48
heart rate monitor chest strap
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Avg price
Great£58.44avg listing price — sweet spot $15–$100
Price range
Great£18.75–£118.45cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Great£1.1M£1.1M/yr · 342K searches
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Conversion
Good5.5%search→purchase rate — share of searches ending in a sale
Returns
Good2.8%return rate — above 5% kills the launch gate
Competition
Bad71%top-5 click share — a locked-up shelf
Growth
Bad-4.3%90-day search growth — must beat 0% to launch
Review moat
Bad7,005avg incumbent reviews — the moat a new listing must climb
Brand share
Bad100%top-5 brand share — brand-locked demand
Signals High Price