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.

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

Incredible$2.9M

$2.9M/yr · 315K searches

Returns

Great1.3%

return rate — above 5% kills the launch gate

Conversion

Great8.5%

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

Avg price

Good$108.24

avg listing price — sweet spot $15–$100

Competition

Okay56%

top-5 click share — leaders hold, buyers still browse

Quality gap

Okay4.5★

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

Bad9,380.75

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad95%

top-5 brand share — brand-locked demand

Signals High Price

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

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

Top-5 brand share

95%

Top 20: 100%

Top-5 click share

56%

Top 20: 89%

Open market

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.

Peak months: Jan, Jun · busiest ÷ quietest = 6.9×

Open Trend

Top sonicare 6100 replacement heads search terms

sonicare diamondclean62K/yr -1.6%2.4% conv.
philips sonicare diamondclean46K/yr -13.6%2.3% conv.
sonicare diamondclean replacement heads28K/yr +4.6%10.7% conv.
philips sonicare replacement heads w15K/yr +26.9%13.0% conv.
sonicare replacement heads black18K/yr -3.2%12.8% conv.
sonicare replacement heads w12K/yr +43.3%12.3% conv.
philips sonicare replacement heads black15K/yr -17.6%13.2% conv.
phillips sonicare replacement brush head w10K/yr +41.5%12.0% conv.
philips diamondclean toothbrush13K/yr +1.0%2.3% conv.
diamond clean toothbrush head10K/yr +13.1%11.3% conv.

All 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.

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

Philips Sonicare W DiamondClean - Genuine Replacement Electric Toothbrush Heads White 3 Pack HX6063/65

Philips Sonicare$31.154.8★42,147 rev

Philips Sonicare W DiamondClean - Genuine Replacement Electric Toothbrush Heads Black 3 Pack HX6063/95

Philips Sonicare$30.044.8★42,147 rev

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$211.174.6★247 rev

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$195.164.3★1,455 rev

Philips Sonicare W DiamondClean - Genuine Replacement Electric Toothbrush Heads Black 2 Pack HX6062/95

Philips Sonicare$25.084.8★42,147 rev

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$211.17247 rev

7mo ago

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$208.89247 rev

7mo ago

GottaShine Replacement Toothbrush Heads for Philips Sonicare Plaque Control Compatible with Click-on Electric Toothbrush Handles 12 Pack Black

GottaShine$15.931,180 rev

10mo ago

Replacement Toothbrush Heads Compatible with Philips Sonicare Gentle & Effective Electric Tooth Brush Refill for Plaque Control 10 Pack (Black)

POSWEENR$10.071,482 rev

1y ago

AiNeedCare Sonicare Replacement Heads for Philips Sonicare - 12 Pack

AiNeedCare$13.72925 rev

2y ago

What buyers say about sonicare 6100 replacement heads

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

What buyers love

Quality-Overall19%

“Excellent quality product arrived on time”

Value For Money15%

“They are affordable”

Size-Overall10%

“Fit great”

Ease Of Cleaning6%

“Excellent Cleaning Performance”

Cleansing5%

“fresh and clean”

Advertised Vs Actual Product5%

“As advertised”

Tooth Brightening4%

“Whiter teeth”

Brush Quality4%

“Great brush”

Charging4%

“long lasting battery charge”

Soft Feel3%

“i love how soft”

What buyers complain about

Durability20%

“Broke after 6 months”

Value For Money11%

“not worth the price”

Size-Overall11%

“Loose fitting”

Quality-Overall11%

“Cheap low quality”

Charging8%

“It would not charge”

Ease Of Cleaning4%

“it does not clean good at all”

Hard Feel3%

“Not soft”

Compatibility-Overall3%

“Not compatible with my Philips Sonicare”

Functionality-Overall2%

“App doesnt work”

Product Condition2%

“Used, non brand item”

Top return reasons

Size-Overall36%

Value For Money10%

Functionality-Overall10%

Compatibility-Overall8%

Charging7%

Advertised Vs Actual Product7%

Defective Material/Parts4%

Product Condition3%

Color3%

Quality-Overall2%

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.