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IoT-Hub Overview difference between number of IoT Devices and Total IoT-Devices

Anonymous
2023-03-30T08:37:56.45+00:00

In the IoT Hub Overview section, the "IoT Hub Usage" widget and the "Total IoT Devices" widget may list different numbers for registered devices. Is there an explanation for this?

Azure IoT Hub
Azure IoT Hub
An Azure service that enables bidirectional communication between internet of things (IoT) devices and applications.
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  1. AshokPeddakotla-MSFT 35,971 Reputation points Moderator
    2023-03-30T09:34:13.17+00:00

    @Anonymous Welcome to Microsoft Q&A forum!

    In the IoT Hub Overview section, the "IoT Hub Usage" widget and the "Total IoT Devices" widget may list different numbers for registered devices. Is there an explanation for this?

    What is the total number of devices registered in your IoT Hub? Does all your devices sending telemetry?

    As Sedat mentioned, the "IoT Hub Usage" widget and the "Total IoT Devices" widget may show different numbers due to differences in their counting criteria, delays in updating, or issues with device configuration and connectivity.

    User's image

    As mentioned in the above screenshot, The "IoT Hub Usage" widget shows the number of devices that have connected to the IoT Hub in the last 7 days, while the "Total IoT Devices" widget shows the total number of devices that have ever been registered with the IoT Hub.

    Please go through Monitoring Azure IoT Hub documentation to understand more.

    Hope this clarifies.

    If you need further help in this matter, please comment in the below section and we are happy to discuss!

    If this answers your query, do click Accept Answer and Yes for this answer as helpful. And, if you have any further query do let us know by commenting in the below section.

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  1. Sedat SALMAN 14,180 Reputation points MVP
    2023-03-30T08:51:24.44+00:00
    1. IoT Hub Usage: This widget shows the number of devices currently connected to the IoT Hub. It represents active devices that have established a connection with the IoT Hub, either by sending telemetry data, receiving cloud-to-device messages, or performing device management operations like updating device twin properties.
    2. Total IoT Devices: This widget displays the total number of devices registered in the IoT Hub's identity registry. It includes both active and inactive devices, regardless of their connection status. These devices may or may not have established a connection with the IoT Hub.

    The discrepancy between the numbers in these widgets can arise when some devices are registered in the IoT Hub but not actively connected.

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