61
speed sensor
Worth a lookShows a sweet-spot price point ($20.72 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Great$20.72avg listing price — sweet spot $15–$100
Review moat
Great261avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.1★avg incumbent rating — lower means beatable quality
Price range
Great$8.23–$40.73cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Great60%top-5 brand share — no brand owns this niche
Market size
Good$824K$824K/yr · 1.0M searches
Competition
Good42%top-5 click share — leaders hold, buyers still browse
Conversion
Okay3.9%search→purchase rate — share of searches ending in a sale
Returns
Bad5.2%return rate — above 5% kills the launch gate
Growth
Bad-4.7%90-day search growth — must beat 0% to launch