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sonicare c1 replacement heads

Worth a look

Shows searches that convert (15.7% search→purchase), but a concentrated shelf (top 5 take 78% of clicks) keeps it on the watch list.

Market size 53Growth 29Conversion 97Competition 18Returns 95Price range 79Avg price 76Brand share 20Review moat 38Quality gap 42

Conversion

Incredible15.7%

search→purchase rate — share of searches ending in a sale

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Price range

Great$8.87–$39.24

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Great$15.33

avg listing price — sweet spot $15–$100

Market size

Good$347K

$347K/yr · 144K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,660

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+3.1%

90-day search growth — must beat 0% to launch

Brand share

Bad92%

top-5 brand share — brand-locked demand

Competition

Bad78%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, sonicare c1 replacement heads is a $347K/yr Amazon United States market (144K searches/yr). The top 5 brands hold 92% of demand. Verdict: Worth a look — 50/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

sonicare c1 replacement heads market data

Units sold / yr
20K–25K
avg 750–1,000/product
Revenue / yr
$307K–$383K
units × avg price
Conversion rate
15.7%
Avg BSR
#131
Page quality
0%
Prime
100%
Sponsored
92%
Out of stock
4.8%
Avg brand age
33 months
Avg seller age
170 days

Competition & brand share

The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 falling

Sellers

13

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

78%

Top 20: 100%

Open market

5%

  • Philips Sonicare52%
  • Boclengo20%
  • toptheway8%
  • Futulkyus8%
  • Aoremon4%
  • Joryama3%
  • Open — no brand owns it (2 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +3.1% search growth over the last 90 days.
5K4KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

Top sonicare c1 replacement heads search terms

  • philips sonicare replacement heads c125K/yr
  • sonicare c1 replacement heads19K/yr
  • philips sonicare c1 replacement heads16K/yr
  • c1 sonicare replacement heads16K/yr
  • sonicare replacement heads c115K/yr
  • phillips sonicare replacement brush head c115K/yr
  • phillips sonicare c1 replacement brush head7K/yr
  • philips sonicare c15K/yr
  • sonicare c15K/yr
  • philips sonicare toothbrush heads c15K/yr
All search terms

Top sonicare c1 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%$35K20%$69K30%$104K40%$139K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 12 tracked products in this niche — three views at once, no toggling.

What buyers say about sonicare c1 replacement heads

What buyers praise and complain about, mined from review topics.

What buyers love

Value For Money24%

“Great Value”

Size-Overall24%

“Perfect fit”

Quality-Overall15%

“Well constructed replacement heads at great price”

Advertised Vs Actual Product8%

“do the job”

Efficiency4%

“it works great”

Brush Quality3%

“Good quality, reasonably priced replacement brushes”

Cleansing3%

“Clean asf”

Durability3%

“Durable”

Compatibility-Overall2%

“They are a great replacement heads compatable with my Philips electric toothbrush”

Ease Of Use2%

“Useful and handy”

What buyers complain about

Hard Feel14%

“Bristles are too hard”

Quality-Overall13%

“Cheap, poor quality”

Size-Overall12%

“they dont fit flush”

Durability8%

“bristles fall out”

Ease Of Use7%

“difficult to use”

Value For Money6%

“way cheaper”

Compatibility-Overall5%

“Not compatible”

Strength5%

“These are not very strong in comparison to the name-brand models”

Ease Of Cleaning3%

“Does not provide nearly the same cleaning force”

Advertised Vs Actual Product2%

“False Advertising”

Top return reasons

Size-Overall58%
Compatibility-Overall17%
Advertised Vs Actual Product8%
Functionality-Overall4%
Quality-Overall2%
Hard Feel2%
Defective Material/Parts1%
Value For Money1%
Shape/Style1%
Brush Quality1%

Common questions

Is sonicare c1 replacement heads profitable to sell on Amazon United States?
The niche generates $347K/yr across 12 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +3.1%. Flapen's verdict: Worth a look (50/100).
How competitive is the sonicare c1 replacement heads niche?
8 brands and 13 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 92% of demand.
What do buyers complain about in sonicare c1 replacement heads?
Top complaints mined from reviews: Hard Feel, Quality-Overall, Size-Overall. The return rate is 0.9%.
When does demand for sonicare c1 replacement heads peak?
Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the sonicare c1 replacement heads niche?
Listings span $8.87–$39.24; the average listing price is $15.33 (sweet spot $15–$100). The average incumbent carries 2,660 reviews — the moat a new listing must climb.