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oral b smart clean 360 replacement heads
Skip itBrand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible12.6%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.9%return rate — above 5% kills the launch gate
Avg price
Great$21.89avg listing price — sweet spot $15–$100
Price range
Good$6.68–$34.91cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Market size
Okay$146K$146K/yr · 53K searches
Review moat
Bad9,898.37avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Growth
Bad-26.8%90-day search growth — must beat 0% to launch
Brand share
Bad97%top-5 brand share — brand-locked demand