Smart Rings / Oura
Oura Ring 5 (2026)
The best sleep tracking on a finger, rented to you at $5.99 a month forever.
Overall score 7.1/10
Pros
- + Genuinely the smallest ring here — 40% smaller than Ring 4 and the first Oura that does not read as a gadget on the hand
- + Sleep staging remains the reference the rest of the category is measured against
- + iOS and Android get identical features, which Samsung cannot say
- + 100m water rating and a new PVD coating Oura claims is more scratch resistant than Ring 4's
Cons
- − $5.99/month forever: the real three-year price of the base finish is $608.97, more than triple a RingConn Gen 2 Air
- − Sizes 6-13 only — Ring 4 went 4 to 15, so this generation silently dropped the smallest and largest fingers
- − The premium finishes are a $100 tax for the same electronics: Stealth, Brushed Silver, Gold and Deep Rose are all $499
- − Warranty explicitly excludes scratches and dents, and the battery is listed as a non-covered consumable
- − The charger is keyed to your ring size, so it is not a part you can borrow or generically replace
Oura Ring 5 (2026) review: what the specs say
The best sleep tracking on a finger, rented to you at $5.99 a month forever. At $399, Oura's 2026 model sits at the premium end of the category — the smart Rings we compare run from $149.99 to $479. It scores 7.1/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Sleep Tracking at 9.5/10 — sleep staging depth, overnight accuracy and how usable the morning report is. The weakest is Subscription Freedom at 2.0/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: $5.99/month forever: the real three-year price of the base finish is $608.97, more than triple a RingConn Gen 2 Air; and sizes 6-13 only — Ring 4 went 4 to 15, so this generation silently dropped the smallest and largest fingers. Every specification on this page comes from Oura's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| Battery Life (claimed) | 9 days |
| Battery, In Practice | Oura's own claim is a range, 'up to 6-9 days depending on ring size and usage' — the small sizes sit at the bottom of it because the battery is physically smaller. TechCrunch's reviewer was at roughly 25% after five days of continuous wear. Charging takes about 80 minutes. |
| Subscription | Required in practice. $5.99/month or $69.99/year after one free month. Oura's own FAQ: without a membership 'your Oura Ring and Oura App will still function, but the insights, personal health data, and benefits you receive will be much more limited' — you keep the three headline scores and lose the 50+ metrics behind them. |
| 3-Year Cost of Ownership | 608.97 $ |
| Sizes Offered | US 6-13, no half sizes. Ring 4 covered 4-15; Oura told TechCrunch the smaller form factor is harder to manufacture at the extremes, so small and large fingers lose the option entirely. |
| Sizing Kit | Free plastic sizing kit ships before the ring. Oura instructs you to wear the sizer for at least 24 hours including overnight, so the kit round trip adds roughly a week before the ring is even ordered. |
| Returns & Size Exchange | Oura does not publish a return window on its warranty page. The 1-year limited warranty explicitly excludes 'normal wear and tear, such as scratches and dents caused by everyday handling' and lists batteries as a non-covered consumable part. |
| Measured vs Inferred | Green and infrared LEDs for continuous heart rate and HRV; red and infrared LEDs for blood oxygen, which Oura reports as an overnight figure rather than an all-day continuous trace; NTC skin-temperature sensor; accelerometer. Readiness, Stress, Resilience and Health Radar are derived scores computed from those four signals, not separate measurements. |
| FDA Clearance | None published for the Ring 5 or its app features — Oura markets the whole product as general wellness. The Blood Pressure Signals feature announced alongside the Ring 5 is not a cuff-equivalent blood-pressure measurement. |
| Water Rating | IP68 and water resistant to 100m/328ft; Oura says it is not for scuba diving |
| Phone Support | iOS and Android, full feature parity |
| Charger & Data Export | Proprietary size-specific dock in the box plus a USB-C cable — a charger made for one ring size does not fit another, so a replacement has to match your ring. Export: not published as a one-click history download; Oura documents a personal-access-token Cloud API that third-party tools use to pull history. |
| Connectivity | Bluetooth Low Energy (version not published by Oura) |
| Material | Titanium exterior with a seamless titanium interior and a new PVD coating; Oura says it is 40% smaller than Ring 4 |
| Warranty | 12 months |
Compare Oura Ring 5 (2026) With
Cheaper Alternative
RingConn Gen 3 (2026) — $349.00
Premium Alternative
Ultrahuman Ring PRO (2026) — $479.00