Ultrahuman Ring AIR vs Ring PRO
The Ring PRO that shipped in 2026 is a bigger jump than the spec sheets suggest — roughly triple the battery and a new sensor. Here's whether it's worth about £90 more, with our 10% referral discount applied to both.
· Prices checked in a live basket that day
The 30-second answer
Buy the Ring AIR if you mainly want sleep, HRV and recovery tracking at the lowest price. It is lighter, cheaper, and captures the same core metrics the Ultrahuman app is built around.
Buy the Ring PRO if charging is the thing that makes you abandon wearables. Its headline upgrade is battery: up to 15 days against 5–6 real-world days on the AIR, extending to 45+ days with the PRO Charging Case currently included in the box. You also get a redesigned heart-rate sensor and a faster processor. It costs roughly £90 / $130 more.
What changed in 2026
If you're reading older comparisons — including an earlier version of this page — they're describing different hardware. Three things moved this year:
- The Ring PRO shipped. Pre-orders opened in March 2026, shipping began in May.
- Ultrahuman returned to the US. The brand was blocked from the US market during a patent dispute with Oura. US Customs and Border Protection cleared the Ring PRO for import on 24 March 2026.
- Battery roughly tripled. The PRO's 15-day figure, plus the charging case, is the biggest practical difference between the two rings — and the thing most comparison pages still have wrong.
Full spec comparison
| Feature | Ring AIR | Ring PRO |
|---|---|---|
| Shipping since | 2023 | May 2026 |
| Material | Titanium | Titanium unibody |
| Weight | ~2.4 g | ~3.0 g |
| Battery (quoted) | Up to 6 days | Up to 15 days |
| Battery with charging case | — | 45+ days |
| Charger | USB-C puck | PRO Charging Case, Qi + USB (£99/$99 alone, currently included) |
| Processor | Single core | Dual core, on-chip ML |
| Heart rate & HRV | Yes | Redesigned sensor architecture |
| SpO₂ monitoring | Nightly spot check | Continuous overnight |
| Skin temperature | Nightly baseline | Continuous 24/7 |
| On-ring storage | ~30 days | Up to 250 days |
| Emergency removal | — | ProRelease Technology |
| Bluetooth | BLE 5.0 | BLE 5.3 |
| Water resistance | 10 ATM | 10 ATM |
| Sizes | 5–14 | 5–14 |
| Finishes | Raw Titanium, Aster Black, Bionic Gold, Space Silver | Raw Titanium, Aster Black, Bionic Gold, Space Silver |
| Subscription for core tracking | None | None |
| Optional paid add-ons | Identical PowerPlugs on both — what actually costs money | |
Pricing with the 10% referral discount
These are figures from a live basket on 12 August 2026 using the referral link on this site. Ultrahuman changes regional pricing and runs seasonal offers, so treat them as a guide and confirm in your own basket before paying.
| Store | Ring AIR | Ring PRO |
|---|---|---|
| US (USD) | $349 → $314.10 | $479 → $431.10 |
| UK (GBP) | £329 → £296.10 | £429 → £386.10 |
| India (INR) | ₹28,499 → ₹23,939 | Check basket |
On the day we checked, the Indian store applied a larger combined discount of around 16% rather than the standard 10%. Regional offers come and go; the referral discount is the part that's always there. In other regions the same 10% applies at checkout in your local currency.
Who should buy the Ultrahuman Ring AIR?
The Ring AIR is still the right choice for most people. It delivers the full Ultrahuman experience — Sleep Index, Recovery Score, HRV trends, Circadian Rhythm tracking — at a lower price and in a lighter form factor.
- Anyone buying a first smart ring who isn't yet certain they'll stick with it
- Anyone switching from Oura mainly to escape the monthly subscription
- Apple Watch users who primarily want better sleep data
- Anyone who wears rings daily and wants the lightest option
- Anyone who charges devices habitually anyway and won't notice a weekly top-up
Who should buy the Ultrahuman Ring PRO?
The PRO's case is narrower than the price gap suggests, but it's genuinely strong for the right person.
- Frequent travellers. 15 days on the ring and 45+ with the case means most trips need no charger at all.
- Anyone with a history of abandoning wearables. The most common reason a sleep tracker stops producing data is that it's on a charger at bedtime. Tripling the battery attacks that directly.
- Cycle tracking users, where continuous skin temperature is meaningfully more accurate than nightly readings.
- Anyone who wants the current sensor generation and isn't price-sensitive.
If none of those describe you, the extra £90 buys convenience rather than materially better health data. Both rings feed the same app and produce the same scores.
The subscription question
Neither ring charges a subscription for core tracking — sleep, HRV, recovery, temperature and steps are included with the hardware, permanently. That remains the strongest argument against Oura, which requires a paid membership to see most of its insights.
The honest caveat that most comparison pages skip: Ultrahuman does now sell optional paid PowerPlugs — AFib Detection at £4.90/month, Tesla Sync at £6.90/month, Cycle & Ovulation Pro at £2.99/month. They're add-ons rather than a gate on the core product, and they cost the same on either ring. We've written up exactly what's free and what isn't.
Does the 10% discount apply to both?
Yes — to the Ring AIR, the Ring PRO, the charging case, Blood Vision and accessories. It's applied automatically when you click through; there's no code to type. Our referral code page explains the mechanics, and if you haven't sized yourself yet you can 3D print a sizing kit tonight rather than waiting for one in the post.