---
title: "Samsung Galaxy S21 Ultra Case Wallet — $29K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/samsung-galaxy-s21-ultra-case-wallet"
last_updated: "2026-08-09T14:31:19.287Z"
locale: en
meta:
description: "Niche score 47/100 · $29K/yr market · 60K searches/yr · $16.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $29K/yr market · 60K searches/yr · $16.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Samsung Galaxy S21 Ultra Case Wallet — $29K/yr Amazon US Niche (2026) - Flapen"
---
# **samsung galaxy s21 ultra case wallet**
**Skip it**
A small market ($29K/yr) — this niche doesn't clear our bar today.
Market size 7Growth 17Conversion 38Competition 82Returns 33Price range 65Avg price 78Brand share 95Review moat 24Quality gap 58
**Brand share**
**Great****40%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****33%**
top-5 click share — an open shelf
**Avg price**
**Great****$16.11**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$7.80–$28.27**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****3.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Okay****4.3%**
return rate — above 5% kills the launch gate
**Review moat**
**Bad****6,091.83**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-15.5%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$29K**
$29K/yr · 60K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, samsung galaxy s21 ultra case wallet is a $29K/yr Amazon United States market (60K searches/yr). The top 5 brands hold 40% of demand. Demand peaks in Jul. Verdict: Skip it — 47/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **samsung galaxy s21 ultra case wallet market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$16K–$20K**
- units × avg price
- **Conversion rate**
- **3.0%**
- **Avg BSR**
- **#5,366**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **77%**
- **Out of stock**
- **9.8%**
- **Avg brand age**
- **34 months**
- **Avg seller age**
- **185 days**
## **Competition & brand share**
Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.
**Brands**
**42 **▼falling
**Sellers**
**56**
**Top-5 brand share**
**40%**
Top 20: 82%
**Top-5 click share**
**33%**
Top 20: 64%
**Open market**
**55%**
- Nvollnoe11% - Vofolen8% - Spigen8% - SUANPOT7% - ONETOP7% - iCoverCase5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -15.5% search growth over the last 90 days.
4K3KPrime Day '25Black Friday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Jul · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/cell-phones-accessories/samsung-galaxy-s21-ultra-case-wallet/trend)
## **Top samsung galaxy s21 ultra case wallet search terms**
- **s21 ultra phone case wallet**10K/yr-16.9%1.2% conv. - **samsung galaxy s21 ultra case wallet**6K/yr+0.8%1.2% conv. - **samsung galaxy s21 ultra wallet case**6K/yr+2.0%1.2% conv. - **spigen s21 ultra case**5K/yr-13.6%1.4% conv. - **galaxy s21 ultra case wallet**5K/yr-24.9%1.5% conv. - **samsung s21 ultra case wallet**5K/yr-33.0%1.2% conv. - **samsung s21 ultra wallet case**5K/yr-11.9%0.8% conv. - **s21 ultra wallet case**5K/yr+4.8%0.9% conv. - **galaxy s21 ultra wallet case**4K/yr-32.2%2.6% conv. - **samsung galaxy s21 ultra case with card holder**2K/yr+10.5%2.3% conv. [**All search terms **](https://flapen.com/research/us/cell-phones-accessories/samsung-galaxy-s21-ultra-case-wallet/search-terms)
## **Top samsung galaxy s21 ultra case wallet 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%3%$8716%$2K9%$3K12%$3K101001K10K100K1.0M Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Nvollnoe for Samsung S21 Ultra Case with Card Holder Dual Layer Heavy Duty Protective for Galaxy S21 Ultra Case Hidden Card Slot Slim Wallet Case for Samsung S21 Ultra(Black)**Nvollnoe**$10.16**4.2★2,220 rev](https://www.amazon.com/dp/B0C5D53RLJ) [2**SUANPOT for Samsung Galaxy S21 Ultra 6.8 with RFID Blocking Leather Wallet case Credit Card Holder Flip Folio Book Phone case Shockproof Cover Women Men for Samsung S21 