Argus 2.0 Adoption Study

* Provision of signed and dated informed consent form

* Male or female, aged 18 years and older

* Clinical diagnosis of type 1 or type 2 diabetes and/or prediabetes for any duration

* Sufficient venous access for one IV line

* Stated willingness to comply with all study procedures and availability for the duration of the study

* Willing to wear the required number of CGM systems for the total duration of the study (up to 15 days of total wear), including up to two Argus devices and at least one provided, commercially available, CGM device

* Willing and able to use a compatible personal iOS or Android smartphone with - Bluetooth capability to install and use the study application, and to pair and maintain continuous Bluetooth communication between the smartphone and the investigational device for the required wear period

* Has reliable access to their personal smartphone for the duration of participation and agrees to keep Bluetooth enabled and the study app running as instructed

* Known or suspected hypersensitivity to any of the components of the investigational device

* Known allergy to medical grade adhesives

* Presence of any injury, infection, atypical skin condition (such as hyperkeratosis or hyperpigmentation) or tattoo on the wrists

* Participation in any clinical trial investigation of a medical device or any medicinal product in clinical development within 30 days

* Required or scheduled to have a Magnetic Resonance Imaging (MRI) scan, Computed Tomography (CT) scan, or diathermy during the study wear period

* Blood donation or blood loss of more than 500 mL within the last 3 months

* Presence of anemia as demonstrated by hematocrit measurements below 36.0% for males or 33.0% for females

* Presence of an active implantable medical device such as a pacemaker

* Presence or history of a cardiovascular disease including stable and unstable angina pectoris, myocardial infarction, transient ischemic attack, stroke, cardiac decompensation, clinically significant arrhythmias, or clinically significant conduction disorders

* Any history or presence of cancer except basal cell skin cancer or squamous cell skin cancer

* Presence of signs of acute illness or immunodeficiency Presence of any serious systemic infectious disease during four weeks prior to the intervention

* Presence of clinically significant abnormal screening laboratory tests or standard 12 lead electrocardiogram after 5 minutes resting in supine position at screening

* History of significant alcohol or drug abuse, or current alcohol consumption exceeding approximately two standard drinks per day for males or one standard drink per day for females

* Inability or unwillingness to refrain from smoking for the duration of visits History of diagnosis for hepatitis B, hepatitis C, HIV 1, or HIV 2

* Clinically relevant comorbidity capable of constituting a risk for the participant or interfering with interpretation of data as judged by the investigator, including but not limited to end stage renal disease currently managed by dialysis or anticipating initiating dialysis during the study wear period, current usage of hydroxyurea medications, or significant usage of acetaminophen over 1 g every 6 hours

* Mental incapacity, unwillingness, or language barriers precluding adequate understanding or cooperation Pregnancy or current breastfeeding

* Current or past affiliation with the investigational site, sponsor, or study personnel, including being an employee, contractor, or immediate family member of any individual directly involved in the trial, or current employment with, contractor relationship with, or significant financial interest in companies involved in glucose monitoring or diabetes related products that could create a conflict of interest or bias study results

* Consideration of unsuitability for inclusion by investigator Inability or unwillingness to use a compatible personal smartphone to install and operate the study app and maintain Bluetooth connectivity as required