# Smart ring Ultrahuman Ring AIR — sleep and fitness tracker, Grey, Size 8, PPG SpO2, LiPo 24 mAh, up to 6 days battery

**URL:** https://aio.lv/en/product--ultrahuman-uhra-mg-08-eul7--12256743
**Data updated:** 2026-04-09 12:36 (EEST)
**Category:** Smart rings
**Manufacturer:** Ultrahuman
**Manufacturer code:** UHRA-MG-08-EUL7
**EAN:** 8906184873879
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 305.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 252.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ultrahuman-uhra-mg-08-eul7--12256743

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Ultrahuman Ring AIR is a round smart ring activity tracker for men and women that monitors sleep, fitness and heart metrics. It uses infrared photoplethysmography (PPG) for blood oxygen (SpO2) and heart-rate sensing. The device is grey, Size 8, 8.1 mm wide and 2.45 mm thick, with a 24 mAh LiPo battery providing up to 6 days runtime. Compatible with Android versions listed; standard app features have no fee.

## Long description

Ultrahuman Ring AIR is a slim smart ring designed for men and women to monitor sleep, recovery and everyday fitness. The device uses fingertip photoplethysmography (PPG) to measure heart rate and blood oxygen (SpO2), and provides continuous insight into sleep stages, recovery score and key wellness metrics. The ring is grey, size 8, 8.1 mm wide and 2.45 mm thick, with a Lithium Polymer 24 mAh battery that offers up to 6 days of runtime and Bluetooth 5.0 connectivity. Compatible with supported Android devices via the Ultrahuman app; core app features are available without an extra fee.
Advantages
The Ultrahuman Ring AIR delivers fingertip-level sensor accuracy for heart-rate, HRV and SpO2, which can be more precise than wrist-based devices due to higher blood flow and arteriole density in fingers. At approximately 2.4 grams and with a hypoallergenic inner lining, the ring is lightweight and comfortable for continuous wear day and night. It combines sleep stage analysis, a daily sleep score and a Dynamic Recovery score to give a consolidated view of sleep quality and physiological recovery, while Bluetooth 5.0 ensures stable connectivity and the compact LiPo battery supports multi-day use.
Suitable for
People who want detailed sleep tracking and sleep stage insights.
Users who monitor recovery and stress via HRV and skin temperature trends.
Fitness-minded individuals tracking heart rate, active minutes and calories.
Anyone preferring a discreet, lightweight wearable instead of a wrist device.
When it may not be suitable
The Ultrahuman Ring AIR focuses on sleep, recovery and general wellness metrics rather than advanced smartwatch functions such as notifications, apps or built-in GPS. If you need extensive on-device interactions, mobile notifications or standalone GPS tracking, a dedicated smartwatch may be more appropriate. Also, because the ring relies on fingertip PPG sensors, correct sizing and consistent skin contact are important for accurate readings.
Key specifications
Form factor: round smart ring, grey finish
Size and dimensions: Size 8; width 8.1 mm; thickness 2.45 mm
Sensors: infrared photoplethysmography (PPG) for heart rate and SpO2; HRV and skin temperature monitoring
Connectivity: Bluetooth 5.0
Battery: Lithium Polymer (LiPo) 24 mAh; up to 6 days typical runtime
Weight: approximately 2.4 grams
Compatibility: Android devices supported via Ultrahuman app (check device requirements in the app)
How to use
Charge the ring using the supplied charger and pair it with the Ultrahuman app over Bluetooth 5.0. Wear the ring on a finger that fits snugly but comfortably to ensure consistent sensor contact. The ring continuously collects biometric data—sleep stages, heart rate, HRV, skin temperature and SpO2—which syncs to the app for daily scores, trends and recovery insights. Use the app to review sleep reports, follow recommended recovery techniques such as timed naps or breathwork, and adjust wearing position if readings appear inconsistent.
What to consider before purchase
Ensure Size 8 fits your finger measurements; accurate fit is important for sensor readings.
Consider whether you need smartwatch features such as notifications or GPS, which this ring does not provide.
Check smartphone compatibility with the Ultrahuman app and Bluetooth 5.0 support.
Plan for regular charging every few days depending on usage patterns.
Usage recommendations
For best results, wear the ring continuously, especially overnight, keep the sensor area clean, and follow the app’s guidance for placement and sizing. Use the Dynamic Recovery score alongside sleep data to plan training intensity and rest. If readings seem off, re-seat the ring or try a different finger to improve contact.

## Specifications

| Feature | Value |
|---|---|
| Battery technology | Lithium Polymer (LiPo) |
| Form factor | Round |
| Battery capacity | 24 mAh |
| Operating temperature (T-T) | -5 - 50 |
| Bluetooth version | 5.0 |
| LED indicators | Y |
| Width | 8.1 mm |
| Product colour | Grey |
| Cables included | USB Type-C to USB Type-C |
| Bluetooth | Yes |
| Device type | Smart ring activity tracker |
| Control type | Wireless |
| Thickness | 2.45 mm |
| Charging time | 3 h |
| Touchscreen | No |
| Waterproof up to | 100 m |
| Rechargeable battery | Yes |
| Housing material | Resin, Titanium |
| Heart rate monitor | Yes |
| Mobile operating systems supported | Android 6.0, Android 10.0, Android 11.0, Android 12.0, Android 13.0, Android 7.0, Android 8.0, Android 9.0, iOS, iOS 15, iOS 16 |
| Battery operated | Yes |
| Display type | No |
| Motion sensor | Yes |
| USB charger included | Yes |
| Charging source | Wireless |
| Pedometer | Yes |
| Battery life | 6 day(s) |
| Colour name | Matte Grey |
| Quantity per pack | 1 pc(s) |
| Active minutes | Yes |
| Calories burned | Yes |
| Distance travelled | Yes |
| Quality of sleep | Yes |
| Hours slept | Yes |
| Bluetooth Low Energy (BLE) | Yes |
| Blood oxygen sensor | Yes |
| Skin temperature sensor | Yes |
| Blood oxygen sensor technology | Infrared photoplethysmography (PPG) |

## FAQ

### How much does the Ultrahuman Ring AIR smart ring — Size 8 cost, and is it available for purchase?

The price is 305.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Ultrahuman Ring AIR smart ring — Size 8 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Ultrahuman products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Ultrahuman service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12256743/68170767_large.webp