Ultra case Wallet Light Brown**SUANPOT**$18.63**4.5★1,353 rev](https://www.amazon.com/dp/B093PBXJYV) [3**ONETOP Compatible with Samsung Galaxy S21 Ultra Wallet Case with Card Holder PU Leather Kickstand Card Slots Case Double Magnetic Clasp and Durable Shockproof Cover 5G 6.8 Inch(Black)**ONETOP**$21.08**4.5★4,330 rev](https://www.amazon.com/dp/B0972PHQZS) [4**Vofolen for Galaxy S21 Ultra Case Wallet 4-Card Flip Cover Credit Card Holder Slot Back Pocket Dual Layer Protective Hybrid Hard Shell Bumper Armor Case for Samsung S21 Ultra 6.8 Gun Metal**Vofolen**$9.60**4.4★1,518 rev](https://www.amazon.com/dp/B08RMXJLJZ) [5![Samsung Galaxy S21 Ultra 5G Wallet Case with [RFID Blocking] Card Holder Magnetic Kickstand Soft Leather Flip Protective Case Wallet for Samsung Galaxy S21 Ultra 5G 6.8 Inch -Black](https://m.media-amazon.com/images/I/516tYtQheyL.jpg)**Samsung Galaxy S21 Ultra 5G Wallet Case with \[RFID Blocking\] Card Holder Magnetic Kickstand Soft Leather Flip Protective Case Wallet for Samsung Galaxy S21 Ultra 5G 6.8 Inch -Black**Lxisxcna**$13.83**4.4★277 rev](https://www.amazon.com/dp/B0CBTNRW85)
**~~View all top sellers →~~**
### **Newest**
by launch date
[![TIANNIUKE for Samsung Galaxy S21 Ultra Case with Card Holder & Kickstand Detachable Stronger Magnetic Wallet [Compatible with MagSafe] Military Shockproof Protective Slim Phone Case Clear](https://m.media-amazon.com/images/I/51Ach6cKUhL.jpg)**TIANNIUKE for Samsung Galaxy S21 Ultra Case with Card Holder & Kickstand Detachable Stronger Magnetic Wallet \[Compatible with MagSafe\] Military Shockproof Protective Slim Phone Case Clear**TIANNIUKE**$19.77**18 rev3mo ago](https://www.amazon.com/dp/B0GSHRBGTX) [**Toycamp for Samsung Galaxy S21 Ultra Wallet Case with Wrist Strap - Leather Flip Folio Cover with RFID Blocking 4 Card Slots Galaxy S21 Ultra Cute Aesthetic for Women Lady Black Sun Moon**Toycamp**$16.03**510 rev7mo ago](https://www.amazon.com/dp/B0G4R7JV5H) [**Uppuppy for Samsung Galaxy S21 Ultra Case with Wallet - Fits 4 Card Slots Compatible with MagSafe for Women Men Durable PU Leather Credit Card Holder Kickstand Phone Cover for Samsung S21 Ultra Black**Uppuppy**$12.32**110 rev7mo ago](https://www.amazon.com/dp/B0G48V4DKT) [**Pilaru for Samsung Galaxy S21 Ultra Case with Card Holder and (2 Pcs) HD Screen Protector Slim Heavy Duty Dual Layer Shockproof Design & Hidden Card Slot Wallet Case for S21 Ultra-Black**Pilaru**$9.05**846 rev1y ago](https://www.amazon.com/dp/B0F1FRWP96) [**NNH Compatible with Samsung Galaxy S21 Ultra Wallet Case with RFID Blocking Card Slots Flip PU Leather Kickstand Double Magnetic Clasp Design Cover for Galaxy S21 Ultra(6.8 inch-Butterfly Flowers)**NNH**$15.77**179 rev1y ago](https://www.amazon.com/dp/B0DMDZM33J)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[![TIANNIUKE for Samsung Galaxy S21 Ultra Case with Card Holder & Kickstand Detachable Stronger Magnetic Wallet [Compatible with MagSafe] Military Shockproof Protective Slim Phone Case Clear](https://m.media-amazon.com/images/I/51Ach6cKUhL.jpg)**TIANNIUKE for Samsung Galaxy S21 Ultra Case with Card Holder & Kickstand Detachable Stronger Magnetic Wallet \[Compatible with MagSafe\] Military Shockproof Protective Slim Phone Case Clear**TIANNIUKE**$19.77**4.3★**▲ 383%**](https://www.amazon.com/dp/B0GSHRBGTX) [**Uppuppy for Samsung Galaxy S21 Ultra Case with Wallet - Fits 4 Card Slots Compatible with MagSafe for Women Men Durable PU Leather Credit Card Holder Kickstand Phone Cover for Samsung S21 Ultra Black**Uppuppy**$12.32**4.4★**▲ 278%**](https://www.amazon.com/dp/B0G48V4DKT) [**Toycamp for Samsung Galaxy S21 Ultra Wallet Case with Wrist Strap - Leather Flip Folio Cover with RFID Blocking 4 Card Slots Galaxy S21 Ultra Cute Aesthetic for Women Lady Black Sun Moon**Toycamp**$16.03**4.5★**▲ 177%**](https://www.amazon.com/dp/B0G4R7JV5H) [![Spigen for Galaxy S21 Case Liquid Air [No Magnet Ring] [Military-Grade Protection] - Matte Black](https://m.media-amazon.com/images/I/51XhOoKY1TL.jpg)**Spigen for Galaxy S21 Case Liquid Air \[No Magnet Ring\] \[Military-Grade Protection\] - Matte Black**Spigen**$12.91**4.6★**▲ 117%**](https://www.amazon.com/dp/B08LK27MLH) [**ONETOP Compatible with Samsung Galaxy S21 Ultra Wallet Case with Card Holder PU Leather Kickstand Card Slots Case Double Magnetic Clasp and Durable Shockproof Cover 5G 6.8 Inch(Black)**ONETOP**$21.08**4.5★**▲ 108%**](https://www.amazon.com/dp/B0972PHQZS)
