| Manufacturer | Ultrahuman |
|---|---|
| Type | Smart ring |
| Series | Ultrahuman Ring PRO (third generation) |
| Released | Approx. early May 2026 (Kickstarter launch 4 May; first shipments reported from 30 April) |
| Price | £429 / $479 retail. Kickstarter tiers ran from $299 to $449 |
| Predecessor | Ultrahuman Ring AIR |
| Sizes | 5 to 14 |
| Colours | Bionic Gold, Space Silver, Aster Black, Raw Titanium. Charger in black and gold |
| Subscription | None. One purchase, no recurring fee |
| Warranty | 1 year |
Specifications and features as at launch.
Expert opinion | What’s new | Specifications | Battery life | Features | Further reading
Expert opinion
The Ultrahuman Ring Pro delivers detailed sleep, recovery, stress and activity insights, with an app that tracks long term trends without requiring a subscription for core features. After extended wear, battery life reached around 12 to 15 days, although power saving mode reduces some tracking functionality. The trade off is comfort: its bulkier profile and noticeable inner sensor housing make it less unobtrusive during exercise and overnight wear. Accuracy is mixed. Testing against a chest strap found heart rate discrepancies during movement and at rest, while another extended test found readings improved after a two week calibration period. Its standout quality is the combination of long battery life, extensive health data and accessible core insights without a compulsory monthly fee. Some specialist features require additional payment.
For health conscious users, it provides a useful picture of sleep consistency, recovery trends and physiological stress, helping reveal how daily habits affect wellbeing. However, abundant metrics do not guarantee accurate measurements or actionable insights. Heart rate tracking is less dependable during exercise than a chest strap, and the dense app can make it difficult to distinguish meaningful signals from interesting but less useful data. Its long battery life is exceptional, but comes with a bulkier design. It is a capable everyday health tracker, rather than a precise tool for managing athletic performance.
What’s new versus Ultrahuman Ring AIR
Hardware
- Battery up to 15 days, against 4 to 6 days for Ring AIR; about 12 days in Turbo Mode and more than 15 in Chill Mode
- PRO Charger case: up to 45 days between wall charges, Qi charging, speaker, haptics and LED, and Find My Case
- Titanium unibody build, against the two-component build of Ring AIR
- Redesigned PPG optical configuration for better signal during sleep and recovery
- Dual-core processor with on-chip machine learning, against single core
- On-ring storage of up to 250 days, against 4 days, and up to a year on the case
- ProRelease cut zone, so the ring can be removed more easily after swelling or injury
- Thicker and heavier than Ring AIR, at 2.65 mm and 3.3 to 4.8 g, against 2.4 mm and 2.4 g
- Bluetooth LE 5.3; the Ring AIR charger does not work with Ring PRO
Software
- Jade, an AI layer that reads ring data, Blood Vision markers, M1 glucose data and Ultrahuman Home data
- PowerPlugs, including AFib Detection and Cardio Adaptability, and women’s health tools
- The app is otherwise the same as for Ring AIR
Specifications
| Physical | |
|---|---|
| Material | Titanium unibody with PVD coating, epoxy and polycarbonate; hypoallergenic inner surface |
| Thickness | 2.65 mm, varying with size |
| Weight | 3.3 to 4.8 g depending on size |
| Water resistance | 100 m |
| Sizes | 5 to 14 |
| Sensors | |
| Optical heart rate | Redesigned PPG configuration |
| Skin temperature | Yes |
| Motion | 6-axis accelerometer and gyroscope (IMU) |
| Metrics | Sleep stages, heart rate, HRV, resting heart rate, SpO2, skin temperature, movement and workouts |
| © the5krunner. Link required. | |
| Connectivity and storage | |
| Bluetooth | Low Energy 5.3 |
| Processor | Dual core with on-chip machine learning |
| On-ring storage | Up to 250 days |
| Case storage | Up to 1 year |
| Calibration | Up to 14 days |
| Charging | PRO Charger with UltraSnap magnetic contact charging, about 2.5 hours for a full ring charge |
| In the box | Ring PRO, PRO Charger and a 1 m USB-C to USB-C cable |
| © the5krunner. Link required. | |
Battery life
| Item | Detail |
|---|---|
| Chill Mode | More than 15 days |
| Turbo Mode | About 12 days |
| With PRO Charging Case | Up to 45 days between wall charges |
| Full ring charge | About 2.5 hours |
| © the5krunner. Link required. | |
Features
- Sleep Index with REM, deep and light sleep
- Dynamic Recovery scores with recommendations
- Stress Rhythm through the day
- Movement Index
- Ultra Age
- Women’s health and cycle tracking through PowerPlugs
- Overnight AFib detection through PowerPlugs
- Not a medical device
- Ultrahuman advises removing the ring for weight training
Other Ultrahuman models
Compare this model with the others in the range.
