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The role of IoT Data Sims in Industry 4.0: Enabling Field Device Connectivity

Industry 4.0 (fourth industrial revolution) is driving the convergence of physical and digital systems, revolutionising the manufacturing and industrial sectors. At the heart of this transformation is the Internet of Things (IoT), which connects countless devices, sensors, and machines to gather and exchange data.


A key enabler of IoT connectivity are IoT Data SIMs, which are specialised SIM cards designed for the unique requirements of IoT devices. In this article, we explore the crucial role played by IoT Data SIMs in Industry 4.0 and how they are transforming various industries.


M2M SIM cards, also called Universal Integrated Circuit Cards or UICC, store the credentials and security keys that uniquely identify a cellular subscription. The SIM uses a so-called IMSI number, or International Mobile Subscriber Identity, which is unique for every connected device on or off the network, anywhere in the world.


IoT SIM Cards

An IoT/M2M SIM card is a variation of the traditional SIM card used in smartphones, with additional features designed for IoT devices. SIM cards designed for the Industrial Internet of Things include greater durability, security, and flexibility. Machine to Machine SIM cards work by establishing a connection to your host network and transferring data between your device and the rest of your IoT platform.


A significant proportion of IoT devices are remote or mobile and require roaming across multiple networks. However, the way in which your SIM card connects to networks outside of your primary network can vary. Unlike SIM cards for consumers, IoT SIM cards offer the option of either steered or non-steered multi-network roaming to align with your requirements.


Steered IoT SIM cards prioritise the network of your chosen provider, even if there are stronger networks available. They remain connected to your preferred mobile network operator until they are completely out of range, which may result in IoT devices losing connectivity or operating with a very weak signal if no alternative network is selected as a fallback.


On the other hand, non-steered IoT SIM cards do not give preference to specific networks and instead connect to the strongest available network, even if it is not the original provider's network. This can be achieved through agreements between operators that allow non-steered SIM cards to use the strongest available signal. Non-steered connections are particularly crucial for many IoT devices, such as medical or tracking devices, where uninterrupted connectivity is essential.



IoT connected devices are generally any piece of hardware that is connected to the Internet and sends data on either itself or the environment the device is in. IIoT devices are used in a variety of industries, such as Utilities and Energy, Healthcare, Retail, Manufacturing, Transportation & Logistics, Agriculture/Smart Farming, or Automotive.


Examples of connected devices include:

  • Agriculture / Smart Farming: Tractors, irrigation units, livestock, AGVs, farming equipment.

  • Healthcare: Human body parts, drug dispensers, medical equipment, tablets for staff.

  • Manufacturing: Materials, containers, finished goods, vehicles, factory machines, robot arms, worker wearables, warehouse equipment.

  • Retail/Warehouses: POS devices/terminals, store shelves, vending machines.

  • Transportation / Logistics: Trucks (drivetrain, brakes, etc.), cars, EV charge points, railways, roads, bridges, airport facilities, buses, trains, trams, subways, (temporary) road signs-

  • Utilities: Solar panels, wind turbines, pipes, valves, batteries, tanks, electricity poles, electricity meters, tablets for staff.


Reliable and Secure Connectivity


IoT Data SIMs provide reliable and secure connectivity to IoT devices, facilitating seamless data transmission and communication across vast networks. Unlike traditional SIM cards, IoT Data SIMs are optimised for machine-to-machine (M2M) communication, offering extended coverage, improved signal strength, and increased data transmission speeds. These SIMs support various wireless technologies such as 2G, 3G, 4G, and emerging 5G networks, ensuring IoT devices can connect and operate effectively in diverse environments.


Furthermore, IoT Data SIMs incorporate robust security features to protect sensitive data transmitted by IoT devices. Advanced encryption protocols and authentication mechanisms safeguard data integrity and confidentiality, mitigating the risks of cyber threats and unauthorised access. By providing reliable and secure connectivity, IoT Data SIMs enable real-time monitoring, control, and analysis of industrial processes, thereby enhancing operational efficiency and productivity.


What about eUICC? Another clear advantage of electronic IoT SIMs comes in the form of embedded Universal Integrated Circuit Card (eUICC) technology. By making eSIMs and traditional SIM-connected devices completely reprogrammable, this technology provides numerous possibilities to future proof and adapt connected devices remotely. The added flexibility and durability eUICC offers is particularly useful for devices deployed for a long period of time or in hard-to-reach locations. eUICC can be applied to traditional SIM cards of different sizes from mini SIM (2FF) to the smallest nano-SIM (4FF) as well as vacuum-sealed, soldered-down eSIM chips (MFF2).



Global Reach and Scalability


IoT Data SIMs offer global reach and scalability, allowing organisations to deploy and manage IoT devices across geographically dispersed locations. With multi-network roaming capabilities, these SIMs can seamlessly switch between different cellular networks, ensuring uninterrupted connectivity even when devices move between regions or countries. This global coverage empowers industries to expand their operations internationally, opening up new markets and business opportunities.


