Overview
- Luna Voice lets wearers log meals, drinks, supplements, workouts, and feelings by speaking to the ring.
- Users can ask about sleep, stress, and recovery, create workout or nutrition plans, and receive AI coaching during exercise with post‑workout insights.
- Android users invoke Luna directly, whereas iOS access routes through Siri due to platform rules.
- The Gen 2 ring tracks heart rate, heart rate variability, SpO2, sleep, and skin temperature; battery lasts 4–7 days with a case extending up to about 30 days; price is $330/£300 with no subscription.
- Sales continue outside the United States due to an Oura-related dispute, and independent real‑world testing of Luna Voice has not yet been published.