Personal AI Health Assistant Inside Your Smart Ring

Kira AI is the AI health coach and actionable insight engine inside Circular Ring 2. It analyzes over 140 biomarkers from the ring, including sleep, heart rate, HRV, stress, recovery, respiration, blood oxygen, temperature, and activity, then turns them into plain-language insights and personalized daily recommendations you can act on the same day.

Kira AI does not stop at scores or trend lines. It reads every signal at once, correlates them against your personal 14-day baseline, and generates actionable recommendations written as clear next steps. Most wearable AI features summarize. Kira AI tells you what to do.

No. Kira's core guidance is included with your Ring 2, with no mandatory subscription. A few optional Pro features may cost extra.

Most smart rings either charge a monthly fee for AI coaching or analyze a small number of metrics in isolation. Kira AI reads over 140 biomarkers simultaneously, builds a personal 14-day rolling baseline, correlates signals across sleep, stress, recovery, heart, and activity, and translates everything into actionable daily recommendations. It is included with the ring rather than locked behind a subscription.

Kira AI analyzes sleep stages, sleep duration, sleep consistency, heart rate, heart rate variability, stress score, recovery score, respiratory rate, SpO2, temperature trends, activity load, energy score, ECG readings, women's health signals, sport sessions, and any manual notes you add about travel, caffeine, alcohol, illness, workouts, or stress events.

Kira AI's recommendations are tailored to your data and can include sleep timing adjustments, recovery pacing suggestions, training load awareness, hydration cues, breathing practice prompts, stress management timing, illness-awareness signals based on early biometric shifts, and habit-level guidance to improve consistency. Each insight is written as a clear next step you can act on the same day.

Kira AI begins generating reliable, actionable recommendations after a 14-day calibration window. This is the time it needs to learn your personal baseline. Insights continue to improve the longer you wear the ring, because it keeps refining its understanding of how your body responds to your habits.

Yes. Kira AI works on a 14-day rolling baseline, which means it is constantly updating its view of what is normal for you. The longer you wear the ring, the more accurate and personalized its actionable insights become.

Kira AI generates one personalized, actionable recommendation a day, on demand. Daily summaries appear automatically, and pattern detection runs continuously in the background. Trend explanations and multi-signal correlations surface throughout the week as patterns emerge.

Kira AI can surface early biometric patterns that often precede illness, including changes in resting heart rate, respiratory rate, and temperature. It does not diagnose illness. It flags the pattern and gives you an actionable recommendation, usually to rest, hydrate, or pay attention before symptoms arrive.

No. Kira AI does not diagnose conditions, prescribe treatment, or replace medical professionals. It translates biometric signals into lifestyle and behavioral guidance you can act on. For anything clinical, the Circular app generates PDF reports and trend summaries designed to be shared with your doctor.

Yes. You can log notes about travel, caffeine, alcohol, illness, workouts, late meals, and stress events. Kira folds these into its interpretation, which sharpens the accuracy and relevance of its actionable recommendations.

Yes. After you take an ECG reading, Kira analyzes it in context with your sleep, HRV, stress, recovery, and respiratory data. It does not interpret the ECG waveform itself for clinical purposes, but it connects the result to your broader health picture and surfaces the relevant action.

Kira integrates with the Women's Health Suite to read cycle-linked physiological changes in temperature, HRV, sleep, and energy. It explains what is typical for your body across different phases, flags shifts that fall outside your personal baseline, and recommends what to adjust in each phase.

Yes. We encrypt data between your ring, the app, and our cloud systems. We do not sell your health data or use it for advertising, though we process and share limited data when needed to run, protect, and improve the service.

Two-way chat is part of Kira+ AI, the upcoming premium tier. Today, Kira AI generates daily actionable recommendations, summaries, and pattern explanations on demand inside the app.

Your ring measures movement and body signals. The Circular app and our systems turn them into scores, trends, and Kira's guidance. You do not need any extra hardware.

Yes. Kira AI reads training loads against recovery and energy trends and generates actionable pacing recommendations. This is particularly useful for athletes managing cumulative fatigue across training blocks or peaking for competition.

Yes. Kira AI analyzes your sleep stages, sleep duration, sleep consistency, and the inputs that affect them, including stress, late activity, and temperature. It then recommends specific adjustments tailored to your patterns.