About eSIM technology

eSIM technology is a method that uses a programmable eUICC chip to store and manage digital cellular subscriber information. This programmable chip - eUICC chip - is a small, secure chip that can store and update digital credentials used to identify the device on cellular networks . This chip supports downloading, activating, and switching between mobile carrier profiles through software rather than relying on fixed, pre-programmed information. This combination enables the management of cellular connectivity through software instead of swapping physical SIM cards in and out of devices. This gives you more flexibility and control over how your Digi eSIM-capable devices connect to mobile networks, as well as the cellular plans you choose.

In Digi Remote Manager, monitor eSIM status by checking whether the device has successfully obtained a carrier profile (for example, activation codes showing Available, Downloaded, or Failed) and whether the device is currently registered and passing data on the cellular network using the intended profile. This helps confirm both successful provisioning and ongoing connectivity.

What eSIM allows you to do

  • Activate cellular service remotely — no physical SIM swap needed

  • Switch carriers or plans digitally

  • Enable secure provisioning for IoT devices, routers, and industrial equipment

  • Reduce logistics costs (no SIM card shipping, no mechanical SIM tray)

Why eSIM is useful in IoT and Digi devices

  • Simplifies deployment of large fleets (remote provisioning)

  • Reduces failure points (no SIM tray damage)

  • Improves security through standardized provisioning flows

  • Supports global deployments without handling multiple SIM card types

In simple terms

Digi eSIM technology enables carrier switching and provisioning without physical SIM changes so you have greater flexibility, control, and security in managing your wide-area networks.