---
title: "Sonicare 6100 Replacement Heads — $2.9M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/sonicare-6100-replacement-heads"
last_updated: "2026-08-11T02:42:59.822Z"
locale: en
meta:
description: "Niche score 55/100 · $2.9M/yr market. Brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $2.9M/yr market. Brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Sonicare 6100 Replacement Heads — $2.9M/yr Amazon US Niche (2026) - Flapen"
---
# **sonicare 6100 replacement heads**
**Worth a look**
Shows a $2.9M/yr market, but brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list.
Market size 96Growth 32Conversion 81Competition 48Returns 90Price range 27Avg price 72Brand share 12Review moat 22Quality gap 47
**Market size**
**Incredible****$2.9M**
$2.9M/yr · 315K searches
**Returns**
**Great****1.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****8.5%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$108.24**
avg listing price — sweet spot $15–$100
**Competition**
**Okay****56%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+5.5%**
90-day search growth — must beat 0% to launch
**Price range**
**Okay****$10.05–$320.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Bad****9,380.75**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, sonicare 6100 replacement heads is a $2.9M/yr Amazon United States market (315K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Jan–Jun. Verdict: Worth a look — 55/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sonicare 6100 replacement heads market data**
- **Units sold / yr**
- **25K–30K**
- avg 500–750/product
- **Revenue / yr**
- **$2.7M–$3.2M**
- units × avg price
- **Conversion rate**
- **8.5%**
- **Avg BSR**
- **#55**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **36%**
- **Out of stock**
- **3.6%**
- **Avg brand age**
- **34 months**
- **Avg seller age**
- **168 days**
## **Competition & brand share**
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**8 **▼falling
**Sellers**
**32**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**56%**
Top 20: 89%
**Open market**
**3%**
- Philips Sonicare87% - PHILIPS2% - GottaShine2% - AiNeedCare2% - utimcare2% - SuitShine2% - Open — no brand owns it (2 brands, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 84 weeks — +5.5% search growth over the last 90 days.
12K8KSpike '25Prime Day '25Holiday '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan, Jun · busiest ÷ quietest = 6.9×
[**Open Trend **](https://flapen.com/research/us/health-household/sonicare-6100-replacement-heads/trend)
## **Top sonicare 6100 replacement heads search terms**
- **sonicare diamondclean**62K/yr-1.6%2.4% conv. - **philips sonicare diamondclean**46K/yr-13.6%2.3% conv. - **sonicare diamondclean replacement heads**28K/yr+4.6%10.7% conv. - **philips sonicare replacement heads w**15K/yr+26.9%13.0% conv. - **sonicare replacement heads black**18K/yr-3.2%12.8% conv. - **sonicare replacement heads w**12K/yr+43.3%12.3% conv. - **philips sonicare replacement heads black**15K/yr-17.6%13.2% conv. - **phillips sonicare replacement brush head w**10K/yr+41.5%12.0% conv. - **philips diamondclean toothbrush**13K/yr+1.0%2.3% conv. - **diamond clean toothbrush head**10K/yr+13.1%11.3% conv. [**All search terms **](https://flapen.com/research/us/health-household/sonicare-6100-replacement-heads/search-terms)
## **Top sonicare 6100 replacement heads 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%$289K20%$578K30%$868K40%$1.2M1001K10K100K 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**Philips Sonicare W DiamondClean - Genuine Replacement Electric Toothbrush Heads White 3 Pack HX6063/65**Philips Sonicare**$31.15**4.8★42,147 rev](https://www.amazon.com/dp/B078BBZQWK) [2**Philips Sonicare W DiamondClean - Genuine Replacement Electric Toothbrush Heads Black 3 Pack HX6063/95**Philips Sonicare**$30.04**4.8★42,147 rev](https://www.amazon.com/dp/B078BXTF7N) [3**Philips Sonicare DiamondClean 9000 Electric Toothbrush - Sonic Toothbrush with App Pressure Sensor 12 Brushing Settings Replacement Reminder USB Charging Case Black & Rose Gold 2-Pack HX9912/71**Philips Sonicare**$211.17**4.6★247 rev](https://www.amazon.com/dp/B0FWLMV6NH) [4**Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush - Sonic Toothbrush with App Pressure Sensor 15 Brushing Settings Replacement Reminder USB Charging Travel Case Black Model HX9923/11**Philips Sonicare**$195.16**4.3★1,455 rev](https://www.amazon.com/dp/B0CM44GT41) [5**Philips Sonicare W DiamondClean - Genuine Replacement Electric Toothbrush Heads Black 2 Pack HX6062/95**Philips