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390 watch battery
Skip itPrices mostly outside the sweet spot ($4.09–$9.95) — this niche doesn't clear our bar today.
Conversion
Incredible17.2%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.6%return rate — above 5% kills the launch gate
Review moat
Okay1,913.9avg incumbent reviews — the moat a new listing must climb
Growth
Okay+15.5%90-day search growth — must beat 0% to launch
Brand share
Bad91%top-5 brand share — brand-locked demand
Market size
Bad$86K$86K/yr · 81K searches
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Avg price
Bad$6.22avg listing price — sweet spot $15–$100
Competition
Bad82%top-5 click share — a locked-up shelf
Price range
Bad$4.09–$9.95cheapest to priciest tracked listing — scored on the share inside $15–$100