Noise showcased its Luna 2.0 smart ring at CES 2025. Its advertised battery life of up to 30 days includes the charging case; Luna’s current Gen 2 product page lists up to five days for the ring itself. These are manufacturer-listed figures, not independent test results.
The launch was a 2025 announcement, not a new 2026 debut. Noise’s announcement said pre-booking would open on January 9, 2025, with deliveries expected by March 2025; those were historical plans, not current availability estimates.
What the 30-day battery claim means
The 30-day figure refers to the ring used with its portable charging case, according to Noise’s CES announcement and Luna’s product page. It should not be read as 30 days of operation between charges for the ring alone. Luna’s current Gen 2 page lists up to five days of ring-only battery life and up to 30 days for the case-supported setup.
Noise advertised the case-inclusive figure at launch. Neither the announcement nor the product listing establishes an independently tested runtime, so actual battery life may vary with use.
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- [Longer Battery Life] Enjoy up to 10 days of uninterrupted power with a single full charge that completes in just 90 minutes. Stay powered through your busy schedule without frequent recharging and efficiently maintaining continuous long-term data collection
Luna Ring Gen 2 specifications
The following details are listed on Luna’s current Gen 2 product page. They are manufacturer specifications, not independently verified test results.
| Specification | What the product page lists |
|---|---|
| Battery life | Up to five days for the ring; up to 30 days with the charging case |
| Dimensions and weight | 8 mm wide, 2.9 mm thick, and 3–5 g depending on size |
| Construction | Titanium with PVD coating |
| Water resistance | Up to 5 ATM / 50 m |
| Connectivity | Bluetooth Low Energy 5 |
| Phone compatibility | iOS 18 or later and Android 6 onwards |
| Listed sensors | Green LEDs for optical heart rate, red light for blood-oxygen sensing, PPG, skin temperature, photodiodes, and a three-axis accelerometer |
Health tracking and accuracy claims
Luna’s product page lists sensors for heart-rate and blood-oxygen sensing, skin temperature, and movement. The listed components describe the hardware; they do not, by themselves, establish the accuracy of particular readings or health insights.
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- [No Subscription Fees] Unlock lifetime access to the comprehensive suite of features on the RingConn Smart Health Monitoring App with your RingConn Gen 2 Smart Ring. Experience continuous, real-time health tracking and personalized insights
- [More Than Just Health Monitoring] RingConn Gen 2 Smart Ring surpasses standard health monitoring features by not only tracking your activity, sleep, stress, heart rate, HRV, and blood oxygen saturation but also supporting OTA updates. This ensures continuous improvements and the addition of new features, delivering an ever-evolving experience tailored to your needs
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Noise’s CES announcement said the ring was “Validated by Philips Biosensing for 98.2% accuracy.” The announcement passage does not specify which measurement the percentage describes, or the validation method, comparator, or population. Treat it as a company claim, not evidence that every metric or user will receive readings at that accuracy.
Price and availability
Prices shown on the reviewed Noise and Luna pages differ by market and listing: Noise’s new-launch page displays 19,999, while Luna’s Gen 2 page displays $329. The pages do not establish a single global price, a universal currency basis, or current availability in every market. Check the relevant seller and region for the current offer and sizing process.
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- [AI-Powered Health Insights] RingConn Gen 2 Air Smart Ring integrates AI with multi-sensor data to continuously track key health metrics like sleep, heart rate, stress levels, blood oxygen, physical activity, and menstrual cycles. Its built-in AI assistant delivers your personalized report and guidance to enhance your wellness and daily habits
- [Size Before You Buy] RingConn Gen 2 Air uses unique sizing standards, different from standard ring sizes. Purchase RingConn Sizing Kit to find the most accurate and comfortable fit for your finger
- [No-Feel Wearing] Experience a comfortable, stylish design with a super-thin 2mm profile and only 2.5g weight. Won't interfere with your movement whether you're working out, running, diving, or engaging in any physical activity, and stays comfortable without distracting you when sleeping or working
- [No Subscription Fee for Standard Features] Unlock the lifetime use of essential standard features on the RingConn Smart Health Monitoring App with your RingConn Gen 2 Air Smart Ring. Experience continuous, real-time health tracking and personalized insights
- [Longer Battery Life] Enjoy up to 10 days of uninterrupted power with a single full charge that completes in just 90 minutes. Stay powered through your busy schedule without frequent recharging and efficiently maintaining continuous long-term data collection
For product details, see the Luna Ring Gen 2 product page. Noise’s new-launch listing may show a different market-specific offer. Verify the generation, seller, fit and availability before buying.
