Luna Ring Gen 2Price, Battery, Sizing & No-Subscription Tracking
No release date reportedGuide updated
The Luna Ring Gen 2 tracks sleep stages, heart rate, HRV, blood oxygen, body temperature trends, activity and recovery, and turns them into insights in the free Luna app. There is no subscription. Luna says Gen 2 is 10% slimmer than the first ring and comes with a portable battery case for up to 30 days of use.
Where it shines
Comparison
Compare smart ringsHow it compares
Price
$249
The official list price to buy it.
Weight
Not confirmed
Grams on your finger. Lower is lighter.
Battery life
Not confirmed
How long it lasts on its own, away from a charger.
If not this one
- If health sensors decides itRingConn Gen 3
Round-the-clock heart rate, HRV, blood oxygen, skin temperature and stress tracking comes with real-time health alerts.
Quick answers
All FAQsQuick answers
How much does the Luna Ring Gen 2 cost?
$249.00 at Luna's US store. Luna does not charge extra for different sizes or colors.
Which finger should I wear the Luna Ring Gen 2 on?
Luna recommends the index, middle or ring finger of your non-dominant hand, with the sensor bumps on the palm side.
Should I buy the Luna Smart Ring Gen 2?
Good to buy. No new model is close and the price is near its low, so we'd buy now. It is $249 at Luna, price checked Nov. 2, 2026. See the full answer on the Noise Luna Smart Ring Gen 2
At a glance
THIS PRODUCTLuna Ring Gen 2
COMPARE WITHRingConn Gen 2 AirPrice
The starting list price, not a temporary sale price. It is usually the first thing that rules a product in or out.
From $249
From $199
Show 5 more specs⌄
Technical specs⌄
Connectivity
Bluetooth, Wi-Fi and other connections determine what the device can work with.
AI features
AI features vary from simple voice help to camera-based assistants.
Unknown
Case battery
More time between charges usually makes a wearable easier to live with.
Unknown
Noise
Good to buy.
No new model is close and the price is near its low, so we'd buy now.
Luna Smart Ring Gen 2
Where to buy
| Store | Price | Action |
|---|---|---|
| Luna | $249 | Buy |
Price history
No new model is close and the price is near its low, so we'd buy now.
- Price history
- Still collecting (1 of 7 days)
- Stores we check
- 1Luna
Similar products to consider
Frequently asked questions
Questions about Luna Smart Ring Gen 2
Top questions
How much does the Luna Ring Gen 2 cost?
$249.00 at Luna's US store. Luna does not charge extra for different sizes or colors.
Which finger should I wear the Luna Ring Gen 2 on?
Luna recommends the index, middle or ring finger of your non-dominant hand, with the sensor bumps on the palm side.
Should I buy the Luna Smart Ring Gen 2?
Good to buy. No new model is close and the price is near its low, so we'd buy now. It is $249 at Luna, price checked Nov. 2, 2026. See the full answer on the Noise Luna Smart Ring Gen 2
Does the Luna Ring Gen 2 need a subscription?
No. The Luna app is free, with no subscription fees or hidden charges.
How long does the Luna Ring Gen 2 battery last?
Luna rates it at up to 30 days of use with the charging case. A full charge takes about 60 to 90 minutes from empty. Real battery life depends on your use and settings.
What is new in the Luna Ring Gen 2?
Luna says Gen 2 is 10% slimmer, lighter and faster than the first Luna Ring, comes with a portable battery case for up to 30 days of use, and has refined sensor accuracy.
What does the Luna Ring Gen 2 track?
Sleep stages, heart rate, HRV, SpO2, body temperature trends, activity and recovery. It also tracks menstrual cycles and ovulation from temperature and HRV. It is not a medical device.
What sizes does the Luna Ring Gen 2 come in?
Sizes 6 to 14. Every order comes with a sizing kit first: you try the sample rings, then submit your size and color with the kit's QR code, and Luna ships the ring.
Can I swim with the Luna Ring Gen 2?
Luna rates it water resistant to 50 meters. Keep it out of saunas and hot tubs.
Does the Luna Ring Gen 2 vibrate for alarms or notifications?
No. Luna says the ring has no vibration alerts for alarms or messages.
What are the Luna Ring Gen 2 return and warranty terms?
You can return it for a refund within 14 days of delivery. It comes with a 1-year limited hardware warranty from the date of delivery, and a faulty ring is replaced rather than repaired.
Can I pay for the Luna Ring Gen 2 with an HSA or FSA?
Yes. Luna says the ring is HSA and FSA eligible.
How long does Luna Ring Gen 2 delivery take?
Delivery comes in two steps, the sizing kit and then the ring, and Luna says each takes about 5 to 7 business days.
Using it
Do I need a subscription?
No, there is no subscription.
What does it cost?
It costs $249. That is the list price.
Does it work with my phone?
Yes, it works with an iPhone or an Android phone.
How does it connect?
It connects over Bluetooth.
What is it made of?
It is made of titanium.
What ring sizes does it come in?
It comes in US sizes 6 to 14. Order a sizing kit first, because it is not the same fit as a jewellery ring.
Does it measure blood oxygen?
Yes, it measures your blood oxygen.
Does it track HRV?
Yes, it tracks your HRV.
Does it track sleep stages?
Yes, it tracks your sleep stages.
Does it read skin temperature?
Yes, it reads your skin temperature.
Sizing and fit
What sizes does it come in?
Ring sizes 6 to 14.
Water
Can it get wet (shower, pool, swimming)?
Yes, you can shower and swim in it. It is rated to 50m, and for snorkelling.
Price and models
Is there a newer one?
No. The Luna Smart Ring Gen 2 is the current model.