---
title: "397 Watch Battery — $55K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/397-watch-battery"
last_updated: "2026-08-06T21:12:30.477Z"
locale: en
meta:
description: "Niche score 45/100 · $55K/yr market · 36K searches/yr · $6.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 45/100 · $55K/yr market · 36K searches/yr · $6.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "397 Watch Battery — $55K/yr Amazon US Niche (2026) - Flapen"
---
# **397 watch battery**
**Skip it**
Prices mostly outside the sweet spot ($3.35–$9.96) — this niche doesn't clear our bar today.
Market size 14Growth 40Conversion 100Competition 36Returns 98Price range 0Avg price 17Brand share 44Review moat 62Quality gap 30
**Conversion**
**Incredible****24.7%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****1,008.8**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+12.0%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****$6.13**
avg listing price — sweet spot $15–$100
**Market size**
**Bad****$55K**
$55K/yr · 36K searches
**Price range**
**Bad****$3.35–$9.96**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 397 watch battery is a $55K/yr Amazon United States market (36K searches/yr). The top 5 brands hold 79% of demand. Verdict: Skip it — 45/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **397 watch battery market data**
- **Units sold / yr**
- **6K–8K**
- avg 250–500/product
- **Revenue / yr**
- **$37K–$49K**
- units × avg price
- **Conversion rate**
- **24.7%**
- **Avg BSR**
- **#637**
- **Page quality**
- **0%**
- **Prime**
- **60%**
- **Sponsored**
- **33%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **87 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**10 **—flat
**Sellers**
**36**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 100%
**Open market**
**13%**
- Renata34% - Energizer14% - KaPonsec11% - SKOANBE10% - Cotchear10% - UOGTNON8% - Open — no brand owns it (4 brands, 13%)
## **Top 397 watch battery search terms**
- **397 watch battery**18K/yr+15.9%18.9% conv. - **sr726sw watch battery**4K/yr+20.7%20.0% conv. - **397/396 watch battery**4K/yr+2.9%21.0% conv. - **watch battery 397**3K/yr-1.1%23.8% conv. - **397 battery**3K/yr+15.7%19.7% conv. - **sr726sw**3K/yr+0.1%17.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/397-watch-battery/search-terms)
## **Top 397 watch battery 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%10%$5K20%$11K30%$16K40%$22K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Renata 397 SR726SW Batteries - 1.55V Silver Oxide 397 Watch Battery (2 Count)**Renata**$4.79**4.6★967 rev](https://www.amazon.com/dp/B00MV10K8S) [2**KaPonsec SR726SW 397 396 LR726 Silver Oxide Watch Battery-10Packs**KaPonsec**$6.67**4.4★200 rev](https://www.amazon.com/dp/B09BVMJB83) [3**Energizer Silver Oxide Watch Battery 397/396 Button Cell Pack of 5**Energizer**$9.41**4.7★717 rev](https://www.amazon.com/dp/B008DJ20YY) [4**SKOANBE SR726SW 397 1.5V Silver Oxide Watch Battery-10 Packs**SKOANBE**$7.56**4.5★282 rev](https://www.amazon.com/dp/B09BFL2BK5) [5![Cotchear AG2 396A LR726 SR726SW CX59 LR59 SR59 397 Button Cell Batteries [10 pcs-Pack]](https://m.media-amazon.com/images/I/515pk6Uh4wL.jpg)**Cotchear AG2 396A LR726 SR726SW CX59 LR59 SR59 397 Button Cell Batteries \[10 pcs-Pack\]**Cotchear**$4.35**4.5★546 rev](https://www.amazon.com/dp/B07KP6YFFP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Renata 396 SR726W Batteries - 1.55V Silver Oxide 396 Watch Battery (2 Count)**Renata**$7.18**451 rev4y ago](https://www.amazon.com/dp/B09VV5NS6C) [**KaPonsec SR726SW 