iSIM : The future SIM

iSIM: The future of SIM




SIM stands for subscriber identity module. It is used to call or to use cellular data over a prescribed network. Sim is the thing which makes us capable to do conversation over the phone to our friends, family or relatives.

It is the most important part of the phone without this sim thing our phones are like a box. We are not able to do a single thing on a phone without sim. Sim helps us to reach out via a cellular network of different companies like "AIRTEL, JIO, IDEA(INDIAN)", VODAFONE(BRITISH).


oneplus 7 pro issues

Sim technology is growing smaller day by day due to the compactness and sleekness of the phone. The demand for compact and sleek smartphones made the mind of engineers to develop new sim technology which takes a very little space in the phones.



Keeping this thing in mind engineers of ARM develope a new sim technology iSIM which is commonly known as integrated-sim. This iSIM is developed but not standardised by the officials yet. This technology receives great welcome by the Tech-giant, all are saying this the future of the sim technology.



We are continuously developing our sim technology since 1991. There are five stages of the sim technology starting from full-size sim to e-sim.

                                               HEIGHT                               WIDTH                              DEPTH

  • Full-size                 3.37 in (85.6 mm)         2.12 in (53.98 mm)        0.02992 in (0.76 mm)
  • Mini-SIM        0.98425 in (25 mm)        0.59055 in (15 mm)        0.02992 in (0.76 mm)
  • Micro-SIM        0.59055 in (15 mm)        0.47244 in (12 mm)        0.02992 in (0.76 mm)
  • Nano-SIM        0.48425 in (12.3 mm)     0.34645 in (8.8 mm)    0.02637 in (0.67 mm)
  • Embedded-SIM      0.23622 in (6 mm)        0.19685 in (5 mm)     0.03937 in (1 mm) less than


                                    FORM FACTOR STANDARD REFERENCE             DEVICE USING IT
  • Full-size (1991)              1FF       ISO/IEC 7810:2003, ID-1            (credit card size)
  • Mini-SIM(1996)             2FF       ISO/IEC 7810:2003, ID-000              Early mobile phones
  • Micro-SIM(2003)         3FF       ETSI TS 102 221 V9.0.0, Mini-UICC iPhone 4
  • Nano-SIM(2012)            4FF       ETSI TS 102 221 V11.0.0                 iPhone 5
  • Embedded-SIM(2016)                   JEDEC Design Guide 4.8, SON-8 iPhone XS, iPhone XS Max, iPhone XR







Now, there is a chance of adding a phase as iSim(2019), developed by ARM. iSim is commonly known as integrated sim. As the name depicts, integrated i.e. the sim is integrated into the SOC(System on a chip). iSim doesn't need any dedicated processor, it is just on the processor like a cellular modem. The sim is installed on the processor, there is no need to swap the physical things(Micro or nano Sim) of plastics to change your operator. There will be a new method to change your operator by scanning some code or something like that which can configure the iSim. 

Advantages of iSim:

  • Space:  As the size of the iSim is very small as compared to Nano-sim. The space for physical sim is no more needed. our phone will be slimmer due to iSim.
  • Management: The SIM is in the processor, so the control over the sim will be purchased by processor making companies. This helps to manage easy for the users, like to change operators or changing plans will be easier.
  • Durability: Durability of sim increased, as the users will not be able to touch it.
  • Theft: The problem of stealing sims will be decreased and tracing will be easier, as the sim is in the device.
  • Cost: The cost of making it is lesser than previous Sims because it needs fewer components to build it.
  • Upgrade in technology: iSim helps to explore the use of IOTs devices. This sim is designed for IOTs devices. Control of all the IOTs device will be easier by using iSIM.

Post a Comment

0 Comments