Noise Luna Smart Ring  Gen 2.0 Size 10 Lunar Black

LifeOS with Luna AI 2.0 – Personalized health and lifestyle guidance based on sleep, activity, circadian rhythm, and recovery data.
Comprehensive Biometrics – Monitors heart rate, blood oxygen (SpO₂), skin temperature, stress, and activity.
Advanced Sleep Tracking – Measures sleep cycles, efficiency, disturbances, and circadian alignment.
Fertility & Cycle Insights – Detects physiological shifts to estimate fertility phases.
Long Battery Life – Up to 5 days per charge, extendable to 21–30 days with the Surge Charger case.
Premium Build – Titanium body with PVD coating, lightweight (3–5 g), slim (8 mm width), and water-resistant (5 ATM).
No Subscription Required – Full access to features without ongoing fees.