397 396 LR726 Silver Oxide Watch Battery-10Packs**KaPonsec**$6.67**200 rev4y ago](https://www.amazon.com/dp/B09BVMJB83) [**SKOANBE SR726SW 397 1.5V Silver Oxide Watch Battery-10 Packs**SKOANBE**$7.56**282 rev4y ago](https://www.amazon.com/dp/B09BFL2BK5) [**UOGTNON 397 SR726SW Watch Battery 1.5V Button Cell (10-Pack)**UOGTNON**$6.62**203 rev6y ago](https://www.amazon.com/dp/B0CDC41TN2) [![Cotchear AG2 396A LR726 SR726SW CX59 LR59 SR59 397 Button Cell Batteries [10 pcs-Pack]](https://m.media-amazon.com/images/I/515pk6Uh4wL.jpg)**Cotchear AG2 396A LR726 SR726SW CX59 LR59 SR59 397 Button Cell Batteries \[10 pcs-Pack\]**Cotchear**$4.35**546 rev7y ago](https://www.amazon.com/dp/B07KP6YFFP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**KaPonsec SR726SW 397 396 LR726 Silver Oxide Watch Battery-10Packs**KaPonsec**$6.67**4.4★**▲ 76%**](https://www.amazon.com/dp/B09BVMJB83) [**Renata Batteries 397 Silver Oxide Button Cell Watch Battery (1 Pc)**Renata**$3.67**4.5★**▲ 63%**](https://www.amazon.com/dp/B001C1BXL6) [**Renata One (1) X 397 Sr726Sw Silver_Oxide Watch Battery 1.55V Blister Packed**Best Price Square**$3.35**4.5★**▲ 30%**](https://www.amazon.com/dp/B004WJLXMO) [**Energizer Silver Oxide Watch Battery 397/396 Button Cell Pack of 5**Energizer**$9.41**4.7★**▲ 26%**](https://www.amazon.com/dp/B008DJ20YY) [**SKOANBE SR726SW 397 1.5V Silver Oxide Watch Battery-10 Packs**SKOANBE**$7.56**4.5★**▲ 20%**](https://www.amazon.com/dp/B09BFL2BK5)
**~~View all trending →~~**
## **What buyers say about 397 watch battery**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**28%
*“Best deal”*
**Battery Life**21%
*“batteries work fine so far”*
**Advertised Vs Actual Product**16%
*“As advertised”*
**Quality-Overall**16%
*“Renata is a good brand”*
**Size-Overall**9%
*“Perfect fit”*
**Charging**2%
*“the ones I received were fully charged”*
**Durability**1%
*“hopefully long lasting”*
**Functionality-Overall**1%
*“Worked well, full voltage+”*
**Efficiency**1%
*“Working”*
**Energy Level**1%
*“slept watch gets energized”*
### **What buyers complain about **
**Battery Life**49%
*“Batteries arrived dead”*
**Durability**12%
*“All dead”*
**Size-Overall**10%
*“They didn't fit my watch”*
**Value For Money**6%
*“Not the cheapest option out there”*
**Rusts/Corrodes**5%
*“Corroded 2-Weeks in”*
**Advertised Vs Actual Product**5%
*“Misleading title”*
**Watch Mechanism**2%
*“Didnt even last a full 24 hours in my tiny old watch”*
**Product Condition**2%
*“These are old”*
**Metal Quality**2%
*“These are NOT SILVER OXIDE as described”*
### **Top return reasons **
**Size-Overall**51%
**Battery Life**12%
**Compatibility-Overall**12%
**Functionality-Overall**9%
**Advertised Vs Actual Product**6%
**Durability**2%
**Charging**2%
**Quality-Overall**2%
**Defective Material/Parts**1%
**Value For Money**1%
## **Common questions**
- **Is 397 watch battery profitable to sell on Amazon United States?**
- The niche generates $55K/yr across 15 tracked products. 90-day search growth is +12.0%. Flapen's verdict: Skip it (45/100).
- **How competitive is the 397 watch battery niche?**
- 10 brands and 36 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in 397 watch battery?**
- Top complaints mined from reviews: Battery Life, Durability, Size-Overall. The return rate is 0.4%.
- **What does it cost to enter the 397 watch battery niche?**
- Listings span $3.35–$9.96; the average listing price is $6.13 (sweet spot $15–$100). The average incumbent carries 1,009 reviews — the moat a new listing must climb.
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