Smart rings, compared

The world's smallest smart ring — roughly 40% smaller, week-long battery and new blood-pressure signals.

Galaxy-tethered ring for sleep, activity and cycle tracking, and the first smart ring cleared by the FDA for over-the-counter sleep-apnea detection, arriving in a fall 2026 update.

Subscription-free flagship answering Oura with a 15-day battery, redesigned heart-rate sensing and the Jade real-time biointelligence engine; now shipping after repeated production delays.

Titanium third-gen ring adding vascular and blood-pressure insights plus on-finger vibration alerts, keeping the 14-day battery and no subscription.

Minimalist single-button ring with a mic that captures voice memos transcribed privately on your phone — no health tracking.

Titanium ring built around an on-finger single-lead ECG with AFib detection and PPG-based blood-pressure estimation.

Zirconia-ceramic companion ring that discreetly controls Even Realities' G2 glasses while tracking heart rate, HRV, SpO₂, temperature, activity and sleep, with a four-day battery.

Cuffless smart ring that takes direct systolic and diastolic blood-pressure readings from an optical finger sensor without calibration, now shipping finished hardware through an Early Access beta-app option.

Voice-first AI ring — capture thoughts by speaking, or whispering, into your hand; the first five batches have sold out and the current sixth preorder batch is scheduled to ship in January 2027.

China-only smart ring watch pairing a tiny digital display with heart-rate, SpO₂ and temperature tracking, activity and sleep analysis, and vibration alerts.

Titanium note-taking ring from Gyges Labs, the maker of Halliday's glasses — a single button records conversations that the app turns into speaker-labelled transcripts and summaries across 100+ languages; launch stock now ships within 14 days.

Japan-made titanium health ring with a 5.19mm-wide body, up to 10-day battery and subscription-free sleep, stress, heart-rate, SpO₂ and temperature tracking; late pledges target May–July 2027 delivery.

Ceramic gesture ring for controlling phones, computers, TVs and smart glasses, with heart-rate, SpO₂, activity and sleep tracking; its funded Kickstarter targets first-batch shipping in late November.

Wide-band Bluetooth controller ring using discreet thumb taps and swipes for cursor, media, presentation and smart-glasses control across paired devices; more than 5,000 units have shipped.

Sub-3g zirconia voice-capture ring that starts recording with a double-tap, transcribes on a paired phone, sorts speech into notes, tasks and reminders, and delivers haptic alerts; its Kickstarter is live with December shipping planned.

Subscription-free titanium wellness ring combining heart rate, SpO₂, temperature, sleep and activity tracking with one-minute non-invasive AI glucose-status scans; orders are live with a free sizing kit.

Ceramic health ring pairing heart-rate, SpO₂ and temperature tracking with on-finger vibration alerts, touch-and-gesture phone controls and a shake-to-call SOS action.

Titanium voice-input ring with touch, haptic and LED controls for dictation, text editing and delegating tasks to AI agents through a companion app; first-batch Founder Edition preorders are due to ship in January.

Subscription-free stainless-steel wellness ring tracking heart rate, HRV, blood oxygen, skin-temperature trends, sleep, stress and activity, with optional vibration alerts, up to seven days of battery and 50m water resistance.

Titanium follow-up to Muse's much-delayed first ring, promising cuffless blood pressure, AFib and sleep-apnea detection, NFC payments and 100m water resistance; Muse's live dashboard now records initial shipments and deliveries.

Now-shipping faith-centered titanium health ring combining seven biometric signals with user-scheduled prayer cues delivered through vibration and a cross-shaped LED.

Subscription-free stainless-steel health ring tracking sleep, heart rate, HRV, SpO₂, temperature and activity with four-to-six-day battery life; preorders opened 16 October ahead of a 1 December launch.

Indonesian and Brazilian regulatory filings link Garmin's Cirqa name to a ten-model hardware family consistent with ring sizing, though launch details remain unconfirmed.

Titanium ring pairing a press-to-talk button and microphone with AI-agent requests and sleep, heart-rate, HRV, temperature and activity tracking; a waitlist is open for its small first run.

Glasses-control ring announced alongside Rokid Color, pairing swipe, tap, rotation and finger-snap gestures with heart-rate, skin-temperature, blood-oxygen and sleep monitoring.

Stainless-steel health ring pairing round-the-clock heart rate, SpO₂, temperature and sleep tracking with screenless vibration alerts and a subscription-free app.

Sleep-focused titanium smart ring with a sapphire-glass face, PPG sensing and promised HRV, resting-heart-rate and temperature-trend tracking; price, weight and full specifications are due at ISHO's October 29 launch.

Ceramic smart ring combining heart-rate, activity and sleep tracking with phone-free contactless payments; KSIX lists multiple sizes as coming soon.