Apple Watch Series 4 or higher
Samsung S-patch
Boston Scientific : Preventice  – Bodyguardian
VPATCH FROM VPATCH MEDICAL SYSTEMS
Vital Connect’s HealthPatch
Viatom Technologies
KardiaMobile : AliveCor 2 lead and 6 lead EKG
Cardiac Design’s ecg check $79.99
GM3 iECG for iphone and PC
Nassif Associates Cardiocard Mobile (android compatible)
Omron Heartscan and  Healthguide Watch
Aerotel Medical Systems Heartline 12 Lead Remote Monitoring
Phillips : BioTelemetry : CardioNet and Lifewatch
Medtronic :  = SEEq MCT  and Cardiocom
Choicemmed 5/12 lead multi param Patient Monitor
Pulse Biomedical Inc’s QRS-Card(TM)/232
Midmark legacy EKG system
GE Medical System’s legacy EKG systems
QT Medical at Home Remote 12 lead EKG
Spacelabs legacy EKG system
Hillrom : Welch Allyn legacy EKG systems
Vectracor : QRS Diagnostic 12 lead EKG PC based
Biotronik  Implantable Monitor