RPM and IoMT work together to bring a patient’s health readings from home to the people who care for them. If you have asked “what is IoMT,” here is the short answer. IoMT is the network of connected medical devices, software, and systems that collect and share health data. Remote patient monitoring (RPM) is one of the clearest examples of IoMT in daily care.
The stakes are high. The nation spends $5.3 trillion a year on health care, according to the CDC. Ninety percent of that goes to people with chronic and mental health conditions. Most of that care happens between appointments. Connected devices help care teams see what is happening in that time.
This guide explains what IoMT is and how RPM and IoMT fit together. It also walks through each layer of the system and how to keep patient data secure.
What Is IoMT?
IoMT stands for the Internet of Medical Things. It describes medical devices and software that connect to networks and share health data with care teams, platforms, and health records. A cellular blood pressure monitor in a patient’s kitchen is part of the IoMT. So is the platform that receives the reading and the dashboard a nurse uses to review it.
The word “medical” is what sets IoMT apart. These devices measure clinical data that care teams use to make decisions. That raises the bar for accuracy, security, and reliability. Tenovi’s look at new research on IoMT in healthcare covers uses beyond RPM, from hospitals to clinical research.
IoMT vs. IoT
The Internet of Things (IoT) covers any connected device, from smart thermostats to fitness trackers. IoMT is the health care branch of that larger network. A step counter on a smartwatch is IoT. A blood glucose meter that sends readings to a care team is IoMT. Tenovi’s post on RPM and IoT covers the broader IoT side in more detail.
Common IoMT Devices in RPM
Remote patient monitoring programs rely on a core set of connected devices:
- Blood pressure monitors for hypertension and heart disease
- Weight scales for heart failure and weight management
- Blood glucose meters for diabetes
- Pulse oximeters for COPD and other lung conditions
- Thermometers for infection monitoring after surgery or treatment
- Smart pill boxes that record when patients take medication
Each device captures one type of reading. Together, they give a care team a fuller picture of a patient’s health over time.
How RPM and IoMT Work Together
RPM is the care model. IoMT is the technology that makes it possible. A care team decides what to monitor and how to respond. IoMT devices and networks deliver the readings that guide those decisions.
The National Institute of Standards and Technology (NIST) describes the RPM ecosystem as three groups working together in its guide, NIST SP 1800-30. The groups are health care delivery organizations, telehealth platform providers, and patients at home. Each one manages its own part of the system.
IoMT systems are often described in four layers. Each layer has a clear job.
1) Perception Layer: Devices and Sensors
This is where data starts. Sensors inside a blood pressure cuff, scale, or glucose meter take a measurement and turn it into a digital signal. Accuracy matters most here. A reading that starts out wrong stays wrong all the way to the care team.
2) Network Layer: Getting Readings Out of the Home
Next, the reading has to leave the device. Some devices use Bluetooth to reach a nearby phone or hub. Others connect over Wi-Fi. Cellular devices send data on their own, with no pairing, no apps, and no home internet needed.
Each option has tradeoffs for patients and care teams. Tenovi’s guide to cellular and Bluetooth devices compares them in detail. Tenovi supports both. Standalone cellular devices have their own SIMs. Bluetooth devices connect through the Tenovi Cellular Gateway, which sends readings over a low-power cellular network instead of a patient’s phone.
3) Data Layer: Storage and Processing
Once a reading arrives, it is stored, organized, and checked. Data should be encrypted in transit and at rest. From there, it flows into the RPM platform or electronic health record (EHR) the care team already uses, usually through an API.
4) Application Layer: Dashboards, Alerts, and Analytics
This is the layer clinicians see. Readings appear as trends on an RPM dashboard. Alerts flag readings outside the range set for each patient. Some platforms add analytics or AI to spot patterns. Clinicians still review the data and make the care decisions.
Benefits of RPM and IoMT for Patients and Care Teams
When the layers work well, RPM and IoMT give patients and clinicians a steady connection between visits. Here are the main benefits.
Earlier Intervention Between Visits
Care teams don’t have to wait for the next appointment to see a problem. A rising blood pressure trend or sudden weight gain can prompt a call that same day. The evidence is strongest in heart failure. In the TIM-HF2 trial, 1,538 patients were followed for about a year. Patients who sent daily readings to a telemedical center lost fewer days to unplanned cardiovascular hospital stays or death. They also had lower all-cause mortality than patients in usual care.
Less Work for Patients
The best IoMT devices ask very little of the patient. A cellular device works out of the box. The patient takes a reading, and it goes to the care team. There is nothing to pair, download, or log in to. The Tenovi Gateway adds a simple visual cue. A red light means it is time to take a reading. A green light means the reading went through.
A Complete Record Over Time
A single office reading is a snapshot. IoMT devices build a record over weeks and months. That history helps clinicians see whether a treatment is working and adjust it with confidence.