Sonicare**$25.08**4.8★42,147 rev](https://www.amazon.com/dp/B0795XF6MS)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Philips Sonicare DiamondClean 9000 Electric Toothbrush - Sonic Toothbrush with App Pressure Sensor 12 Brushing Settings Replacement Reminder USB Charging Case Black & Rose Gold 2-Pack HX9912/71**Philips Sonicare**$211.17**247 rev7mo ago](https://www.amazon.com/dp/B0FWLMV6NH) [**Philips Sonicare DiamondClean 9000 Electric Toothbrush - Sonic Toothbrush with App Pressure Sensor 12 Brushing Settings Replacement Reminder Charging Travel Case White & Pink 2-Pack HX9912/72**Philips Sonicare**$208.89**247 rev7mo ago](https://www.amazon.com/dp/B0FWM4HWBM) [**GottaShine Replacement Toothbrush Heads for Philips Sonicare Plaque Control Compatible with Click-on Electric Toothbrush Handles 12 Pack Black**GottaShine**$15.93**1,180 rev10mo ago](https://www.amazon.com/dp/B0FPQNWSYZ) [**Replacement Toothbrush Heads Compatible with Philips Sonicare Gentle & Effective Electric Tooth Brush Refill for Plaque Control 10 Pack (Black)**POSWEENR**$10.07**1,482 rev1y ago](https://www.amazon.com/dp/B0FB3YH6DC) [**AiNeedCare Sonicare Replacement Heads for Philips Sonicare - 12 Pack**AiNeedCare**$13.72**925 rev2y ago](https://www.amazon.com/dp/B0CY3DY8YL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**GottaShine Replacement Toothbrush Heads for Philips Sonicare Plaque Control Compatible with Click-on Electric Toothbrush Handles 12 Pack Black**GottaShine**$15.93**4.4★**▲ 132%**](https://www.amazon.com/dp/B0FPQNWSYZ) [**AiNeedCare Sonicare Replacement Heads for Philips Sonicare - 12 Pack**AiNeedCare**$13.72**4.4★**▲ 120%**](https://www.amazon.com/dp/B0CY3DY8YL) [**Philips Sonicare W DiamondClean - Genuine Replacement Electric Toothbrush Heads Black 3 Pack HX6063/95**Philips Sonicare**$30.04**4.8★**▲ 109%**](https://www.amazon.com/dp/B078BXTF7N) [**Philips Sonicare DiamondClean Standard Brush Heads 6-Pack (White) HX6066/30**PHILIPS**$47.92**4.6★**▲ 91%**](https://www.amazon.com/dp/B01FCZ8MNE) [**Philips Sonicare DiamondClean 9000 Electric Toothbrush - Sonic Toothbrush with App Pressure Sensor 12 Brushing Settings Replacement Reminder Charging Stand Travel Case Amethyst HX9911/91**Philips Sonicare**$182.17**4.2★**▲ 59%**](https://www.amazon.com/dp/B0B5VQSC32)
**~~View all trending →~~**
## **What buyers say about sonicare 6100 replacement heads**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Excellent quality product arrived on time”*
**Value For Money**15%
*“They are affordable”*
**Size-Overall**10%
*“Fit great”*
**Ease Of Cleaning**6%
*“Excellent Cleaning Performance”*
**Cleansing**5%
*“fresh and clean”*
**Advertised Vs Actual Product**5%
*“As advertised”*
**Tooth Brightening**4%
*“Whiter teeth”*
**Brush Quality**4%
*“Great brush”*
**Charging**4%
*“long lasting battery charge”*
**Soft Feel**3%
*“i love how soft”*
### **What buyers complain about **
**Durability**20%
*“Broke after 6 months”*
**Value For Money**11%
*“not worth the price”*
**Size-Overall**11%
*“Loose fitting”*
**Quality-Overall**11%
*“Cheap low quality”*
**Charging**8%
*“It would not charge”*
**Ease Of Cleaning**4%
*“it does not clean good at all”*
**Hard Feel**3%
*“Not soft”*
**Compatibility-Overall**3%
*“Not compatible with my Philips Sonicare”*
**Functionality-Overall**2%
*“App doesnt work”*
**Product Condition**2%
*“Used, non brand item”*
### **Top return reasons **
**Size-Overall**36%
**Value For Money**10%
**Functionality-Overall**10%
**Compatibility-Overall**8%
**Charging**7%
**Advertised Vs Actual Product**7%
**Defective Material/Parts**4%
**Product Condition**3%
**Color**3%
**Quality-Overall**2%
## **Common questions**
- **Is sonicare 6100 replacement heads profitable to sell on Amazon United States?**
- The niche generates $2.9M/yr across 28 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is +5.5%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the sonicare 6100 replacement heads niche?**
- 8 brands and 32 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in sonicare 6100 replacement heads?**
- Top complaints mined from reviews: Durability, Value For Money, Size-Overall. The return rate is 1.3%.
- **When does demand for sonicare 6100 replacement heads peak?**
- Demand peaks in Jan–Jun; the busiest month runs 6.9× the quietest.
- **What does it cost to enter the sonicare 6100 replacement heads niche?**
- Listings span $10.05–$320.44; the average listing price is $108.24 (sweet spot $15–$100). The average incumbent carries 9,381 reviews — the moat a new listing must climb.
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