RingConn Gen 2 Air Smart Ring
- Battery Average Life: 10 days
- Operating System: RingConn App
- Water Resistance Level: Water Resistant
- Band Material Type: Metal
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A capable sleep and health tracker for its size, provided the buyer sizes it correctly first; skipping the sizing kit is the most common way to end up with the wrong fit.
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ASIN: B0DWJTV3J5Model: RCA-02Category: Smart Rings
Colors Available
Sizes Available
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Overview
The RingConn Gen 2 Air is a 2mm, 2.5g titanium smart ring, this listing in size 9 and Galaxy Silver, that logs sleep, heart rate, blood oxygen, stress and menstrual cycle data through the RingConn app. Standard tracking features run without a subscription, and the ring is IP68 rated to 100m for showers, swimming and diving.
RingConn uses its own sizing scale rather than standard ring sizes, so the brand recommends ordering a RingConn sizing kit and wearing the test ring for a day before committing to a size. The app layers an AI assistant on top of the raw sensor data to summarize sleep and activity trends, and the ring is also listed as HSA/FSA eligible.
- 2mm profile at 2.5g
- Up to 10 days per charge, 90-minute recharge
- IP68 waterproof to 100m/328ft
- Tracks sleep, heart rate, stress, SpO2 and menstrual cycle
Who it's for
Fits people who want continuous sleep and heart rate tracking without a watch on their wrist, and who are comfortable buying a separate sizing kit first. Less suited to anyone who wants an on-ring display or haptic alerts, since this is a sensor-only ring with no screen.
Pros and cons
- 10-day battery from a 90-minute charge
- No subscription needed for core tracking
- IP68 rated to 100m for swimming and diving
- 2mm, 2.5g profile stays comfortable overnight
- Uses RingConn's own sizing scale, not standard ring sizes
- No display, all data lives in the app
- Listed under a Sports & Outdoors fitness tracker category despite being sold as a ring
Performance notes
The ring pairs multiple sensors, optical heart rate, SpO2, temperature and motion, with an on-app AI layer that turns raw readings into sleep, stress and cycle summaries rather than raw numbers alone. A full charge takes about 90 minutes and is rated for up to 10 days of continuous wear, and the IP68 rating covers handwashing, rain, showers and swimming to 100m.
Specifications
| Brand | RingConn |
|---|---|
| Model | RCA-02 |
| Dimensions & fit | |
| Item Weight | 0.01 pounds |
| Item Dimensions | 11.3 × 4.3 × 4.7 inches |
| Item Dimensions D X W X H | 0.1 × 0.1 × 0.1 inches |
| Water Resistance Depth | 100 meters |
| Capacity & performance | |
| Battery Capacity | 0.02 amps |
| Memory Storage Capacity | 0.002 GB |
| Age Range Description | Adult |
| Power & efficiency | |
| Battery Average Life | 10 days |
| Battery Cell Type | Lithium Polymer |
| Construction & materials | |
| Band Material Type | Metal |
| Case Material Type | Titanium |
| Color | Galaxy Sliver |
| Band Color | Silver |
| Compatibility & installation | |
| Connectivity Technology | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Android Devices, IOS Devices |
| Human Interface Input | Buttons |
| Warranty & support | |
| Warranty Description | 1 year |
| Warranty Type | Limited |
| Supported Application | Fitness Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Other details | |
| Operating System | RingConn App |
| Water Resistance Level | Water Resistant |
| Control Type | App |
| Gps Geotagging Functionality | No GPS |
| Display Type | No Display |
| Wearable Computer Type | Smart Ring |
| Closure Type | Buckle |
| Sport Type | Multi-Sports, Running, Swimming, Walking, Yoga |
| Communication Feature | Bluetooth |
| Shape | Round |
| Wireless Compability | Bluetooth |
| Style Name | Minimalist |
| Wireless Provider | Unlocked |
| Target Audience | Unisex Adults |
| Waterproof Rating | IP68 |
| Metrics Measured | Heart Rate, Sleep Duration, Stress, Blood Oxygen Monitor |
Frequently asked questions
Does the RingConn Gen 2 Air use standard ring sizes?
No. RingConn uses its own sizing scale that differs from jewelry ring sizes, so the brand recommends buying a RingConn sizing kit and wearing the test ring for about a day before ordering.
Is there a monthly fee to use the RingConn Gen 2 Air?
Standard tracking features, sleep, heart rate, stress, SpO2 and activity, work through the app with no subscription fee.
Can the RingConn Gen 2 Air be worn swimming?
Yes, it carries an IP68 rating tested to 100m/328ft, which covers showers, handwashing and swimming or diving.