Care That Reaches Patients at Home
Patients who live far from a clinic, or who have trouble getting to appointments, can still stay connected. Readings travel instead of the patient. That matters for rural patients, people with limited mobility, and those who rely on a caregiver for rides.
Support for Chronic Disease Management
Conditions like hypertension, diabetes, heart failure, and COPD need ongoing attention. Connected devices let care teams follow several measures for one patient in a single place. Patients get more consistent support, and small changes are less likely to go unnoticed.
IoMT Security: Protecting Patient Data in RPM
Every connected device is also a point that needs protection. Security is part of patient safety in RPM and IoMT, because a compromised device can mean lost readings or exposed health information.
NIST SP 1800-30 warns that without adequate privacy and cybersecurity measures, unauthorized individuals may expose sensitive data or disrupt patient monitoring. It also notes that technology alone may not be enough. NIST recommends combining people, processes, and technology into one risk strategy.
FDA Requirements for Connected Devices
Federal rules have tightened in recent years. Section 524B of the Federal Food, Drug, and Cosmetic Act took effect on March 29, 2023. It applies to “cyber devices.” The FDA defines these as devices that meet three tests. They include sponsor-validated software, can connect to the internet, and have features that could be vulnerable to cyber threats.
Sponsors of these devices must:
- Submit a plan to monitor, identify, and address postmarket vulnerabilities in a reasonable time
- Maintain processes to keep the device secure and make updates and patches available
- Provide a software bill of materials (SBOM) that lists commercial, open-source, and off-the-shelf software components
The FDA issued its latest final guidance on premarket cybersecurity submissions on June 27, 2025.
Questions to Ask Before Choosing IoMT Devices
Care teams and RPM software companies can use these questions when they evaluate a device partner:
- How is data protected? Ask whether data is encrypted in transit and at rest.
- What certifications does the vendor hold? Look for HIPAA compliance and an independent audit such as SOC 2 Type 2.
- How are devices updated? Find out how security patches reach devices already in patients’ homes.
- How do devices connect? Cellular devices avoid relying on a patient’s home Wi-Fi or phone.
- How does data reach your platform? A single API makes it easier to bring readings into your existing workflow.
- Who handles logistics? Shipping, setup, and replacement devices affect how quickly patients start sending readings.
Frequently Asked Questions About RPM and IoMT
This section answers common questions about RPM and IoMT. It covers what IoMT is, how it differs from IoT, how IoMT devices are used, and how to keep them secure.
1) What is IoMT?
IoMT, or the Internet of Medical Things, is the network of connected medical devices, software, and systems that collect and share health data. It includes devices such as blood pressure monitors, scales, and glucose meters that send readings to care teams.
2) How are RPM and IoMT related?
RPM is a care model in which clinicians track patient health data from outside the clinic. IoMT is the technology behind it. IoMT devices capture readings at home and send them to the platforms care teams use to review and respond.
3) What are IoMT devices used for?
IoMT devices are used to monitor vital signs and health measures, such as blood pressure, weight, blood glucose, oxygen saturation, and temperature. In RPM, they help care teams manage chronic conditions and follow patients after a hospital stay.
4) What is the difference between IoT and IoMT?
IoT includes any internet-connected device, such as a smart speaker or fitness tracker. IoMT is the health care subset. Its devices collect clinical data that informs medical decisions, so accuracy and security standards are higher.
5) How do you secure IoMT devices?
Start with devices that encrypt data in transit and at rest. Choose vendors with HIPAA compliance and independent audits such as SOC 2 Type 2. Confirm how security updates reach devices in the field. For FDA-regulated cyber devices, sponsors must also provide a software bill of materials and a plan to address vulnerabilities.
6) Do IoMT devices need Wi-Fi or a smartphone?
Not always. Bluetooth devices usually pair with a phone or hub, and Wi-Fi devices need a home network. Cellular devices send readings on their own, with no Wi-Fi, apps, or smartphone required.
Understanding RPM and IoMT
RPM and IoMT are two sides of the same model. RPM is how care teams monitor patients between visits. IoMT is the connected technology that makes those readings possible. The system works in layers, from the sensor in the device to the dashboard a clinician reviews. Each layer needs to be accurate, reliable, and secure. Research in heart failure shows what daily monitoring can do when a responsive care team stands behind it. With FDA cybersecurity requirements and NIST guidance in place, care teams also have a clearer path to keeping patient data safe.
Tenovi is the remote monitoring infrastructure behind care that goes home with the patient. We offer 60+ devices, including standalone cellular devices and Bluetooth devices that connect through the Tenovi Cellular Gateway. Readings reach your platform through one API, with no syncing, no apps, and no Wi-Fi for patients to manage. Tenovi is HIPAA compliant and SOC 2 Type 2, and we handle fulfillment, provisioning and support. Contact us for a free demo and consultation to see how Tenovi can support your RPM program.
