Last year Apple launched the Apple Watch Series 3 with an embedded SIM (eSIM). The Pixel 2 and Pixel 2 XL also come with eSIMs. This new SIM technology replaces the current SIM cards we use. Yesterday, ARM introduced iSIM- a similar technology but for IoT devices.
The integrated SIM (iSIM) will provide a way for IoT devices to have cellular identities. The new technology is also said to be GSMA Embedded SIM Specifications compliant.
Wondering how it is different from eSIM? Unlike an eSIM which is separate from the device’s main chipset and modem, iSIM combines everything into a single SoC.
So you have the main processor, modem, and SIM as a single component. ARM says the SIM is stored in a secure enclave with enhanced hardware security like its Arm CryptoIsland.
The advantage this brings is a significant reduction in production cost.
READ MORE: GizmoChina Explains: How Does An eSIM Work?
With more devices getting connected, ARM’s iSIM should help them get connected in a cheap and safe way. The technology is reported to have already received support from SoftBanck, BT, and Sprint.