45
Oral B Smart 1500 Replacement Brush Heads
Skip itBrand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible14.4%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.9%return rate — above 5% kills the launch gate
Avg price
Great$17.39avg listing price — sweet spot $15–$100
Price range
Great$7.64–$39.57cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay$178K$178K/yr · 71K searches
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-8.9%90-day search growth — must beat 0% to launch
Review moat
Bad14,925.57avg incumbent reviews — the moat a new listing must climb
Brand share
Bad95%top-5 brand share — brand-locked demand