# Smart ring Ultrahuman Ring Air — Size 12, Aster Air Black, PPG SpO2, USB-C, 6-day battery, 8.1 mm width

**URL:** https://aio.lv/en/product--ultrahuman-uhra-aa-12-eul7--12256674
**Data updated:** 2026-04-09 12:36 (EEST)
**Category:** Smart rings
**Manufacturer:** Ultrahuman
**Manufacturer code:** UHRA-AA-12-EUL7
**EAN:** 8906184873732
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 305.99 €
**Prices and availability valid until:** 2026-07-18 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-aa-12-eul7--12256674

## 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 smart ring activity tracker in Aster Air Black, size 12. It features an infrared photoplethysmography (PPG) sensor for blood oxygen (SpO2) monitoring, USB‑C charging, a 24 mAh LiPo battery providing up to 6 days of runtime, and a slim 8.1 mm profile. Designed for continuous activity, sleep and health tracking with a compact round form factor.

## Long description

Ultrahuman Ring Air in Aster Air Black is a slim smart ring designed for continuous activity, sleep and health tracking. Sized 12 with an 8.1 mm profile, it uses an infrared PPG sensor to monitor blood oxygen (SpO2), heart metrics and skin temperature, and offers up to six days of battery life with USB‑C charging in a compact round form factor.
Advantages
The ring provides fingertip-level biometric accuracy for sleep, recovery and vital sign monitoring, benefiting from higher blood flow and arteriole density compared with wrist wearables. At about 2.4 grams and 8.1 mm wide, its featherlight, hypoallergenic inner lining supports all-day and night wear without noticeable discomfort. Built-in waterproofing, Bluetooth 5.0 connectivity and a 24 mAh LiPo battery combine for reliable everyday use.
Suitable for
People who want precise sleep stage and sleep quality monitoring
Users tracking recovery metrics such as HRV and skin temperature
Those who prefer a minimal, lightweight wearable instead of a smartwatch
Active users who need continuous activity and workout tracking
When it may not be suitable
The ring may be unsuitable if you need advanced smartwatch features such as apps, notifications, a touchscreen, or integrated GPS. It also might not fit users who require larger ring sizes than size 12 or who prefer a wrist-based device for on-the-go interaction.
Key specifications
Form factor: round smart ring, slim profile (8.1 mm width)
Weight: approximately 2.4 g
Sensors: infrared photoplethysmography (PPG) for SpO2, heart rate and related metrics; skin temperature monitoring
Connectivity: Bluetooth 5.0
Battery: 24 mAh LiPo, up to 6 days runtime
Charging: USB-C
Water resistance: designed to be waterproof (suitable for daily use)
How to use
Wear the Ultrahuman Ring Air on a finger where it fits comfortably and snugly to ensure consistent sensor contact. Charge the ring using the included USB‑C cable and pair it with the Ultrahuman app via Bluetooth 5.0 to set up continuous tracking. Use the app to view sleep stages, daily sleep score, recovery score and activity summaries and to access personalized recovery suggestions and breathing or nap techniques.
What to consider before purchase
Confirm ring size (this listing is size 12) to ensure proper fit and accurate readings
Decide whether fingertip-based tracking suits your needs versus a wrist wearable
Check that USB‑C charging and up to 6 days battery life meet your usage patterns
Usage recommendations
For best results wear the ring continuously, especially during sleep and rest periods, keep the sensor area clean and dry, and sync regularly with the app to receive up-to-date recovery and sleep insights.

## Specifications

| Feature | Value |
|---|---|
| Battery technology | Lithium Polymer (LiPo) |
| Form factor | Round |
| Battery capacity | 24 mAh |
| Bluetooth version | 5.0 |
| Width | 8.1 mm |
| USB connector type | USB Type-C |
| Product colour | Black |
| Cables included | USB Type-C to USB Type-C |
| Bluetooth | Yes |
| Device type | Smart ring activity tracker |
| Wi-Fi | No |
| GPS (satellite) | No |
| Charging base | Yes |
| Charging time | 3 h |
| Waterproof up to | 100 m |
| Rechargeable battery | Yes |
| Housing material | Resin, Titanium |
| Heart rate monitor | Yes |
| Waterproof | Yes |
| Mobile operating systems supported | Android 6.0, Android 10.0, Android 11.0, Android 12.0, Android 13.0, Android 14.0, Android 7.0, Android 7.1, Android 7.1.2, Android 8.0, Android 8.1, Android 9.0, iOS 15, iOS 16 |
| Battery operated | Yes |
| Display type | No |
| Motion sensor | Yes |
| Charging source | USB |
| Battery life | 6 day(s) |
| Colour name | Aster Black |
| Quantity per pack | 1 pc(s) |
| Find my phone function | Yes |
| Position location | No |
| Active minutes | Yes |
| Calories burned | Yes |
| Distance travelled | Yes |
| Quality of sleep | Yes |
| Workout tracking | Yes |
| Hours slept | Yes |
| Bluetooth Low Energy (BLE) | Yes |
| Blood oxygen sensor | Yes |
| Skin temperature sensor | Yes |
| Ring size | 12 |
| Blood oxygen sensor technology | Infrared photoplethysmography (PPG) |

## FAQ

### How much does the Ultrahuman Ring Air smart ring — Size 12 Aster Air Black 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 — 24 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 12 Aster Air Black 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/12256674/68170886_large.webp