Updated July 9, 2026 · 3 picks, ranked
Smart rings are the newest wearable category, and the market is really a three-way fight: Oura's polish and app depth, Samsung's Galaxy Ring ecosystem play, and RingConn's no-subscription value pitch. The right choice depends less on sensors — they're converging fast — and more on ongoing cost and which phone you carry.
This list ranks every current smart ring we track, with the subscription math spelled out and our buy-or-wait radar on each. Ring generations are young and moving quickly; buying weeks before a successor is a real risk in this category.
The smart ring standard since 2015: Oura has refined its ring sensors across four generations. The Ring 4's flattened LED array delivers more accurate SpO2 and heart rate data than previous generations, especially during sleep.
First-generation product — no release history to base predictions on
$299 with no subscription, ever: All health tracking features are included at no extra cost. No monthly membership required — all sleep staging, HRV trends, and health reports are free in the app.
First-generation product — no release history to base predictions on
No subscription, ever: Unlike Oura Ring which requires a $5.99/month membership for full features, the Galaxy Ring's complete feature set is included in the $399.99 purchase price with no recurring fees.
First-generation product — no release history to base predictions on
| Model | Price | Battery | Weight | Water res. | Timing |
|---|---|---|---|---|---|
| Oura Ring | $349 | ~7 d | 4 g | 100m | ⏰ Caution |
| RingConn Gen 2 | $299 | ~10 d | 3 g | IP68 | ⏰ Caution |
| Samsung Galaxy Ring | $399 | ~7 d | 3 g | 10ATM | ⏰ Caution |
Oura's full feature set requires a monthly membership; RingConn and Samsung's Galaxy Ring don't charge one. Over a typical three-year lifespan, the subscription can cost more than the ring itself — factor it into any comparison.
Rings, generally. They're more comfortable to sleep in, last about a week per charge, and their sleep-stage tracking is at least as good. What you give up is a screen, workouts and notifications.
Current-generation rings, ranked by release-cycle position, total cost of ownership including subscriptions, and tracking depth. Each pick's device page has the full timing breakdown.
Rankings are recomputed from our release-cycle data on every site update. See how we rate.