Overview
- The device debuts with two swappable cartridges: Nutrio for hydration, ketones, vitamin C and pH, and Calci for calcium plus hydration and pH to flag kidney stone risk.
- Pricing starts at $349.95 for the Proactive package and $429.95 for Intensive, with replacement cartridges at $99.95 each or $179.95 per pair.
- Each cartridge supports about 22 tests over roughly three months, with results delivered in the Withings app after each analysis.
- Purchase activates a Withings+ membership for insights and recommendations, and the service costs about $100 per year after the initial term.
- The sensor clips inside the toilet and requires scheduled app activation to avoid cross-user readings, and the previously promised Cycle Sync cartridge is not available at launch.