**~~View all trending →~~**
## **What buyers say about samsung galaxy s21 ultra case wallet**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**20%
*“Fits perfectly”*
**Quality-Overall**14%
*“excellent long lasting quality”*
**Strength**8%
*“Solid Case”*
**Value For Money**8%
*“Worth buying”*
**Durability**5%
*“So attractive and durable”*
**Advertised Vs Actual Product**5%
*“As Advertised”*
**Color**5%
*“Great phone case with lovely color”*
**Drop/Impact Protection**3%
*“but the case itself is quite protective”*
**Material Quality**3%
*“The material of this phone case is made well”*
**Design-Overall**3%
*“quality and design, it's great”*
### **What buyers complain about **
**Durability**23%
*“Broke”*
**Charging**9%
*“It's difficult to get it to charge when docked”*
**Size-Overall**8%
*“Too large”*
**Product Condition**6%
*“Used item sent”*
**Touch/Button Controls**5%
*“Buttons dont line up after a few months”*
**Quality-Overall**5%
*“The build quality is abysmal”*
**Grip**5%
*“Not grippy”*
**Magnetic Strength/Adsorption**3%
*“Don't buy this case of you want a case with a magnet receiver”*
**Material Quality**2%
*“Material is not rubbery so be careful”*
**Functionality-Overall**2%
*“Does not work”*
### **Top return reasons **
**Size-Overall**53%
**Compatibility-Overall**9%
**Advertised Vs Actual Product**4%
**Magnetic Strength/Adsorption**3%
**Grip**3%
**Charging**3%
**Color**2%
**Material Quality**2%
**Product Condition**2%
**Functionality-Overall**2%
## **Common questions**
- **Is samsung galaxy s21 ultra case wallet profitable to sell on Amazon United States?**
- The niche generates $29K/yr across 64 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -15.5%. Flapen's verdict: Skip it (47/100).
- **How competitive is the samsung galaxy s21 ultra case wallet niche?**
- 42 brands and 56 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 40% of demand.
- **What do buyers complain about in samsung galaxy s21 ultra case wallet?**
- Top complaints mined from reviews: Durability, Charging, Size-Overall. The return rate is 4.3%.
- **When does demand for samsung galaxy s21 ultra case wallet peak?**
- Demand peaks in Jul; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the samsung galaxy s21 ultra case wallet niche?**
- Listings span $7.80–$28.27; the average listing price is $16.11 (sweet spot $15–$100). The average incumbent carries 6,092 reviews — the moat a new listing must climb.
## **Related niches in Cell Phones & Accessories**
- 65 [**retractable iphone charger cord**](https://flapen.com/research/us/cell-phones-accessories/retractable-iphone-charger-cord)$1.8M/yr-28.0%**Worth a look**- 65 [**bluetooth headset**](https://flapen.com/research/us/cell-phones-accessories/bluetooth-headset)$2.7M/yr-2.2%**Worth a look**- 65 [**iphone 14 pro max screen replacement**](https://flapen.com/research/us/cell-phones-accessories/iphone-14-pro-max-screen-replacement)$1.1M/yr+5.7%**Launch it**- 65 [**iphone 15 pro max privacy screen protector**](https://flapen.com/research/us/cell-phones-accessories/iphone-15-pro-max-privacy-screen-protector)$3.0M/yr-5.1%**Worth a look**- 66 [**samsung charger**](https://flapen.com/research/us/cell-phones-accessories/samsung-charger)$2.4M/yr-4.5%**Worth a look**- 66 [**portable apple watch charger**](https://flapen.com/research/us/cell-phones-accessories/portable-apple-watch-charger)$869K/yr+15.4%**Launch it**[**All Cell Phones & Accessories niches **](https://flapen.com/research/us/cell-phones-accessories)