---
title: "379 Battery Watch — $300K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/379-battery-watch"
last_updated: "2026-08-09T17:53:27.651Z"
locale: en
meta:
description: "Niche score 51/100 · $300K/yr market · 146K searches/yr · $8.38 avg price. Soft demand (-3.9% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $300K/yr market · 146K searches/yr · $8.38 avg price. Soft demand (-3.9% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "379 Battery Watch — $300K/yr Amazon US Niche (2026) - Flapen"
---
# **379 battery watch**
**Worth a look**
Shows searches that convert (24.6% search→purchase), but soft demand (-3.9% this quarter) keeps it on the watch list.
Market size 51Growth 23Conversion 100Competition 41Returns 96Price range 74Avg price 23Brand share 37Review moat 59Quality gap 23
**Conversion**
**Incredible****24.6%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.8%**
return rate — above 5% kills the launch gate
**Price range**
**Good****$2.21–$52.23**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****1,149.67**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Good****$300K**
$300K/yr · 146K searches
**Competition**
**Okay****60%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-3.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****$8.38**
avg listing price — sweet spot $15–$100
According to Flapen's Amazon United States niche tracking, 379 battery watch is a $300K/yr Amazon United States market (146K searches/yr). The top 5 brands hold 83% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **379 battery watch market data**
- **Units sold / yr**
- **30K–40K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **$251K–$335K**
- units × avg price
- **Conversion rate**
- **24.6%**
- **Avg BSR**
- **#428**
- **Page quality**
- **0%**
- **Prime**
- **78%**
- **Sponsored**
- **44%**
- **Out of stock**
- **5.0%**
- **Avg brand age**
- **82 months**
- **Avg seller age**
- **162 days**
## **Competition & brand share**
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▲rising
**Sellers**
**38**
**Top-5 brand share**
**83%**
Top 20: 100%
**Top-5 click share**
**60%**
Top 20: 100%
**Open market**
**12%**
- UOGTNON21% - Energizer19% - SKOANBE17% - Renata16% - DURACELL9% - LOOPACELL6% - Open — no brand owns it (5 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 101 weeks — -3.9% search growth over the last 90 days.
3K2KBlack Friday '25 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/health-household/379-battery-watch/trend)
## **Top 379 battery watch search terms**
- **379 watch battery**48K/yr-3.9%21.2% conv. - **sr521sw watch battery**27K/yr-4.2%23.3% conv. - **watch battery 379**16K/yr-1.6%20.6% conv. - **sr521sw**9K/yr+14.1%19.7% conv. - **379 battery**9K/yr-8.6%19.3% conv. - **battery 379**4K/yr-7.0%24.1% conv. - **sr521sw battery**5K/yr-13.4%15.2% conv. - **watch batteries 379**4K/yr-25.7%20.9% conv. - **renata 379 watch battery**3K/yr-7.9%25.8% conv. - **379 battery watch**3K/yr+16.0%20.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/379-battery-watch/search-terms)
## **Top 379 battery watch 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%4%$12K8%$24K12%$36K16%$48K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**UOGTNON 379 SR521SW V379 Watch Battery 1.5V Button Cell (10-Pack)**UOGTNON**$5.49**4.7★1,965 rev](https://www.amazon.com/dp/B096STW1JV) [2**SKOANBE 10PCS SR521SW AG0 LR521 379 1.5v Button Coin Cell Watch Battery**SKOANBE**$5.20**4.6★1,343 rev](https://www.amazon.com/dp/B08GP4GR4F) [3**Energizer 379 Low Drain 1.55V Silver Oxide Batteries (5 Per Pack)**Energizer**$7.95**4.8★126 rev](https://www.amazon.com/dp/B0D2JKMRK3) [4**Duracell 379 Silver Oxide Button Battery 1 Count Pack 379 1.5 Volt Battery Long-Lasting for Watches Medical