Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
RingConn RCA-02 Dune Gold, Size 8 Gen 2 Air Ultra-Thin AI Smart Ring
Available offers (9)
—
—
—
Current
—
Dune Gold, Size 8
Retailer
€177.09
Available to order
Price history by offer
Volatility: LowFeatures
- AI-powered health insights
- 10-day battery life
- Ultra-thin 2mm profile
- No subscription fee for standard features
- IP68 waterproof rated to 328 feet
- Tracks sleep, HR, stress, SpO2
- Find Your Ring feature
- HSA/FSA eligible
General specs
- Brand: RingConn
- Model: RCA-02
- Seller: Retailer
- ID: B0DWK135K9
- Size: 8
- Width: 4.3 inches
- Height: 4.7 inches
- Length: 11.3 inches
- Weight: 0.0055 pounds
- Case Color: Gold
- AI Assistant: Yes
- Battery Life: 10 days
- Subscription: No fee for standard features
- Charging Time: 90 minutes
- Compatibility: iOS, Android
- Protective Cap: No
- Number of Items: 1
- HSA/FSA Eligible: Yes
- Waterproof Depth: 100m
- Profile Thickness: 2mm
- Tracking Features: Sleep, Heart Rate, Stress Levels, Blood Oxygen, Physical Activity, Menstrual Cycles
- Waterproof Rating: IP68
- Sizing Kit Required: Yes
- Find My Ring Feature: Yes
- Weight without battery: 2.5g
- First listed by seller: December 9, 2025
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Retailer
Shipping options
Delivery to 
United States
United States
Available
Forget strapping on a bulky fitness tracker or smartwatch, especially at night. The RingConn Gen 2 Air Smart Ring is designed for continuous wear, whether you are sleeping, swimming, or working. You get a complete picture of your health without any distractions.
The ultra-thin 2mm profile and 2.5g weight mean you will hardly notice it, but the AI-powered insights are impossible to ignore. It tracks sleep stages, heart rate, stress, blood oxygen, and activity, and delivers a personalized daily report. The app shows your readiness score and suggests adjustments to your routine. After a poor night of sleep, the ring does not just tell you; it guides you on how to recover.
No subscription fees for standard features. The free app gives you deep health trends and menstrual cycle tracking. With a 10-day battery life, you only need to charge it for 90 minutes once a week. Plus, it is IP68 waterproof to 100 meters, so you can dive, swim, or shower without removing it. Find your ring easily with the intuitive 'Find Your Ring' feature. Start your day knowing exactly how your body is doing.
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
|
RingConn RCA-02 Dune Gold AI-powered health insights
|
RingConn RCA-02 AI-Powered Health Insights
|
Samsung SM-Q501NZDAXAR Gold Up to 7-Day Battery Life
|
Smart Ring with Sleep Monitoring, Step Counting, Heart Rate, Blood Oxygen
|
Victormont Gen 1 Rose Gold No subscription fees
|
Emerhome R11 Ultra-thin and comfortable design
|
|
| Brand | RingConn | RingConn | Samsung | SARUNN ER | Victormont | Emerhome |
| Model | RCA-02 | RCA-02 | SM-Q501NZDAXAR | Gen 1 | R11 | |
| Color |
|
|
|
|
||
| Rating |
|
|
|
|
|
|
| Price | €177.09 | €177.09 | €382.65 | €44.49 | €88.98 | €26.69 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 20, 2026 | May 7, 2026 | May 16, 2026 | Mar 21, 2026 | May 27, 2026 | Mar 22, 2026 |
| Size | 8 | 8 | 9 | |||
| Weight | 0.0055 pounds | 0.006875 pounds | 0.11 | |||
| Battery Life | 10 days | Up to 7 days | 5–7 d | 7 d | ||
| Water Resistance | Yes | IP68 | IP68 | |||
When this device makes sense
Product confidence
Reviews
There are no text reviews yet. If you have experience using this product, please leave a review. It will help other people decide whether this product is right for them.