Is philips sonicare diamondclean 9000 profitable to sell on Amazon United Kingdom?

The niche generates £363K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -19.1%. Flapen's verdict: Skip it (38/100).

How competitive is the philips sonicare diamondclean 9000 niche?

2 brands and 89 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in philips sonicare diamondclean 9000?

Top complaints mined from reviews: Durability, Charging, Battery Life. The return rate is 3.3%.

When does demand for philips sonicare diamondclean 9000 peak?

Demand peaks in Nov–Dec; the busiest month runs 2.6× the quietest.

What does it cost to enter the philips sonicare diamondclean 9000 niche?

Listings span £64.62–£212.92; the average listing price is £138.60 (sweet spot $15–$100). The average incumbent carries 2,021 reviews — the moat a new listing must climb.

philips sonicare diamondclean 9000

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Avg price

Good£138.60

avg listing price — sweet spot $15–$100

Conversion

Good4.6%

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

Market size

Good£363K

£363K/yr · 57K searches

Returns

Okay3.3%

return rate — above 5% kills the launch gate

Review moat

Okay2,020.62

avg incumbent reviews — the moat a new listing must climb

Price range

Bad£64.62–£212.92

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

Competition

Bad78%

top-5 click share — a locked-up shelf

Growth

Bad-19.1%

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

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals High Price

According to Flapen's Amazon United Kingdom niche tracking, philips sonicare diamondclean 9000 is a £363K/yr Amazon United Kingdom market (57K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 38/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

philips sonicare diamondclean 9000 market data

Units sold / yr: 2K–2K; avg 100–250/product
Revenue / yr: £208K–£277K; units × avg price
Conversion rate: 4.6%
Avg BSR: #33
Page quality: 0%
Prime: 100%
Sponsored: 62%
Out of stock: 0.0%
Avg brand age: 43 months
Avg seller age: 154 days

Competition & brand share

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

Brands

2 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

78%

Top 20: 100%

Open market

PHILIPS98%
SURI2%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 77 weeks — -19.1% search growth over the last 90 days.

Peak months: Nov, Dec · busiest ÷ quietest = 2.6×

Open Trend

Top philips sonicare diamondclean 9000 search terms

sonicare 90009K/yr -2.2%4.7% conv.
philips sonicare diamondclean 90008K/yr -2.3%5.0% conv.
philips sonicare 9900 prestige7K/yr -8.0%1.5% conv.
philips sonicare 90006K/yr -6.0%4.6% conv.
philips sonicare diamondclean6K/yr -17.2%3.0% conv.
sonicare 99004K/yr -0.4%4.0% conv.
philips sonicare toothbrush 90004K/yr -21.1%5.2% conv.
sonicare diamondclean5K/yr -69.7%2.8% conv.
philips sonicare 99003K/yr -15.3%2.9% conv.
sonicare diamondclean 90002K/yr +35.4%4.0% conv.

All search terms

Top philips sonicare diamondclean 9000 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 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Philips Sonicare DiamondClean 9000 Series Power Electric Toothbrush Special Edition - Sonic Brush Dark Blue 1 X C3 Premium Plaque Control Brush Head (Model HX9911/88)

PHILIPS£101.044.1★4,003 rev

Philips Sonicare DiamondClean Prestige 9900 - Sonic Electric Toothbrush with 1x A3 Premium All-in-One Brush Head and Charging Case in Midnight Blue (Model HX9992/12)

PHILIPS£181.424.0★467 rev

Philips Sonicare DiamondClean 9000 Electric Toothbrush Sonic Toothbrush with App Pressure Sensor 4 Brushing Modes 3 Intensity Levels Charging Glass Black & Rosegold Dual Pack Model HX9914/57

PHILIPS£131.504.0★4,083 rev

Philips Hx9911/84 Sonicare Diamond Clean 9000 Series Power Electric Tooth Brush Pink 1 Count Pack of 1

