evidence: After you have calibrated your Galaxy Watch with an upper-arm, cuff-based blood pressure monitor, you're ready to use the Samsung Health Monitor on your Galaxy Watch to measure your blood pressure. You won't need to use the cuff-based monitor again until the next calibration in 28 days. [...] 1. The Blood Pressure app should not be used for any diagnostic purposes regarding hypertension or other heart conditions. The Blood Pressure app is not meant to replace traditional methods of diagnosis or treatment by a qualified healthcare professional. [...] - Samsung Health Monitor Blood Pressure app is not intended for any diagnostic purposes regarding hypertension or other heart conditions, or for users under 22 years old. Users should not interpret results, or take clinical action based on the device output without consultation with a qualified healthcare professional. The Blood Pressure app is not intended to replace traditional methods of diagnosis or treatment.