---
title: "S21 Ultra S Pen — $436K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/s21-ultra-s-pen"
last_updated: "2026-08-09T13:16:03.011Z"
locale: en
meta:
description: "Niche score 55/100 · $436K/yr market · 673K searches/yr · $22.10 avg price. Soft demand (-21.6% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $436K/yr market · 673K searches/yr · $22.10 avg price. Soft demand (-21.6% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "S21 Ultra S Pen — $436K/yr Amazon US Niche (2026) - Flapen"
---
# **s21 ultra s pen**
**Worth a look**
Shows a sweet-spot price point ($22.10 avg), but soft demand (-21.6% this quarter) keeps it on the watch list.
Market size 57Growth 14Conversion 37Competition 62Returns 87Price range 87Avg price 93Brand share 44Review moat 45Quality gap 75
**Avg price**
**Great****$22.10**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.4%**
return rate — above 5% kills the launch gate
**Price range**
**Great****$6.97–$83.11**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Good****$436K**
$436K/yr · 673K searches
**Review moat**
**Okay****2,032.5**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****2.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-21.6%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, s21 ultra s pen is a $436K/yr Amazon United States market (673K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Dec. Verdict: Worth a look — 55/100.
Data updated Jul 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **s21 ultra s pen market data**
- **Units sold / yr**
- **15K–20K**
- avg 500–750/product
- **Revenue / yr**
- **$332K–$442K**
- units × avg price
- **Conversion rate**
- **2.9%**
- **Avg BSR**
- **#207**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **73%**
- **Out of stock**
- **4.8%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **178 days**
## **Competition & brand share**
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▼falling
**Sellers**
**54**
**Top-5 brand share**
**78%**
Top 20: 100%
**Top-5 click share**
**48%**
Top 20: 88%
**Open market**
**18%**
- Samsung32% - Rgar28% - Dogxiong9% - yelzoolny5% - Mingxiong4% - Alovexiong3%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -21.6% search growth over the last 90 days.
15K10KPrime Day '24Holiday '24Prime Day '25Black Friday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/cell-phones-accessories/s21-ultra-s-pen/trend)
## **Top s21 ultra s pen search terms**
- **s pen**121K/yr-21.2%1.2% conv. - **samsung s pen**72K/yr-0.4%1.4% conv. - **samsung pen**54K/yr-19.3%1.8% conv. - **samsung tablet pen**50K/yr-21.4%2.8% conv. - **samsung pen for tablets**40K/yr-28.2%2.8% conv. - **samsung stylus**32K/yr-11.1%2.1% conv. - **spen**61K/yr-60.8%1.0% conv. - **s pen pro**35K/yr-26.3%0.4% conv. - **samsung stylus pen for tablet**27K/yr-13.1%3.2% conv. - **samsung tablet stylus pen**24K/yr-6.7%3.1% conv. [**All search terms **](https://flapen.com/research/us/cell-phones-accessories/s21-ultra-s-pen/search-terms)
## **Top s21 ultra s pen 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%5%$22K10%$44K15%$65K20%$87K101001K10K100K 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**Stylus Pen Android for Samsung Galaxy Tab A11+/A11/A9/A9Plus/A8/A8plus/A7/A7lite Tablet S Pencil Touchscreens Stylists Pen(Pink)**Rgar**$8.35**4.1★1,424 rev](https://www.amazon.com/dp/B0F67DR8WZ) [2**Samsung Galaxy Tab S9 Series S Pen for Writing Drawing Navigating Tablet Easy Charging on Magnetic Holder IP68 Rating Air Command for Personalized Actions US Version EJ-PX710BBEGUJ Black**Samsung**$40.20**4.4★411 rev](https://www.amazon.com/dp/B0C795CJ52) [3**Stylus Pen Android for Samsung Galaxy Tab A11+/A11/A9/A9Plus/A8/A8plus/A7/A7lite Tablet S Pencil Touchscreens Stylists Pen(Black)**Rgar**$8.57**4.1★1,424 rev](https://www.amazon.com/dp/B0F67DCCP7) [4**Samsung Galaxy S Pen for Tab S11/S11 Ultra Ergonomic Design Natural Touch Stylish Stylus Durable US Version White**Samsung**$55.98**4.6★74 rev](https://www.amazon.com/dp/B0FKMJ4J45) [5**Mystic Black Tab S7 FE Pen for Samsung Galaxy Tab S7 FE SPen Stylus Pen Replacement + Free 5 Tips for Samsung Galaxy Tab S7 FE Stylus S Pen**Dogxiong**$12.69**4.3★852 rev](https://www.amazon.com/dp/B0C1C6D8NN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Stylus Pen for Samsung Galaxy Tab A11 / A11+ A9 / A9+ A8 A7 Lite Active Capacitive Pencil for Samsung Android Tablet & iOS Touchscreens High Precision Digital Pen with 4 Tips (Blue)**yelzoolny**$7.09**279 rev5mo