Luna Ring 2
#6 in Smart Ring · Rated 4.0
AI-powered smart ring with long battery life and 70+ metrics
Luna Ring Gen 2 is Noise’s next-generation smart ring, announced at CES 2025. It emphasizes AI-guided wellness with sleep, stress, heart health, blood oxygen, and women’s health tracking, backed by Philips Biosensing validation (98.2% accuracy). Battery life is extended (promising up to 30 days in some modes with a charging case), and pre-orders began in January 2025 with shipments planned for March 2025. Noise is an India-based brand expanding globally. Availability and reviews reflect a rapid push into Western markets, with ongoing debates about firmware updates and app stability. ([prnewswire.com](https://www.prnewswire.com/news-releases/noise-unveils-next-gen-wearables-at-ces-2025-showcases-luna-ring-gen-2-and-noise-colorfit-pro-6-series-302344437.html?utm_source=openai))
Features
- 70+ biosignals including stress, sleep, HRV, SpO2
- AI-driven workouts and nutrition insights
- Extended battery life with charging case
- iOS/Android app support
Pros
- Long battery life and AI features
- Strong price-performance and global brand
- PHI-labeled validation for sensors
Cons
- Early-access reliability concerns
- US/UK availability rolled out gradually