PHILIPS£100.014.1★4,003 rev

Philips Sonicare DiamondClean 9000 Electric Toothbrush Special Edition Sonic Toothbrush with App Pressure Sensor 4 Brushing Modes 3 Intensity Levels Charging Stand Aquamarine Model HX9911/89

PHILIPS£116.624.1★4,003 rev

Newest

by launch date

SURI 2.0 New Sonic Electric Toothbrush with Pressure Sensor | 1 Month+ Battery| Electric Toothbrush Adults | Sonic Toothbrushes | Green

SURI£64.622,302 rev

11mo ago

Philips Sonicare DiamondClean 9900 Prestige Electric Toothbrush with SenseIQ Technology and App 5 Brushing Modes 3 Intensity Levels Charging Travel Case Black Model HX9992/43

PHILIPS£212.92467 rev

1y ago

Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush Sonic Toothbrush with App Pressure Sensor Brush Head Detection 4 Brushing Modes and 3 Intensity Levels Black Model HX9918/89

PHILIPS£173.21359 rev

2y ago

Philips Sonicare DiamondClean 9000 Electric Toothbrush - Sonic Toothbrush with App Pressure Sensor 4 Brushing Modes 3 Intensity Levels Charging Stand USB Travel Case White Model HX9911/63

PHILIPS£123.402,698 rev

4y ago

Philips Sonicare DiamondClean 9000 Series Power Electric Toothbrush Special Edition - Sonic Brush Dark Blue 1 X C3 Premium Plaque Control Brush Head (Model HX9911/88)

PHILIPS£101.044,003 rev

4y ago

What buyers say about philips sonicare diamondclean 9000

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

What buyers love

Oral Hygiene35%

“it cleans my teeth so much better”

Ease Of Cleaning10%

“Easy to use thorough clean”

Quality-Overall5%

“Good quality”

Value For Money5%

“Great value great product would recommend”

Tooth Sensitivity4%

“it cleans my teeth so much better”

Breathability2%

“Leaves fresh breath”

Battery Life2%

“long battery life”

Ease Of Use2%

“Easy to use”

Vibration/Speed Control2%

“you still get the vibration reminder”

Charging2%

“charges quick when its needed”

What buyers complain about

Durability18%

“Doesnt last”

Charging15%

“Doesnt charge”

Battery Life9%

“Disappointing Battery Life”

Oral Hygiene8%

“First toothbrush developed a fault inside of a few months”

Value For Money7%

“way too expensive”

Quality-Overall6%

“poor quality product”

Touch/Button Controls3%

“On/off button broke”

Functionality-Overall2%

“It developed a fault in the middle of the night and wouldn't switch off”

Vibration/Speed Control2%

“Beware the poor quality where the vibration will change rapidly over time due to the motor/build/ I dont know just not staying how it came”

Design-Overall2%

“terrible design, broken after 2 years”

Top return reasons

Charging31%

Functionality-Overall11%

Defective Material/Parts10%

Vibration/Speed Control6%

Oral Hygiene5%

Product Condition5%

Value For Money4%

Battery Life3%

Color2%

Advertised Vs Actual Product2%

Common questions

Is philips sonicare diamondclean 9000 profitable to sell on Amazon United Kingdom?: The niche generates £363K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -19.1%. Flapen's verdict: Skip it (38/100).
How competitive is the philips sonicare diamondclean 9000 niche?: 2 brands and 89 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in philips sonicare diamondclean 9000?: Top complaints mined from reviews: Durability, Charging, Battery Life. The return rate is 3.3%.
When does demand for philips sonicare diamondclean 9000 peak?: Demand peaks in Nov–Dec; the busiest month runs 2.6× the quietest.
What does it cost to enter the philips sonicare diamondclean 9000 niche?: Listings span £64.62–£212.92; the average listing price is £138.60 (sweet spot $15–$100). The average incumbent carries 2,021 reviews — the moat a new listing must climb.