At a Glance
Expert’s Rating
Pros
- Appealing design
- Sleek companion app
- Effective sleep tracking
- Choice of dock or case
Cons
- Inaccurate heart rate tracking
- Average battery life
- Underwhelming AI features
- Susceptible to scratches
Our Verdict
The Luna Ring 2.0 boasts an attractive design and solid tracking capabilities, but falls short of surpassing the top competitors in the smart ring market.
Price When Reviewed
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Best Pricing Today
Price When Reviewed
Starting from £269
Best Prices Today: Luna Ring Gen 2
The Luna Ring Gen 2 is a subscription-free smart ring from India-based Noise, offering AI-powered features for workout advice and nutrition guidance.
With a focus on AI technology, the Luna Ring Gen 2 aims to differentiate itself in the smart ring market. It utilizes machine learning to provide personalized insights and recommendations for a healthier lifestyle.
While the smart ring market is still relatively niche, the Luna Ring Gen 2 faces competition from other subscription-free options. Is it compelling enough to stand out among the competition? Let’s delve into my experience with the Luna Ring Gen 2.
Design & Build
- Available in five color finishes
- Includes portable charging case or dock
- Waterproof up to 50 meters
The Luna Ring Gen 2 features a titanium construction with a comfortable interior molding housing the essential sensors. The design is complemented by a selection of five color options, each with its unique appeal.
The sensor array, though snug on the finger, delivers accurate tracking data. The titanium material, while prone to scratches, adds a distinctive look to the smart ring.
To ensure a proper fit, a free sizing kit is available, allowing users to find the ideal size for their comfort.
If you want to charge the Luna Ring, you have the option of a portable charging case or a dock. While the case offers convenience, opting for the dock can save you some money.
The 5ATM waterproof rating allows the Luna Ring to be submerged up to 50 meters, making it suitable for various water activities, including swimming and showering.
Fitness & Tracking
- Tracks steps, sleep, heart rate, and stress levels
- Free Luna app compatible with iOS and Android
- LifeOS insights and guidance
The Luna Ring Gen 2 incorporates standard smart ring sensors for comprehensive tracking, including continuous heart rate monitoring and step counts.
Equipped with optical sensors for heart rate and blood oxygen monitoring, along with a skin temperature sensor and 3-axis accelerometer for movement tracking, the Luna Ring provides detailed fitness data.
Data is synced to the Luna app, offering a visually appealing interface with detailed breakdowns of daily activities, sleep patterns, and personalized insights.
From sleep duration to readiness scores and activity tracking, the Luna Ring provides valuable metrics to help users monitor their health and wellness effectively.
Battery Life & Charging
- Up to 5 days of battery life
- Charging case extends battery life up to 30 days
- Full charge in 120 minutes
The Luna Ring Gen 2 delivers approximately 5-6 days of battery life on a single charge, meeting the manufacturer’s claims.
Featuring a portable charging case with a 500mAh battery capacity, users can enjoy extended battery life of up to 30 days. The quick charging time of around 120 minutes ensures minimal downtime for recharging.
Price & Availability
Launched in July 2025, the Luna Ring Gen 2 is priced starting from £269/$300, positioning it as a more affordable option compared to its competitors.
For added convenience, users can opt for the portable charging case for £299/$329 or choose the standard dock charger for a lower price.
While the Luna Ring Gen 2 is not officially available in the USA, it offers a subscription-free model, aligning it with other top smart rings in the market.
Should You Buy the Luna Ring Gen 2?
The Luna Ring Gen 2 presents a compelling option in the smart ring category, with its stylish design, user-friendly app, and solid tracking capabilities.
Despite its strengths, the Luna Ring Gen 2 falls short in heart rate accuracy and battery life when compared to leading competitors. However, it excels in providing detailed insights and contextual data for users seeking a well-rounded smart ring experience.
Priced competitively and free from subscription fees, the Luna Ring Gen 2 offers a compelling choice for users interested in a feature-rich smart ring without ongoing costs.
Specifications
- Up to 5 days of battery life
- Optional portable charging case
- Compatible with Android and iOS devices
- Subscription-free model
- Weighs 3-5g (depending on size)
- Waterproof up to 50 meters
- Optical heart rate sensor
- Optical blood oxygen sensor
- Skin temperature sensor