Watch ECG factor research

Research / no medical claims

The first question is platform feasibility: whether compatible watches can expose enough opt-in ECG waveform data to build a repeatable per-user identity template. If not, this stays a concept until suitable hardware or APIs exist.

• Optional factor only for compatible devices and regions.
• No wellness, diagnosis, or health interpretation claims.
• Potential future fit for non-camera/non-microphone assurance if validation supports it.