Oura
Oura Ring 5
Oura’s smallest current ring, with mature software, broad integrations and a required membership for the full experience.
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Product catalogue
17 researched models. Prices and availability are dated; unknown stays unknown.
Oura
Oura’s smallest current ring, with mature software, broad integrations and a required membership for the full experience.
View evidence and fitOura
The established titanium Oura with a wider size range than Ring 5 and the same membership-led app.
View evidence and fitOura
Ring 4 sensing in a thicker, heavier zirconia-ceramic exterior.
View evidence and fitRingConn
A long-battery, subscription-free flagship with vibration alerts and vascular trend insights.
View evidence and fitRingConn
A thin titanium ring with long battery life, charging case and apnea-pattern monitoring.
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Lower-cost stainless-steel RingConn with core tracking but no apnea feature or charging case.
View evidence and fitUltrahuman
A lightweight titanium ring with broad wellness insights and no mandatory data subscription.
View evidence and fitUltrahuman
A longer-battery Ultrahuman bundled with a portable charging case and sold on a shipping timeline.
View evidence and fitSamsung
A Galaxy-phone-first ring feeding Samsung Health without a ring subscription.
View evidence and fitAmazfit
A Zepp-ecosystem ring with only three sizes and four-day claimed battery life.
View evidence and fitCircular
A subscription-free titanium ring centred on ECG recordings and broad wellness features.
View evidence and fitLuna
A no-subscription ring with multi-day battery and portable charging-case option.
View evidence and fitOla Esporte
A budget marketplace ring advertised for sleep, heart-rate, blood-oxygen and activity tracking, with material documentation conflicts.
View evidence and fitUnbranded
A budget display ring advertised for sleep, heart-rate, blood-oxygen and multi-sport tracking, sold without a stable consumer brand.
View evidence and fitMovano Health
A women-first open-design ring whose maker paused new orders and shipments in April 2026.
View evidence and fitVelia
A very light Swiss-designed beta ring in only four sizes.
View evidence and fitAcer
A subscription-free titanium ring with documented hardware but limited market availability.
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