Vanta turns your existing wearable's Health Connect data into honest Recovery, Strain & Energy scores — no expensive hardware, no subscription. A built-in AI Coach (Gemini, DeepSeek, or fully on-device Gemma via GPU) explains every number and coaches you in plain language, with all health data staying on your phone. Open source, private by design, with 7-day baselines, VANTIX training load, biological age, widgets, and 59 automated tests. A free, privacy-first.