FAQs
1. Product Basics
What is Luna Ring?
Luna Ring is a wearable health tracking ring designed to monitor sleep, recovery, heart rate, and daily activity. Worn comfortably on your finger, it provides personalised insights through the Luna app — without screens or ongoing subscription fees.
How does Luna Ring work?
Luna uses advanced sensors to measure biometric signals such as heart rate, movement, and temperature trends. These signals are analysed by LifeOS, Luna’s intelligent health platform, which translates your data into clear insights within the Luna app.
LifeOS helps you understand patterns in your sleep, recovery, and daily wellbeing over time.
What does Luna Ring track?
Luna tracks a range of biometric signals and health indicators, including:
- Sleep duration and sleep stages
- Circadian rhythm alignment
- Heart rate and heart rate variability (HRV)
- Skin temperature trends
- Blood oxygen (SpO₂) trends
- Activity levels
- Recovery metrics
- Fertility and cycle tracking
These signals are analysed by LifeOS to generate personalised insights and long-term health trends.
What is LifeOS?
LifeOS is Luna’s intelligent health platform that powers the insights within the Luna app.
It analyses the biometric signals captured by your Luna Ring — including sleep, heart rate, recovery, and activity — and translates them into personalised insights that help you understand how your body is performing.
LifeOS focuses on long-term patterns and practical guidance to help you improve sleep, recovery, and overall wellbeing.
What is Luna AI-Powered Health Coaching?
Luna AI Coach is powered by LifeOS, Luna’s intelligent health system.
It analyses your biometric data and provides personalised guidance. Instead of simply displaying raw numbers, it highlights trends in sleep, recovery, and daily habits to help you make better decisions for your health.
Is Luna a medical device?
No. Luna Ring is not a medical device and is not intended to diagnose, treat, cure, or prevent any medical condition. It is designed for general wellness insights and lifestyle tracking.
2. Comfort, Wear & Durability
Is Luna Ring comfortable to wear?
Yes. Luna is lightweight and designed for continuous wear, including during sleep. Most users quickly forget they are wearing it.
Can I comfortably wear Luna Ring all day and while sleeping?
Yes. Luna Ring is designed for 24/7 wear, including during sleep.
Its lightweight titanium design and smooth inner surface allow it to sit comfortably on your finger throughout the day and night. Because Luna has no screen, vibrations, or notifications, most users quickly forget they are wearing it.
The longer you wear Luna, the more valuable your insights become as LifeOS learns patterns in your sleep, recovery, and daily habits.
Can I wear Luna all day and night?
Yes. Luna is designed to be worn continuously to capture the most accurate sleep, recovery, and health insights.
Is Luna Ring waterproof?
Luna Ring is water-resistant and suitable for everyday activities such as hand washing and showering. It is not designed for deep water immersion or diving.
3. Battery & Charging
How long does the battery last?
Battery life varies depending on usage, but Luna Ring typically lasts 4–7 days on a single charge.
What is included in the box?
Each Luna Ring package includes:
- Luna Ring
- Charging dock
- USB charging cable
- Quick start guide
4. App, Compatibility & Subscriptions
What phones are compatible with Luna Ring?
Luna Ring works with most modern iOS and Android smartphones through the Luna app.
Do I need a subscription to use Luna?
No. Luna Ring does not require a subscription. All features and health insights are included with your one-time purchase.
Do I need to check the app constantly?
No. Luna is designed to work quietly in the background. You can review your insights whenever it suits you.
5. Sizing, Shipping & Returns
How do I choose the right ring size?
Luna Ring is available in multiple sizes, and ring sizing can vary between brands. We recommend ordering the Luna sizing kit first to determine the most comfortable and accurate fit.
How should Luna Ring fit?
Luna Ring should fit snugly but comfortably on your finger. A secure fit ensures the sensors maintain consistent contact with your skin, helping deliver the most accurate health insights.
The ring should not feel tight or restrict circulation, but it should also not rotate freely or slide off easily.
Because finger size can change throughout the day, we recommend choosing a size that feels comfortable both during the day and at night.
Many users find the index or middle finger provides the best fit and most consistent tracking.
What happens if my ring does not fit?
If your ring does not fit as expected, you may request an exchange within our 30-day return period.
One exchange is allowed for incorrect sizing. We strongly recommend using the sizing kit before ordering to ensure the best fit.
What is your shipping and return policy?
We offer free standard shipping within Australia and a 30-day return policy. Full details are available on our Shipping and Returns pages.
6. Accuracy & Everyday Usefulness
How accurate is Luna Ring?
Luna measures clinically established biometric signals such as heart rate, movement, and temperature trends to generate reliable insights.
It is designed to help you understand health patterns and trends over time, rather than provide medical-grade measurements.
Will Luna work if I do not exercise?
Yes. Luna is designed for everyday life, not just training. It provides valuable insights through sleep, recovery, and wellbeing regardless of activity level.
Will Luna still be useful over time?
Yes. Luna becomes more valuable the longer you wear it. Over time, it builds trend data that helps you understand patterns in sleep, recovery, and daily habits.
7. Comparisons & Positioning
Is Luna Ring available in Australia?
Yes. Luna Ring Gen 2 is available in Australia through Lunazone.au, the official Australian distributor.
Orders ship locally within Australia, and customers receive Australian support and a 30-day return policy.
Is Luna Ring an alternative to other smart rings?
Yes. Luna Ring provides many of the same health insights offered by other smart rings, including sleep tracking, recovery insights, heart rate monitoring, and activity trends.
Luna focuses on simplicity and accessibility, offering AI-powered insights through LifeOS with a one-time purchase and no subscription fees.
How is Luna different from a smartwatch?
Unlike smartwatches, Luna has no screen, notifications, or distractions. It focuses on passive health tracking — especially during sleep — with insights delivered through the app.
How is Luna different from fitness trackers?
Many fitness trackers focus primarily on workouts and step counts. Luna prioritises sleep, recovery, and overall wellbeing, making it useful even on rest days.
Will Luna replace my smartwatch or fitness tracker?
Luna can be used on its own or alongside other devices. Many users wear Luna specifically for sleep and recovery tracking.
8. Privacy & Data Security
Is my data private and secure?
Yes. Your data is encrypted both in transit and at rest and stored securely to protect your privacy.
Who owns my data?
You do. All data collected by Luna belongs to you and is accessible through the Luna app.
Does Luna sell or share my health data?
No. Luna does not sell personal health data or use it for advertising purposes.
Can I delete my data?
Yes. You can request deletion of your data at any time in accordance with our privacy policy.
Does Luna record location or audio?
No. Luna Ring does not track location, record audio, or monitor conversations.