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oxygen concentrator
Skip itPrices mostly outside the sweet spot ($6.83–$778.58) — this niche doesn't clear our bar today.
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Review moat
Good507avg incumbent reviews — the moat a new listing must climb
Competition
Good43%top-5 click share — leaders hold, buyers still browse
Returns
Good2.3%return rate — above 5% kills the launch gate
Market size
Good£286K£286K/yr · 123K searches
Avg price
Okay£190.85avg listing price — sweet spot $15–$100
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Growth
Bad-11.1%90-day search growth — must beat 0% to launch
Conversion
Bad1.2%search→purchase rate — share of searches ending in a sale
Price range
Bad£6.83–£778.58cheapest to priciest tracked listing — scored on the share inside $15–$100