Moreover, IoT Data SIMs provide scalability by enabling organisations to easily add or remove devices from their IoT networks. Through centralised management platforms, businesses can efficiently provision, monitor, and control thousands or even millions of IoT devices, optimising resource allocation and reducing maintenance costs. The scalability of IoT Data SIMs facilitates the rapid growth of Industry 4.0 applications and enables enterprises to embrace digital transformation with flexibility and ease.



Cost Optimisation and Efficiency


IoT Data SIMs contribute to cost optimisation and efficiency in Industry 4.0 deployments. These SIMs offer data plans tailored specifically for IoT devices, allowing organisations to choose the most suitable pricing models based on their data usage patterns. Data plans can be customised to match the specific requirements of diverse IoT applications, such as predictive maintenance, asset tracking, supply chain optimisation, and energy management. This flexibility in data plans ensures that organisations pay only for the data they require, eliminating unnecessary expenses and optimising cost-efficiency.


Additionally, IoT Data SIMs facilitate remote device management and over-the-air (OTA) firmware updates. This remote management capability minimises the need for manual intervention, reducing maintenance costs and improving operational efficiency. Organisations can remotely monitor device performance, diagnose issues, and implement updates or patches, ensuring the seamless operation of IoT devices and minimising downtime.




The vast amount of data generated by IoT devices in Industry 4.0 can unlock valuable insights when analysed effectively. IoT Data SIMs play a crucial role in collecting and transmitting this data to cloud-based platforms for analysis. By leveraging IoT Data SIMs, industries can harness the power of advanced analytics, machine learning, and artificial intelligence algorithms to gain real-time insights into operational processes, identify patterns, predict failures, and optimise decision-making.


By combining IoT Data SIMs with cloud-based platforms and edge computing technologies, businesses can process data closer to the source, reducing latency and enabling real-time analytics. This capability facilitates proactive maintenance, enabling predictive and preventive actions to avoid costly downtime and enhance overall equipment effectiveness. Moreover, by analysing IoT data, organisations can identify trends, optimise resource allocation, and uncover new revenue streams, driving innovation and competitive advantage.


Interested in Acquiring IoT Data SIMs?




The food and beverage industry is undergoing a significant transformation with the adoption of IoT technologies. IoT SIM cards play a crucial role in this industry by providing numerous benefits that enhance efficiency, safety, and quality control. Here are some exemplified benefits of IoT SIM cards in the food and beverage industry.


IoT SIM Cards for the Food & Beverage Industry

Supply Chain Optimisation

IoT SIM cards contribute to supply chain optimisation by providing real-time visibility and tracking capabilities. Manufacturers can monitor the movement of raw materials, ingredients, and finished products throughout the supply chain, ensuring timely delivery and preventing delays. IoT SIM cards integrated with GPS and location tracking enable manufacturers to track shipments, monitor temperature conditions, and ensure that products are transported within the required temperature range. This visibility enhances inventory management, reduces waste, and improves overall supply chain efficiency.


Cold Chain Management

Maintaining the integrity of temperature-sensitive products is critical in the food and beverage industry. IoT SIM cards enable real-time monitoring of temperature and humidity levels throughout the supply chain. By integrating IoT sensors with these SIM cards, companies can track and analyse data, ensuring that perishable goods are stored and transported under optimal conditions. Any deviations from the desired temperature range can trigger alerts, allowing prompt action to prevent spoilage and maintain product quality.


Inventory Management

Efficient inventory management is essential for avoiding stockouts, reducing waste, and optimising costs. IoT SIM cards enable real-time tracking and monitoring of inventory levels. By integrating IoT sensors with SIM cards, businesses can accurately monitor stock levels, automatically trigger reordering processes when inventory reaches predefined thresholds, and improve overall supply chain visibility. This data-driven approach minimises stockouts, avoids overstocking, and streamlines the inventory management process.


Quality Control, Traceability & Compliance

IoT SIM cards facilitate quality control and traceability, which are crucial in ensuring food safety and compliance with regulations. By equipping products, packaging, or containers with IoT sensors and SIM cards, companies can monitor and track product conditions throughout the entire production and distribution process. This allows for real-time data collection, including temperature, humidity, pH levels, location, and other relevant parameters. In the event of an issue or contamination, businesses can quickly identify the affected products, trace their origins, and initiate targeted recalls, minimising potential health risks and protecting brand reputation. In case of deviations, manufacturers receive immediate alerts, enabling prompt corrective actions and preventing the production of substandard or unsafe products. Moreover, the data collected by IoT SIM cards provides manufacturers with comprehensive traceability records, facilitating compliance with regulatory requirements and supporting recall management if needed.


Remote Equipment Monitoring for Maintenance and Predictive Analytics

Unplanned equipment downtime can disrupt operations and result in significant financial losses. IoT SIM cards integrated with sensors can continuously monitor equipment performance, capturing data on factors like temperature, pressure, vibration, and power consumption. This data enables predictive maintenance, where algorithms analyse patterns and identify potential issues before they lead to breakdowns. By addressing maintenance needs proactively, businesses can reduce downtime, extend equipment lifespan, and optimise maintenance schedules, resulting in increased productivity and cost savings.




