This study aims to launch an effectiveness-implementation hybrid randomized trial to adapt a multi-faceted hypertension (HTN) management program shown to work in integrated healthcare delivery systems to a safety net healthcare system, San Francisco Health Network (SFHN). In Aim 1 of this study, investigators will offer patients brief in-person training to support their use of the online patient portal and basics about text messaging. Investigators will examine pre-post training changes in technology use overall as well as by specific patient subgroups with known differences in technology uptake. In Aim 2 investigators will conduct a three-arm randomized controlled trial to compare varying levels of implementation support: 1) cellular-enabled blood pressure (BP) monitors (with minimal implementation support), 2) cellular-enabled BP monitors with protocol-based implementation support (text reminders for patients; aggregated BP summaries sent to primary care providers), and 3) cellular-enabled BP monitors and pharmacist-led support (pharmacist coaching and independent medication adjustments). In Aim 3 investigators will use a mixed methods approach to evaluate key implementation outcomes, guided by the Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework, of adapting an existing, evidence-based home BP monitoring program.