Luna Smart Ring Gen 2: Accurate Health Tracking, No Subscription—Now With LifeOS

Oct 13, 2025

Order it here - https://soam.vip/luna

If you’ve been eyeing health-tracking rings but balk at paywalls and limited compatibility, the Luna Smart Ring Gen 2 is worth a closer look. Priced at $329 (tax included), Luna’s second-generation ring doubles down on accuracy, battery life, and everyday usability—without a monthly subscription. Here’s what stands out, what’s inside, and how it compares.

Why Luna over others

Luna’s core promise is simple: clinical-grade tracking with full-feature access from day one. The Gen 2 ring introduces a sleeker build that’s 10% slimmer and lighter, plus a portable surge charging case that extends total uptime to as much as 30 days. You’ll get real-time support, AI-guided coaching, and multilingual app access—without paying extra for features or colors.

Highlights at a glance:

  • Price: $329, inclusive of taxes. HSA/FSA support planned.

  • No subscription: The Luna app unlocks all features.

  • Battery: 4–7 days per charge on the ring; up to 30 days with the case.

  • Compatibility: iOS and Android, with Apple Health and Google Fit integration.

  • Water resistance: 5 ATM (up to 50 meters).

  • Materials: Titanium with durable PVD coating in multiple finishes (Stardust Silver, Lunar Black, Rose Gold, Midnight Black, Sunlit Gold).

  • Sizes: 6–13 available now; 14 launching soon. A complimentary sizing kit ensures the right fit.

Meet LifeOS: Your body’s personal intelligence system

LifeOS is Luna’s always-on health engine that connects biomarker tracking with practical guidance. It turns raw data into personalized insights, predictive prompts, and actionable recommendations—so you know what to do next, not just what happened.

What Luna tracks—and why it matters

Sleep quality

  • Stages: Light, Deep, and REM analysis using heart rate, temperature, and movement.

  • Metrics: Efficiency, interruptions, trends over time.

  • Outcomes: A nightly sleep score with tailored tips to improve recovery and deep sleep.

Women’s health and fertility awareness

  • Biomarkers: Skin temperature and HRV patterns help identify cycle phases and ovulation windows.

  • Use cases: Cycle prediction, recovery planning, and phase-based wellness coaching.

Stress and recovery

  • Signals: Heart rate trends, temperature shifts, and HRV help detect calm, focused, or stressed states.

  • Utility: Pattern recognition and recommendations to reduce stress load and improve readiness.

Activity and training

  • Daily effort: Track distance, pace, and training time.

  • Coaching: Balance workload and recovery to prevent burnout and optimize fitness gains.

Sensors and specs under the hood

The Gen 2 ring includes:

  • Green LEDs (optical heart rate)

  • Red light (SpO2)

  • PPG with photodiodes

  • Skin temperature sensor

  • 3-axis accelerometer

  • Bluetooth Low Energy (BLE 5)
    It’s IP-rated to 5 ATM, operates best from -10°C to 45°C, and stores data offline when needed, syncing automatically once connected.

Comfort, fit, and design

Crafted from biocompatible titanium with a seamless inner ring, Luna is scratch-resistant (though not scratch-proof). For heavy strength training or abrasive environments, a silicone cover can help preserve the finish. Wear it on your index, middle, or ring finger—sensor bumps on the inner band should sit on the palm side for the best readings. Gloss finishes shine; matte options discreetly hide micro-abrasions.

Battery life and charging

Expect 4–7 days per ring charge and up to 30 days with the surge case. Full charge time is about 120 minutes (2 hours). The case’s 580mAh capacity and compact build make multi-week trips feasible without hunting for outlets.

Privacy and safety

Luna uses end-to-end encryption and is designed for daily wear with hypoallergenic materials. It emits low-power Bluetooth signals and supports offline tracking, syncing when reconnected. While not a medical device, Luna targets wellness insights you can act on every day.

How Luna compares

  • Subscriptions: Luna doesn’t charge a monthly fee; core features are free.

  • Battery case: Up to 30 days with the case—longer than some competitors’ single-cycle cases.

  • Support and AI: Real-time chat support plus AI coaching, with voice AI/health coach on the roadmap.

  • Ecosystem: Works with iOS and Android and syncs with Apple Health and Google Fit.

Buying, sizing, and delivery

You’ll receive a complimentary sizing kit first to dial in your fit; then choose your color and finalize the order via the kit’s QR code. If you already know your Luna size (from their kit), you can skip this step with support’s help. Orders typically ship in two stages (kit, then ring), each taking about 5–7 business days depending on your location.

Warranty, returns, and support

Luna offers a 1‑year limited hardware warranty covering defects, battery anomalies, and sensor miscalibration. Because the ring is sealed and non-serviceable, validated claims result in direct replacements, with Luna covering replacement shipping. Returns or exchanges aren’t available due to custom manufacturing, so the sizing kit is essential.

Who Luna Gen 2 is for

  • Wellness-focused users who want accurate tracking without subscriptions.

  • Travelers and busy professionals who value long battery life and offline syncing.

  • Athletes and enthusiasts optimizing training with recovery-aware insights.

  • Women seeking cycle-aware guidance without medical-device complexity.

Bottom line

Luna Ring Gen 2 delivers the key pillars of a great smart ring—accuracy, battery life, comfort, and meaningful insights—without paywalls. With LifeOS, strong sensor hardware, and practical design touches like the surge charging case and sizing kit, it’s a thoughtful, future-ready companion for everyday health.


Order it here - https://soam.vip/luna

VARUD means danger zone in Iceland 🇮🇸. This website is my personal version of that zone - filled with design, minimalism, and everything dangerously aesthetic. My wishlist keeps getting longer (and pricier) every day. So I turned temptation into curation — a space to admire without always buying.
All screenshots from third-party websites on this platform are copyrighted by their respective owners.

VARUD means danger zone in Iceland 🇮🇸. This website is my personal version of that zone - filled with design, minimalism, and everything dangerously aesthetic. My wishlist keeps getting longer (and pricier) every day. So I turned temptation into curation — a space to admire without always buying.
All screenshots from third-party websites on this platform are copyrighted by their respective owners.