ago](https://www.amazon.com/dp/B0GHSZ9LPK) [**Samsung Galaxy S Pen for Tab S11/S11 Ultra Ergonomic Design Natural Touch Stylish Stylus Durable US Version White**Samsung**$55.98**74 rev10mo ago](https://www.amazon.com/dp/B0FKMJ4J45) [**Galaxy Tab S9 FE S Pen Replacement for Samsung Galaxy Tablet S9 FE Stylus - Air Command Magnetic Attraction Compatible with Tablet S9 FE/S10 FE Stylus Pen (Gray)**yelzoolny**$10.45**172 rev11mo ago](https://www.amazon.com/dp/B0FHFPJYFX) [**Galaxy S25 Ultra S Pen Replacement for Samsung Galaxy S25 Ultra Stylus Pen S25 Ultra Pen Replacement for Samsung Galaxy S25 Ultra 5G 6.9 in All Versions S Pen EJ-PS938BBEGUJ(Black)**Mingxiong**$11.32**1,139 rev1y ago](https://www.amazon.com/dp/B0DWK3542L) [**Galaxy S25 Ultra S Pen for Samsung Galaxy S25 Ultra SPen Replacement US Version EJ-PS938BBEGUJ Samsung Galaxy S25 Ultra Stylus Pen for Samsung Galaxy S25 Ultra (Black)**Alovexiong**$10.16**328 rev1y ago](https://www.amazon.com/dp/B0DWK8K8VT)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Stylus Pen for Samsung Galaxy Tab A11 / A11+ A9 / A9+ A8 A7 Lite Active Capacitive Pencil for Samsung Android Tablet & iOS Touchscreens High Precision Digital Pen with 4 Tips (Blue)**yelzoolny**$7.09**3.9★**▲ 269%**](https://www.amazon.com/dp/B0GHSZ9LPK) [**Galaxy S25 Ultra S Pen Replacement for Samsung Galaxy S25 Ultra Stylus Pen S25 Ultra Pen Replacement for Samsung Galaxy S25 Ultra 5G 6.9 in All Versions S Pen EJ-PS938BBEGUJ(Black)**Mingxiong**$11.32**4.4★**▲ 222%**](https://www.amazon.com/dp/B0DWK3542L) [**Galaxy S25 Ultra S Pen for Samsung Galaxy S25 Ultra SPen Replacement US Version EJ-PS938BBEGUJ Samsung Galaxy S25 Ultra Stylus Pen for Samsung Galaxy S25 Ultra (Black)**Alovexiong**$10.16**4.4★**▲ 184%**](https://www.amazon.com/dp/B0DWK8K8VT) [**Galaxy Tab S10 FE/ S10 FE+ Stylus Pen for Samsung Galaxy Tab S10 FE / S10 FE Plus/ S10 FE+ S Pen Compatible with Samsung Galaxy Tab SPen S10FE/ S10 FE+ / S10 FE Plus with Nibs (Black)**Peixiong**$15.25**4.0★**▲ 146%**](https://www.amazon.com/dp/B0DKSLWTB6) [**Samsung Galaxy Official S Pen for Tab S10 FE/FE+ S9 FE/FE+ Grey**Samsung**$36.02**4.4★**▲ 79%**](https://www.amazon.com/dp/B0CH8PHK9M)
**~~View all trending →~~**
## **What buyers say about s21 ultra s pen**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Compatibility-Overall**14%
*“It paired easily”*
**Value For Money**12%
*“Great Value”*
**Quality-Overall**11%
*“Good quality build and look sleek”*
**Advertised Vs Actual Product**11%
*“Exactly as described”*
**Ease Of Use**8%
*“Easy to hold”*
**Size-Overall**7%
*“Perfect length”*
**Touch/Button Controls**4%
*“Works Very well on my touch screen”*
**Color**3%
*“Good neutral colors too”*
**Durability**3%
*“Feels durable, metal, comes with plenty of replacement nibs”*
**Functionality-Overall**2%
*“works very well”*
### **What buyers complain about **
**Functionality-Overall**15%
*“Did not work”*
**Compatibility-Overall**11%
*“Not Compatible”*
**Quality-Overall**11%
*“Horrible quality”*
**Durability**10%
*“Breaks easily”*
**Charging**7%
*“now won't charge”*
**Touch/Button Controls**6%
*“The click button broke almost immediately”*
**Value For Money**5%
*“A little expensive”*
**Size-Overall**3%
*“They were to long”*
**Ease Of Use**3%
*“Difficult to use”*
**Connectivity-Overall**3%
*“Doesn't connect”*
### **Top return reasons **
**Compatibility-Overall**33%
**Functionality-Overall**24%
**Connectivity-Overall**6%
**Size-Overall**6%
**Advertised Vs Actual Product**5%
**Defective Material/Parts**4%
**Value For Money**3%
**Color**3%
**Charging**3%
**Touch/Button Controls**2%
## **Common questions**
- **Is s21 ultra s pen profitable to sell on Amazon United States?**
- The niche generates $436K/yr across 30 tracked products. 5 of 6 products launched in the last 360 days are still selling. 90-day search growth is -21.6%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the s21 ultra s pen niche?**
- 16 brands and 54 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in s21 ultra s pen?**
- Top complaints mined from reviews: Functionality-Overall, Compatibility-Overall, Quality-Overall. The return rate is 1.4%.
- **When does demand for s21 ultra s pen peak?**
- Demand peaks in Dec; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the s21 ultra s pen niche?**
- Listings span $6.97–$83.11; the average listing price is $22.10 (sweet spot $15–$100). The average incumbent carries 2,033 reviews — the moat a new listing must climb.
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