Review: Luna Ring Gen 2
A subscription-free smart ring for those who to know more about their health
Smart rings are the newest tech people are buying who want a better understanding of their everyday health
For years the only name you would hear was Oura, but the Finnish brand has kept this behind a subscription wall leaving companies like LunaRing to enter the market.
Luna Ring 2.0 delivers real-time sleep, readiness, and activity scores. These scores are powered by an upgraded Luna AI engine that analyses physiological patterns to offer personalised recommendations on sleep quality, stress resilience, and recovery.
The biggest change in the new ring is the ability to talk to it.
You can simply say,“Hey Siri, Track with Luna” to log anything you’re doing-meals, supplements, workouts, caffeine, even how you feel,without opening an app or switching between systems.
Or you can say, “Hey Siri, Talk to Luna” and LifeOS responds with a real conversation about your sleep, recovery, stress, hormones, or performance, grounded in your actual biometric data from the Luna Ring and connected to everything you’ve shared about your life
The Gen 2 gets a lot right in its design and wearability, and it’s a ring I didn’t feel like was too bulky but the sensor bumps inside did get a little annoying at times. Made from titanium, the go-to material for smart rings, it’s both lightweight and durable.
For Gen 2, The Luna Ring Gen 2 doesn’t offer the best battery life among smart rings. The maximum battery life is listed as up to 5 days but Luna now allows you to charge your ring while on the go.
A glowing ring encircles the charging dock to indicate remaining battery, and a smaller light in front indicates successful charging.
Tracking your fitness and exercise is one of the main reasons people buy into smart rings. The Gen 2 tracks your daily steps and automatically detects workouts, though it currently only recognises walking and running. This data, combined with metrics such as resting heart rate and sleep, contributes to an overall readiness score.
Luna detects physiological shifts in an individual’s cycle like temperature and recovery to predict phases and personalise wellness insights, this will be important to those who want a closer look at their cycles.
Luna will also spots signs of stress through heart rate, recovery trends, and temperature shifts so patterns can be identified and action taken.
There’s a dedicated area for Luna’s AI coach, featuring tools like a daily health digest and options to create workout or nutrition plans. The coach can offer adaptable responses and serve as a useful resource for learning how to get the most out of your tracking but I did find that I very rarely used this function
Overall I really liked the Luna Ring. It is my first smart thing and I found myself checking in on the app to see what it had calculated about my sleep and health. If you’re looking for a beginners smart ring without the huge subscription price tag, look no further.
Luna 2.0 Smart Ring - available worldwide at Luna for $300/£300