Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
RingConn RCA-01 Gold, Size 8 Gen 2 Smart Ring
Available offers (8)
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Current
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Gold, Size 8
Retailer
€266.66
Available to order
Price history by offer
Volatility: LowFeatures
- Sleep apnea monitoring
- No subscription fees
- 12-day battery life
- Stress and heart rate tracking
- Women's health tracker
- Waterproof to 328 feet
- OTA updates
- Android and iOS compatible
General specs
- Brand: RingConn
- Model: RCA-01
- Seller: Retailer
- ID: B0DG2SWCB2
- Size: 8
- Brand: RingConn
- Width: 4.3 inches
- Height: 4.7 inches
- Length: 11.3 inches
- Weight: 0.1 lbs
- Features: Sleep Apnea Monitoring, No APP Subscription, Stress Tracking, Heart Rate Monitoring, Women's Health Tracker, OTA updates, Sleep tracking, Activity tracking, HRV tracking, Blood oxygen monitoring
- Materials: Titanium alloy, Ceramic coating
- Battery Life: 12 days
- Compatibility: Android, iOS
- Water Resistance: 100 meters
- First listed by seller: June 26, 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
The RingConn Gen 2 smart ring redefines health tracking for people who want deep sleep insights without a bulky wristband. If you're concerned about sleep apnea or simply want to monitor your overnight recovery, this ring delivers clinical-grade data in a comfortable, everyday form factor.
Unlike other wearables, the RingConn Gen 2 tracks sleep apnea using AI developed with leading universities. You get real-time Apnea-Hypopnea Index (AHI) readings and personalized insights through the app. No more guessing if you had a restless night—the ring tells you exactly what happened. Plus, there are no subscription fees. You unlock all features, including stress, heart rate, HRV, blood oxygen, and women's health tracking, right out of the box.
Before you buy, use the included sizing kit to find your perfect fit. The ring is waterproof to 100 meters, so you can wear it while swimming or showering. It also supports OTA updates, meaning your ring gets better over time with new features and improvements. With a 12-day battery life, you can wear it day and night without constant charging.
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| Brand | RingConn | BIEMHA | JHYLJSH | TIAZUUX | LISASRING | femometer |
| Model | RCA-01 | 750961720935 | 2024 | Smart Ring | R26 | Smart Ring Gen2 |
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| Price | €266.66 | €9.89 | €24.07 | €53.50 | €80.26 | €177.48 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Mar 24, 2026 | Mar 21, 2026 | Dec 17, 2025 | May 3, 2026 | Mar 21, 2026 | May 13, 2026 |
| Size | 8 | 8 | 7 | |||
| Battery Life | 12 days | 7–10 d | 5-7 days of use, 15 days of standby | |||
| Compatibility | Android, iOS | Android 5.1 or above, iOS 8.0 or above | iPhone, Android | |||
| Water Resistance | 100 meters | 80-meter | 5 ATM | |||
| batteries | 1 AAA batteries required. (included) | 1 Nonstandard Battery batteries required. (included) | 2 C batteries required. (included) | |||
| Item Weight | 2.39 ounces | 2.9 Grams | 3.5 Grams | |||
| Package Dimensions | 2.99 x 2.91 x 1.73 inches | 3.54 x 3.15 x 1.49 inches | 3.2 x 3.2 x 2.4 inches | |||
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