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The Circular Smart Ring™️
A smart ring that provides comprehensive 24/7 sleep tracking with nightly quality scores and personalized recommendations to improve sleep quality and boost daytime energy
last checked Jul 15, 2026 · HTTP 403
CohortClass of 2026What it is
A smart ring that provides comprehensive 24/7 sleep tracking with nightly quality scores and personalized recommendations to improve sleep quality and boost daytime energy. The device delivers detailed sleep metrics, progress graphs, and actionable insights to help users optimize their sleep habits over time.
HTTP liveness
10 probes since May 23May 23Jul 15
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- May 23, 2026First probe — unverifiedCloudflare block
Moat
Data moat
weak
weak · 0.80 confidence
Text classification · Jun 2026
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Pulse Indexobserved activity
10 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2026weekly
567 products launched in 2026 · 100% still active
567 active0 sunset
Still active
100%
Median lifespan
4.9y