Devices Calculators and More**DURACELL**$5.26**4.7★1,990 rev](https://www.amazon.com/dp/B07GN8MS3Z) [5**Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count)**Renata**$4.31**4.6★2,378 rev](https://www.amazon.com/dp/B00MV74Q46)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**hunbath 30 Packs SR521SW 379 Watch Battery 1.55V LR521 AG0 Alkaline Batteries Button Coin Cell for Watches**hunbath**$6.92**36 rev2y ago](https://www.amazon.com/dp/B0CP21YS55) [**Bare Steps A83**Merrell**$52.23**350 rev2y ago](https://www.amazon.com/dp/B0C3RRVD87) [**Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count)**Renata**$4.99**2,378 rev4y ago](https://www.amazon.com/dp/B09VVKDYZ4) [**SKOANBE 10PCS SR521SW AG0 LR521 379 1.5v Button Coin Cell Watch Battery**SKOANBE**$5.20**1,343 rev5y ago](https://www.amazon.com/dp/B08GP4GR4F) [**SKOANBE 20Packs SR521SW 379 LR521 AG0 1.5V Silver Oxide Watch Battery**SKOANBE**$6.24**1,343 rev5y ago](https://www.amazon.com/dp/B08GPJM7PW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Bare Steps A83**Merrell**$52.23**4.4★**▲ 312%**](https://www.amazon.com/dp/B0C3RRVD87) [**SKOANBE 20Packs SR521SW 379 LR521 AG0 1.5V Silver Oxide Watch Battery**SKOANBE**$6.24**4.6★**▲ 232%**](https://www.amazon.com/dp/B08GPJM7PW) [**Energizer 379 Silver Oxide Button Battery 1 Pack**Energizer**$5.33**4.6★**▲ 150%**](https://www.amazon.com/dp/B00004YK0P) [**SKOANBE 10PCS SR521SW AG0 LR521 379 1.5v Button Coin Cell Watch Battery**SKOANBE**$5.20**4.6★**▲ 83%**](https://www.amazon.com/dp/B08GP4GR4F) [**hunbath 30 Packs SR521SW 379 Watch Battery 1.55V LR521 AG0 Alkaline Batteries Button Coin Cell for Watches**hunbath**$6.92**4.6★**▲ 72%**](https://www.amazon.com/dp/B0CP21YS55)
**~~View all trending →~~**
## **What buyers say about 379 battery watch**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Battery Life**32%
*“Batteries work”*
**Advertised Vs Actual Product**26%
*“As advertised”*
**Value For Money**16%
*“Affordable”*
**Quality-Overall**7%
*“Good quality”*
**Efficiency**6%
*“Works great”*
**Size-Overall**5%
*“the fit was perfect”*
**Touch/Button Controls**2%
*“Fresh button batteries”*
**Product Condition**1%
*“Like a new watch”*
**Durability**1%
*“Long lasting”*
**Accuracy-Overall**1%
*“Accurate time”*
### **What buyers complain about **
**Battery Life**50%
*“Cheap battery”*
**Durability**11%
*“Died within a week”*
**Size-Overall**11%
*“doesnt fit my watch”*
**Value For Money**9%
*“Disappointed, as this was expensive”*
**Functionality-Overall**7%
*“and did not work”*
**Quality-Overall**2%
*“these were cheap”*
**Product Condition**2%
*“Unsure if old”*
**Thickness**2%
*“Too thick for one watch”*
### **Top return reasons **
**Size-Overall**42%
**Battery Life**17%
**Functionality-Overall**14%
**Compatibility-Overall**5%
**Advertised Vs Actual Product**5%
**Charging**3%
**Value For Money**3%
**Rusts/Corrodes**2%
**Ease Of Use**1%
**Width**1%
## **Common questions**
- **Is 379 battery watch profitable to sell on Amazon United States?**
- The niche generates $300K/yr across 18 tracked products. 90-day search growth is -3.9%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the 379 battery watch niche?**
- 11 brands and 38 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 83% of demand.
- **What do buyers complain about in 379 battery watch?**
- Top complaints mined from reviews: Battery Life, Durability, Size-Overall. The return rate is 0.8%.
- **When does demand for 379 battery watch peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the 379 battery watch niche?**
- Listings span $2.21–$52.23; the average listing price is $8.38 (sweet spot $15–$100). The average incumbent carries 1,150 reviews — the moat a new listing must climb.
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