Wearables · Rings and bands
Oura vs Ultrahuman vs Whoop: the screenless wearables, compared
Three devices built around sleep, recovery and readiness rather than steps and notifications. How they differ on hardware, subscription, accuracy and what they are actually for, and which suits a health club member who trains four times a week and wants to know when to back off.
Updated September 2026 · Prices are UK RRP and need verification · Some links are affiliate links
Head to head
| Oura Ring 4 | Ultrahuman Ring Air | Whoop 5.0 | |
|---|---|---|---|
| Form | Titanium ring, 7 sizes, 6+ colours | Titanium ring, lighter, 5 colours | Fabric band, arm or wrist, or in garments |
| Hardware price | £349 to £499 | £329 | Included with subscription |
| Subscription | £5.99/mo (required for most features) | None | £199 to £359/yr by tier |
| Battery | 5 to 8 days | 4 to 6 days | 14 days; charges on wrist |
| Sleep and HRV | Best-in-class sleep staging; readiness score | Comparable sleep; recovery and movement indices | Strongest recovery model; strain score for training load |
| Workout tracking | Auto-detect, basic; pairs with Apple Health / Strava | Auto-detect, basic | Strain-focused; live HR; not a sports watch |
| Women’s health | Cycle insights, temperature trends; Natural Cycles integration | Cycle tracking | Cycle tracking |
| Extras | Stress, resilience, cardiovascular age, glucose via Dexcom Stelo (US) | PowerPlugs: Vitamin D, caffeine window, AFib (paid) | Healthspan, blood pressure insights (Advanced tier), Health Monitor |
| Lifting compatibility | Ring can scratch on bars; use a cover | Same | Band or bicep strap; no issue |
| Our read | The most polished; the subscription grates | Best value; software still catching up | For people who train hard and want load management |
Specifications and prices from manufacturer sites, September 2026. Features vary by region; verify before quoting.
What these devices are for
None of them is a sports watch. They measure you asleep and at rest, then tell you how much you have in the tank. For a club member the useful output is a single number each morning that says push, hold or rest, and a trend line that shows whether your programme is working. If you want pace, power and maps, see Garmin vs Apple Watch.
Rings versus band
Rings are invisible and socially easier, and Oura and Ultrahuman measure from the finger where the signal is strong. They scratch on barbells and kettlebells; a silicone cover or taking it off for lifting is normal. Whoop’s band goes on the bicep or in a sleeve, survives anything, and charges without coming off, which is why it dominates in gyms that programme hard.
The subscription question
Oura charges £5.99 a month on top of a £349+ ring; over three years that is roughly £560 to £710 total. Ultrahuman is £329 once. Whoop is subscription-only at £199 to £359 a year, so three years runs £600 to £1,080. Ultrahuman is the value buy, Oura the refined one, Whoop the specialist.
Accuracy
All three are good on resting heart rate, HRV trend and sleep duration, and all three are approximate on sleep stages. Treat scores as trends, not diagnoses. If a device flags a persistent change, that is a reason to see a GP, not to self-diagnose; our wearables and CGMs (not yet available) health page covers what the data does and does not mean.
FAQs
Common questions
Is Oura worth it without the subscription?
Without membership you get the three daily scores and little else. If you will not pay £5.99 a month, buy Ultrahuman instead.
Can I wear a smart ring while lifting?
Yes, but titanium scratches on knurled bars. Most lifters use a silicone ring cover or take it off; readiness data does not depend on capturing the lift.
Which is best for HRV?
All three trend HRV well overnight. Whoop’s recovery model uses it most directly for training decisions.