Further reading
Small things I always use
- Garmin 90-degree charging adapter: Charges your Garmin from any USB-C cable. Essential when travelling. I use one.
- Body Glide: The blue anti-chafe stick swimmers and runners carry. I use it.
- Speedo earplugs: Fewer ear infections and no cold-water dizziness. I use them.
- Dryrobe Advance: My winter changing robe for open-water swims. I use one. A cheaper option is the AONYIYI changing robe.
- Maurten: Race fuel that stays easy on the stomach. I use them.
- Beet It Sport nitrate shots: Beetroot shots I take in the days before a race. I use them.
- Garmin charging puck: The quickest way to top up before a session. I use one.
- Injinji: Toe socks that stop rubbing, so you run more. I use them.
- Ultimate toe protectors: Stop black toenails on long runs. They work. I use them.
- Compressport R2 v2 calf sleeves: My calf sleeves of choice. I use them.
- Cellucor C4: My pre-workout before hard sessions.
- TPU tubes: Schwalbe Aerothan, Tubolito and Pirelli SmarTube. Light, tiny spares. I use all three.
- G8 insoles: Adjustable insoles that are good. I use them.
- Cycplus Cube: A 97g electric pump that gets a road tyre rideable in two minutes. I carry one. 5% off with code THE5KRUNNER.
Watches and sensors
- Polar H10: My daily driver for waking HRV.
- Polar Verity Sense: My backup arm-worn HR sensor.
- Nomad bedside charger: Charges my iPhone and Apple Watch overnight. I use it, and many of their bands.
- Train.Red: The best muscle oxygen sensor I’ve used.
- Tymewear: Accurate heart rate and reliable ventilatory zones. I use it to pace endurance rides over an hour.
- Garmin Forerunner 970: A pro-grade triathlon watch. I use this.
- Apple Watch Ultra 4: My daily smartwatch. No phone needed on rides.
- Garmin Fenix 9 Pro: I’ve just bought one.
On the bike
- Continental GP5000 for everyday riding, and Aero 111 on the front for special occasions.
- Helmets: Specialized S-Works Evade 3 for road riding, and Rudy Project Wing for TT-style races. I use both.
- Ravemen FR300: A front light that mounts under your Garmin or Wahoo. I use one.
- Wahoo TRACKR Radar: I use it on one bike and Varia on the other. They perform the same.
- Garmin Varia RTL515: Radar that warns you of cars from behind. I use this model.
- Wahoo ELEMNT Roam 3: The bike computer that’s easy to use. I use mine on most rides.
- Favero Assioma Pro RS2: Accurate power pedals that swap easily between bikes. I use this model.
Home and indoor training
- NPE Runn: Makes my basic treadmill smart, sending more accurate speed and distance to my watch and Zwift. I use it.
- Google Wifi: Keeps Zwift connected in my pain cave. I use it.
- Apple TV 4K: Zwift on the big screen. I use two.
- Google Nest Doorbell (wired, 2nd gen): My video doorbell, running in both Google Home and Apple Home. I use it.
Health, recovery and sleep
- FreeStyle Libre 3 Plus: Shows how my blood sugar responds to diet.
- hDrop: Measures my sweat loss in summer and indoors.
- Fourth Frontier Zone: Checks my heart under load in hard sessions.
- Oura Ring 5: My partner’s recovery tracker of choice.
- Eight Sleep: A cooling mattress cover my partner and I use nightly.
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