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Mini tools
Smart Ring
Luna Ring Gen 2
by Luna
$329.00
Available
AI-powered titanium smart ring that tracks sleep, recovery, stress, activity, fertility, heart health, and provides personalized wellness insights through LifeOS AI.
Form factor
Ring
Release date
2025-10-31
Processor
Proprietary wearable processor
Battery life
Up to 5 days
OS / Platform
LifeOS AI, iOS, Android
Specifications
Form factor
Ring
Processor
Proprietary wearable processor
Battery life
Up to 5 days
OS / Platform
LifeOS AI, iOS, Android
Made in
IN
Release date
2025-10-31
Connectivity
Bluetooth
AI features
On-device AICloud AIVoice AssistantHealth Monitoring
Sensors
Optical heart-rate sensorSpO₂ sensorPPG sensorskin temperature sensorphotodiodes3-axis accelerometer
Primary use cases
Health & Fitness
Colors
Stardust SilverRose GoldSunlit GoldMidnight BlackLunar Black
Additional information
Fighter-jet grade titanium construction, fertility tracking, menstrual cycle tracking, stress monitoring, readiness score, recovery analysis, HRV tracking, sleep stage tracking, LifeOS AI health coach, Siri support, no subscription required, supports 35+ workout modes, Philips Biosensing validated accuracy (98.2%) .
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