What to know before buying
- Compare battery figures on the same basis: ring alone versus ring with charging case.
- Check the seller’s sizing and fit process before ordering; the reviewed sources do not establish a universal sizing process.
- Confirm current price, stock, phone compatibility, and product details for your market.
- Read sensor and accuracy statements as manufacturer claims unless independent testing is provided.
FAQ
Does the Noise Luna 2.0 ring itself last 30 days?
No. The 30-day figure includes the charging case. Luna’s current Gen 2 product page lists up to five days for the ring itself.
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- [Sleep Apnea Monitoring] RingConn Gen 2 Smart Ring supports sleep health with advanced technology. Developed with leading universities and hospitals, this AI-powered ring accurately tracks sleep apnea. Unlike traditional devices, it's lightweight and comfortable, offering multi-day monitoring with real-time AHI data and personalized insights via a dedicated app for easy sleep health management
- [Size Before You Buy] RingConn Gen 2 Smart Ring uses unique sizing standards, different from U.S. and other health rings. RingConn Gen 2 Sizing Kit helps you find the most comfortable and accurate fit for your finger, preventing the inconvenience of returns and exchanges by ensuring you select the correct size before purchasing
- [No Subscription Fees] Unlock lifetime access to the comprehensive suite of features on the RingConn Smart Health Monitoring App with your RingConn Gen 2 Smart Ring. Experience continuous, real-time health tracking and personalized insights
- [More Than Just Health Monitoring] RingConn Gen 2 Smart Ring surpasses standard health monitoring features by not only tracking your activity, sleep, stress, heart rate, HRV, and blood oxygen saturation but also supporting OTA updates. This ensures continuous improvements and the addition of new features, delivering an ever-evolving experience tailored to your needs
- [Waterproof for Every Adventure] RingConn Gen 2 Smart Ring features upgraded water resistance of up to 100m, making it perfect for daily wear, workouts, and swimming. Plus, RingConn Gen 2 offers outstanding durability with a gentle touch, even for sensitive skin
Does the 30-day battery claim include the charging case?
Yes. Noise’s launch announcement and Luna’s current product page associate up to 30 days with the case-supported setup.
What does the Luna smart ring track?
Luna’s product page lists sensors for optical heart rate, blood-oxygen sensing, skin temperature, and movement. The listed sensors do not independently establish the accuracy or interpretation of the resulting metrics.
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- [AI-Powered Health Insights] RingConn Gen 2 Air Smart Ring integrates AI with multi-sensor data to continuously track key health metrics like sleep, heart rate, stress levels, blood oxygen, physical activity, and menstrual cycles. Its built-in AI assistant delivers your personalized report and guidance to enhance your wellness and daily habits
- [Size Before You Buy] RingConn Gen 2 Air uses unique sizing standards, different from standard ring sizes. Purchase RingConn Sizing Kit to find the most accurate and comfortable fit for your finger
- [No-Feel Wearing] Experience a comfortable, stylish design with a super-thin 2mm profile and only 2.5g weight. Won't interfere with your movement whether you're working out, running, diving, or engaging in any physical activity, and stays comfortable without distracting you when sleeping or working
- [No Subscription Fee for Standard Features] Unlock the lifetime use of essential standard features on the RingConn Smart Health Monitoring App with your RingConn Gen 2 Air Smart Ring. Experience continuous, real-time health tracking and personalized insights
- [Longer Battery Life] Enjoy up to 10 days of uninterrupted power with a single full charge that completes in just 90 minutes. Stay powered through your busy schedule without frequent recharging and efficiently maintaining continuous long-term data collection
What is the Luna Ring Gen 2 price?
The reviewed pages display different offers: 19,999 on Noise’s new-launch page and $329 on Luna’s product page. These listings do not establish a universal price or current availability in every region.
When did Noise debut the Luna 2.0 at CES?
Noise showcased the ring at CES 2025. The company’s pre-booking and delivery dates were historical launch plans, not current delivery estimates.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
