Validation Study of WITHINGS BPM Core for the Detection of Atrial Fibrillation

Inclusion Criteria: * male or female who are 18 years or older * Subject who signed the written informed consent form, * Able to communicate effectively with and follow instructions from the study staff * Person with an arm circumference between 22 and 42 cm Exclusion Criteria: * Vulnerable subject with regard to regulations * Pregnant, parturient or breastfeeding woman, * Subject who is deprived of liberty by judicial, medical or administrative decision, * Underage subject, * Legally protected subject, or subject who is unable to sign the written informed consent form, * Subject who is not beneficiary or not affiliated to a social security scheme, * Subject within several of the above categories, * Subject who refused to participate in the study, * Subject in linguistic or psychic incapacity to sign a written informed consent form, * Subject in physical incapacity to wear a blood pressure monitor * Subject with electrical stimulation by pacemaker * Significant tremor that prevents subject from being able to hold still * Known sensitivity to medical adhesives, isopropyl alcohol, or ECG electrodes