# Smart ring Ultrahuman Ring Air size 11 — Aster Air Black, PPG SpO2, USB-C, 6-day battery, 8.1 mm width

**URL:** https://aio.lv/en/product--ultrahuman-aa11--10968857
**Data updated:** 2026-03-23 15:46 (EET)
**Category:** Smart rings
**Manufacturer:** Ultrahuman
**Manufacturer code:** AA11
**EAN:** 8908022329555
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 399.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 330.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ultrahuman-aa11--10968857

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Thursday | free |
| Pickup points | 25.06.2026 | 1.99 EUR |
| Courier delivery to door | 25.06.2026 | 4.99 EUR |

## Summary description

Ultrahuman Ring Air is a smart ring activity tracker in size 11 (Aster Air Black) with a round form factor. It includes an infrared photoplethysmography (PPG) blood oxygen (SpO2) sensor, USB‑C connector and a 24 mAh LiPo battery providing up to 6 days of use. At 8.1 mm width it monitors sleep, activity and basic health metrics for daily wear.

## Long description

Ultrahuman Ring Air size 11 — Aster Air Black is a compact smart ring activity tracker designed for continuous daily wear. With a round form factor and an 8.1 mm band width, the ring integrates an infrared photoplethysmography (PPG) SpO2 sensor, USB‑C charging and a 24 mAh LiPo battery that provides up to 6 days of operation. The device passively monitors sleep, activity and core health metrics to deliver sleep scores, recovery insights and nightly heart rhythm analysis.
Advantages
The Ultrahuman Ring Air combines a slim physical profile with continuous monitoring features: overnight heart rhythm tracking including AFib detection, blood oxygen (SpO2) measurement via PPG, and multi-day battery life on a small 24 mAh cell. Its USB‑C connector simplifies charging and the ring’s sensors capture sleep stages, movement, steps, distance, calories and VO2 Max-related metrics for a comprehensive daily health overview.
Suitable for
Users who want passive sleep and recovery monitoring every night
People tracking daily activity metrics like steps, distance and calories
Athletes and fitness enthusiasts monitoring VO2 Max and recovery
Anyone who wants overnight heart rhythm insights and basic AFib indication
Those who prefer a low-profile wearable with several days of battery life
Key specifications
Form factor: round smart ring, width 8.1 mm
Size: 11 (Aster Air Black)
Sensors: infrared PPG sensor for SpO2 and heart rhythm monitoring
Battery: 24 mAh LiPo, up to 6 days typical use
Charging: USB‑C connector
Monitored metrics: sleep stages, sleep score, recovery score, HRV-derived insights, steps, distance, calories, activity tracking and VO2 Max-related measurements
How to use
Wear the Ultrahuman Ring Air on the designated finger in size 11 so the sensors maintain consistent contact with skin. Charge the ring using a USB‑C cable before first use and after extended periods of activity to ensure the battery remains within recommended levels. Pair the ring with the Ultrahuman companion app to enable continuous data sync, receive nightly reports, and access sleep, recovery and activity analytics. The ring operates passively—no manual activation is required for standard monitoring functions.
Usage recommendations
For reliable measurements, wear the ring snugly but comfortably and keep the sensor area clean. Charge regularly to maintain the up-to‑6‑day battery benefit and sync daily with the app to preserve long-term trends. Use the sleep and recovery insights to adjust bedtime routines, light exposure and caffeine timing; consult a healthcare professional if the ring indicates persistent irregular heart rhythms or other medical concerns.

## 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 | 11 |
| Blood oxygen sensor technology | Infrared photoplethysmography (PPG) |

## FAQ

### How much does the Ultrahuman Ring Air size 11 — Aster Air Black cost, and is it available for purchase?

The price is 399.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 Thursday 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: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Ultrahuman Ring Air size 11 — 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/10968857/62120589_large.webp