→purchase rate — share of searches ending in a sale
Returns
Good2.4%return rate — above 5% kills the launch gate
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Review moat
Okay2,072.9avg incumbent reviews — the moat a new listing must climb
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Avg price
Bad$8.40avg listing price — sweet spot $15–$100
Competition
Bad84%top-5 click share — a locked-up shelf
Growth
Bad-29.6%90-day search growth — must beat 0% to launch
Market size
Bad$12K$12K/yr · 7K searches
Price range
Bad$5.12–$10.20cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, galaxy a21 screen protector is a $12K/yr Amazon United States market (7K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Jul–Aug. Verdict: Skip it — 32/100.
Data updated Jul 6, 2026 · scored weekly · How we score niches
galaxy a21 screen protector market data
- Units sold / yr
- 1K–2K
- avg 0–100/product
- Revenue / yr
- $11K–$13K
- units × avg price
- Conversion rate
- 19.6%
- Avg BSR
- #4,954
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 60%
- Out of stock
- 31.6%
- Avg brand age
- 59 months
- Avg seller age
- 249 days
Competition & brand share
The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 falling
Sellers
10
Top-5 brand share
86%
Top 20: 100%
Top-5 click share
84%
Top 20: 100%
Open market
9%
- Supershieldz35%
- JxVrennzik15%
- HPTech15%
- beukei11%
- VIESUP10%
- LYWHL5%
- Open — no brand owns it (3 brands, 9%)
Demand & seasonality
Weekly Amazon search volume, last 101 weeks — -29.6% search growth over the last 90 days.Peak months: Jul, Aug · busiest ÷ quietest = 2.2×
Top galaxy a21 screen protector search terms
- galaxy a21 screen protector2K/yr
- samsung a21 screen protector2K/yr
- samsung galaxy a21 screen protector2K/yr
- a21 screen protector844/yr
Top galaxy a21 screen protector 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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Supershieldz (2 Pack) Designed for Samsung Galaxy A21 Tempered Glass Screen Protector Anti Scratch Bubble Free
Supershieldz$7.104.6★6,285 rev
![JxVrennzik [4 Pack] Tempered Glass Screen Protector for Samsung Galaxy A21](https://m.media-amazon.com/images/I/41YbMUxxSYL.jpg)
JxVrennzik [4 Pack] Tempered Glass Screen Protector for Samsung Galaxy A21
JxVrennzik$9.454.5★2 rev
HPTech (2 Pack) Designed For Samsung Galaxy A21 Tempered Glass Screen Protector Easy to Install Anti Scratch Bubble Free Case Friendly
HPTech$5.124.4★922 rev
beukei (4 Pack) for Samsung Galaxy A21 Screen Protector Tempered Glass Anti Scratch Bubble Free
beukei$7.134.6★353 rev
![VIESUP for Samsung Galaxy A21 Screen Protector Tempered Glass 9H Hardness HD Anti-Scratch Screen Protector Protective Film for Galaxy A21 [2-Pack]](https://m.media-amazon.com/images/I/41OtGQMMCrL.jpg)
VIESUP for Samsung Galaxy A21 Screen Protector Tempered Glass 9H Hardness HD Anti-Scratch Screen Protector Protective Film for Galaxy A21 [2-Pack]
VIESUP$10.204.4★51 rev
Newest
by launch dateJxVrennzik [4 Pack] Tempered Glass Screen Protector for Samsung Galaxy A21
JxVrennzik$9.452 rev
![Anvzle for Samsung Galaxy A21 Case with [2 Pack] Tempered Glass Screen Protector for Galaxy A21 Heavy Duty Armor [Military-Grade] Protective with Magnetic Ring Stand Phone Case Black](https://m.media-amazon.com/images/I/41Rw6L5XY+L.jpg)
Anvzle for Samsung Galaxy A21 Case with [2 Pack] Tempered Glass Screen Protector for Galaxy A21 Heavy Duty Armor [Military-Grade] Protective with Magnetic Ring Stand Phone Case Black
Anvzle$8.6853 rev
HPTech (2 Pack) Designed For Samsung Galaxy A21 Tempered Glass Screen Protector Easy to Install Anti Scratch Bubble Free Case Friendly
HPTech$5.12922 rev
![YEBF Galaxy A21 HD Clear Tempered Glass Screen Protector + Camera Lens Protectors by YEYEBF [2+2 Pack] [3D Glass] [Anti-Glare] [Bubble-Free] Screen Protector Glass for Samsung Galaxy A21](https://m.media-amazon.com/images/I/41dzP8At+uL.jpg)
YEBF Galaxy A21 HD Clear Tempered Glass Screen Protector + Camera Lens Protectors by YEYEBF [2+2 Pack] [3D Glass] [Anti-Glare] [Bubble-Free] Screen Protector Glass for Samsung Galaxy A21
YEYEBF$9.036,098 rev
VIESUP for Samsung Galaxy A21 Screen Protector Tempered Glass 9H Hardness HD Anti-Scratch Screen Protector Protective Film for Galaxy A21 [2-Pack]
VIESUP$10.2051 rev
Trending
90-day click momentumJxVrennzik [4 Pack] Tempered Glass Screen Protector for Samsung Galaxy A21
JxVrennzik$9.454.5★
VIESUP for Samsung Galaxy A21 Screen Protector Tempered Glass 9H Hardness HD Anti-Scratch Screen Protector Protective Film for Galaxy A21 [2-Pack]
VIESUP$10.204.4★
HPTech (2 Pack) Designed For Samsung Galaxy A21 Tempered Glass Screen Protector Easy to Install Anti Scratch Bubble Free Case Friendly
HPTech$5.124.4★
YEBF Galaxy A21 HD Clear Tempered Glass Screen Protector + Camera Lens Protectors by YEYEBF [2+2 Pack] [3D Glass] [Anti-Glare] [Bubble-Free] Screen Protector Glass for Samsung Galaxy A21
YEYEBF$9.034.4★
beukei (4 Pack) for Samsung Galaxy A21 Screen Protector Tempered Glass Anti Scratch Bubble Free
beukei$7.134.6★
What buyers say about galaxy a21 screen protector
What buyers praise and complain about, mined from review topics.What buyers love
“Very good product”
“Perfect fit”
“Prevents scratch's”
“ease of use”
“It stated compatible”
“the price was right”
“durable”
“Easy to install”
“Just as described”
What buyers complain about
“Junk”
“Fitting Issue”
“It did not fit my Galaxy Flip 7”
Top return reasons
Common questions
- Is galaxy a21 screen protector profitable to sell on Amazon United States?
- The niche generates $12K/yr across 10 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -29.6%. Flapen's verdict: Skip it (32/100).
- How competitive is the galaxy a21 screen protector niche?
- 9 brands and 10 sellers compete. The top 5 products take 84% of clicks and top 5 brands hold 86% of demand.
- What do buyers complain about in galaxy a21 screen protector?
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Compatibility-Overall. The return rate is 2.4%.
- When does demand for galaxy a21 screen protector peak?
- Demand peaks in Jul–Aug; the busiest month runs 2.2× the quietest.
- What does it cost to enter the galaxy a21 screen protector niche?
- Listings span $5.12–$10.20; the average listing price is $8.40 (sweet spot $15–$100). The average incumbent carries 2,073 reviews — the moat a new listing must climb.