What is SpO2, ECG and BP claims?
Health sensors on the wrist.
Short answer
Treat these as trend indicators, never as diagnosis.
SpO2, ECG and BP claims when buying a smartwatch & fitness band
Health sensors on the wrist.
Why it matters: Only medically certified ECG is meaningful; wrist BP readings are indicative at best.
Look for: Treat these as trend indicators, never as diagnosis.
Full Smartwatch & Fitness Band buying guide