For automotive manufacturers, IoT SIM cards bring numerous benefits that enhance production efficiency, vehicle performance, and customer experience. Here are some benefits of IoT SIM cards for an automotive manufacturer.


IoT SIM Cards for the Automotive Industry

Manufacturing Process Optimisation

IoT SIM cards facilitate real-time monitoring and optimisation of manufacturing processes in automotive plants. By integrating IoT sensors with these SIM cards, manufacturers can collect data on production line efficiency, equipment performance, and energy usage. This data enables manufacturers to identify bottlenecks, optimise workflows, reduce downtime, and improve overall production efficiency. IoT SIM cards also enable remote monitoring of critical systems, allowing for prompt maintenance and minimising production disruptions.


Supply Chain Visibility

IoT SIM cards enhance supply chain visibility for automotive manufacturers. By integrating IoT sensors with these SIM cards, manufacturers can track and monitor the movement of components, parts, and finished vehicles across the supply chain. Real-time data on location, temperature, and other parameters helps optimise logistics, minimise delays, and ensure timely delivery. Improved supply chain visibility leads to better inventory management, reduced costs, and enhanced customer satisfaction.



IoT SIM Cards for Warehouses & the Logistics Industry


For the warehouse & logistics industry, IoT SIM cards offer several benefits that enhance operational efficiency, inventory management, and security. Here the benefits of IoT SIM cards for warehouse owners:


IoT SIM Cards for Warehouses & the Logistics Industry

Inventory Tracking

IoT SIM cards enable real-time tracking of inventory within the warehouse. By integrating IoT sensors with these SIM cards, warehouse owners can monitor the location, movement, and status of products in real-time. This visibility helps optimise inventory management, streamline order fulfillment, and reduce stockouts or overstocking. Warehouse owners can also set up automated alerts and notifications for low stock levels or irregularities, enabling timely replenishment and preventing inventory discrepancies.


Asset Monitoring

IoT SIM cards facilitate the monitoring of warehouse assets, such as AGVs, forklifts, pallet jacks, and equipment. By equipping these assets with IoT sensors and SIM cards, owners can track their location, usage, and performance. This data allows for better asset utilisation, preventive maintenance planning, and reducing the risk of theft or unauthorised usage. Real-time insights provided by IoT SIM cards enable warehouse owners to optimise asset allocation, identify underused equipment, and improve operational efficiency.


Temperature and Environment Monitoring

Maintaining optimal temperature and environmental conditions is crucial for certain products in a warehouse, such as perishable goods or sensitive materials. IoT SIM cards enable continuous monitoring of temperature, humidity, and other environmental factors within the warehouse. Integrated IoT sensors provide real-time data on these parameters, triggering alerts and notifications if conditions deviate from the desired range. This helps ensure the quality and integrity of stored goods, preventing spoilage, and reducing waste.


IoT SIM cards contribute to enhanced security and access control in warehouses. By integrating IoT-enabled security systems with these SIM cards, warehouse owners can monitor entry points, video surveillance, and alarm systems in real-time. In the event of unauthorised access or security breaches, immediate alerts can be sent to designated personnel or security providers. IoT SIM cards enable remote management and control of security systems, enabling efficient response and mitigating potential risks.


Energy Management

Energy costs represent a significant expense for warehouse operations. IoT SIM cards enable remote monitoring and control of energy-consuming systems, such as lighting, HVAC, and machinery. By integrating IoT sensors with these SIM cards, warehouse owners can track and analyse energy consumption patterns, identify inefficiencies, and implement energy-saving measures. Real-time data provided by IoT SIM cards helps optimise energy usage, reduce costs, and support sustainability efforts.


Conclusion on the Benefits of IoT SIMs for Manufacturers


IoT Data SIMs are revolutionising Industry 4.0 by providing reliable and secure connectivity, global reach, scalability, cost optimisation, and enhanced analytics capabilities. These specialised SIM cards enable seamless communication among IoT devices, unlocking the potential of the Internet of Things in transforming industries. As organisations continue to embrace the digital revolution, IoT Data SIMs will remain a critical component in realising the full potential of Industry 4.0, driving innovation, efficiency, and productivity across various sectors.


IoT SIMs not only need to keep devices connected, but they need to be remotely manageable as well. This is because they are typically activated in bulk, whereas regular SIMs are activated one at a time by an individual consumer. IoT SIMs are also created to support data plan aggregation, where every SIM added to an IoT project increases the data cap. This type of data plans make IIoT projects more affordable and cost-effective


For global IoT deployments, IoT Sim Cards require multi-network access without the need for different SIMs. For this reason, Polestar’s universal SIM cards connect to 2G, 3G, 4G, 5G, LTE-M & NB-IoT networks across more than 260 roaming partners, in more than 160 countries and with multiple roaming partners in most countries.

This means that as an IoT deployment grows there’s no need to integrate with new providers, given that our Multi-Sim technology switch profiles automatically and under request.


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