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; repeated delays pushed shipping to 15 September onward.

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, with preorders scheduled to ship in October 2026.

Voice-first AI ring — capture thoughts by speaking, or whispering, into your hand; the first two batches have sold out and the current third preorder batch is scheduled to ship in September 2026.

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.

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.

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.

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; its Indiegogo launch is offering a $209 early-bird price.

Faith-centered titanium health ring combining seven biometric signals with user-scheduled prayer cues delivered through vibration and a cross-shaped LED; shipping begins October 13.

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.

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 launch is set for September 17 with December shipping planned.

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

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