sonicare c3 replacement heads
Worth a lookShows low returns (0.8%), but brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list.
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Avg price
Incredible$26.28avg listing price — sweet spot $15–$100
Conversion
Great11.4%search→purchase rate — share of searches ending in a sale
Price range
Great$10.40–$49.40cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Great$1.1M$1.1M/yr · 367K searches
Growth
Okay+13.4%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad13,237.67avg incumbent reviews — the moat a new listing must climb
Competition
Bad77%top-5 click share — a locked-up shelf
Brand share
Bad95%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, sonicare c3 replacement heads is a $1.1M/yr Amazon United States market (367K searches/yr). The top 5 brands hold 95% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
sonicare c3 replacement heads market data
- Units sold / yr
- 50K–60K
- avg 3,000–4,000/product
- Revenue / yr
- $1.3M–$1.6M
- units × avg price
- Conversion rate
- 11.4%
- Avg BSR
- #149
- Page quality
- 0%
- Prime
- 92%
- Sponsored
- 67%
- Out of stock
- 0.0%
- Avg brand age
- 42 months
- Avg seller age
- 167 days
Competition & brand share
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.Brands
7 falling
Sellers
20
Top-5 brand share
95%
Top 20: 100%
Top-5 click share
77%
Top 20: 100%
Open market
2%
- Philips Sonicare64%
- Aoremon13%
- Tiosdurfego8%
- Brightdeal6%
- PHILIPS4%
- GERAGER3%
- Open — no brand owns it (1 brand, 2%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +13.4% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top sonicare c3 replacement heads search terms
- sonicare c3 replacement heads59K/yr
- philips sonicare replacement heads c359K/yr
- c3 sonicare replacement brush heads43K/yr
- phillips sonicare replacement brush head c333K/yr
- sonicare replacement heads c336K/yr
- philips sonicare c3 replacement heads25K/yr
- sonicare c318K/yr
- philips sonicare c315K/yr
- phillips sonicare c3 replacement brush head12K/yr
- philips sonicare toothbrush heads c39K/yr
Top sonicare c3 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.
All 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Philips Sonicare C3 Two-in-One - Genuine Replacement Electric Toothbrush Heads White 2 Pack HX9042/65
Philips Sonicare$26.184.8★28,326 rev
Philips Sonicare C3 Two-in-One Genuine Replacement Electric Toothbrush Heads for Deep Plaque Removal and Whitening 4 Pack One Year Supply White HX9044/65
Philips Sonicare$44.544.8★28,326 rev
Philips Sonicare C3 Two-in-One Genuine Replacement Electric Toothbrush Heads for Deep Plaque Removal and Whitening 4 Pack One Year Supply Black HX9044/95
Philips Sonicare$38.404.8★28,326 rev
Aoremon Replacement Toothbrush Heads for Philips Sonicare C3 Premium Plaque Control HX9044/65 G3 Gum Care HX9054/65 W3 4100 5100 6100 7500 C1 C2 Flexcare Diamondclean HealthyWhite 6 Count White
Aoremon$14.284.4★2,280 rev
Replacement Toothbrush Heads for Philips Sonicare Replacement Heads C3 A3 4100 Electric Replacement Brush Heads for Phillips Sonicare Toothbrush C3 4100 A3 W for Philips Sonic Care Brush 12 Pack
Tiosdurfego$15.024.5★83 rev
Newest
by launch date
Aoremon Toothbrush Replacement Heads for Sonciare C3 Toothbrush Heads fit for Philips Sonicare Click On Handles ProtectiveClean DiamondClean FlexCare HealthyWhite G3 W3 4100 5100 6100 10 Count White
Aoremon$17.922,280 rev
Replacement Toothbrush Heads for Philips Sonicare Replacement Heads C3 A3 4100 Electric Replacement Brush Heads for Phillips Sonicare Toothbrush C3 4100 A3 W for Philips Sonic Care Brush 12 Pack
Tiosdurfego$15.0283 rev
Cavzru Replacement Toothbrush Heads for Philips Sonicare C3 C2 G3 A3 W2 W3 6 Pack Soft Silicone Brush Heads for HX9054 4100 5100 6100 7500 Compatible with Snap-On Handles Anti-Collision Design
Cavzru$10.40399 rev
Philips Sonicare C3 Premium Plaque Defence Original Replacement Toothbrush Heads White 4-Pack HX9044/87
PHILIPS$49.40312 rev
GERAGER Replacement Toothbrush Heads Compatible with Philips Sonicare and More Click-on Handles C3 G3 W3 C2 G2 Brush Heads 10 Pack White
GERAGER$11.89558 rev
Trending
90-day click momentumAoremon Toothbrush Replacement Heads for Sonciare C3 Toothbrush Heads fit for Philips Sonicare Click On Handles ProtectiveClean DiamondClean FlexCare HealthyWhite G3 W3 4100 5100 6100 10 Count White
Aoremon$17.924.4★
Replacement Toothbrush Heads for Philips Sonicare Replacement Heads C3 A3 4100 Electric Replacement Brush Heads for Phillips Sonicare Toothbrush C3 4100 A3 W for Philips Sonic Care Brush 12 Pack
Tiosdurfego$15.024.5★
BrightDeal Replacement Heads for Philips Sonicare ProtectiveClean 4100 5100 6100 DiamondClean 9500 ExpertClean 7500 FlexCare HealthyWhite Electric Sonic Toothbrush C3 G3 W3 C2 G2 Brush White 6 Pack
Brightdeal$13.844.4★
Philips Sonicare C3 Two-in-One Genuine Replacement Electric Toothbrush Heads for Deep Plaque Removal and Whitening 4 Pack One Year Supply Black HX9044/95
Philips Sonicare$38.404.8★
Philips Sonicare C3 Premium Plaque Defence Original Replacement Toothbrush Heads White 4-Pack HX9044/87
PHILIPS$49.404.7★
What buyers say about sonicare c3 replacement heads
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent value”
“Fit great”
“Just as good as the name brand”
“As advertised”
“Didnt break it”
“Perfect brush head for the brush”
“Ease of use”
“List the compatibility correctly to avoid problems”
“Soft”
“Feels like it does a good job at cleaning”
What buyers complain about
“They are smaller”
“not good value for money”
“Bad Quality - You'll be spitting out plastic”
“Not soft at all”
“Fell Apart Immediately”
“These did NOT work for the Philips Sonicare C3”
“The picture is deceiving”
“Large brush head due to unnecessary rubber coating further reduces cleaning ability”
“I really cant use them”
“these feel firm”
Top return reasons
Common questions
- Is sonicare c3 replacement heads profitable to sell on Amazon United States?
- The niche generates $1.1M/yr across 12 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +13.4%. Flapen's verdict: Worth a look (54/100).
- How competitive is the sonicare c3 replacement heads niche?
- 7 brands and 20 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 95% of demand.
- What do buyers complain about in sonicare c3 replacement heads?
- Top complaints mined from reviews: Size-Overall, Value For Money, Quality-Overall. The return rate is 0.8%.
- When does demand for sonicare c3 replacement heads peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the sonicare c3 replacement heads niche?
- Listings span $10.40–$49.40; the average listing price is $26.28 (sweet spot $15–$100). The average incumbent carries 13,238 reviews — the moat a new listing must climb.