All you need to know about eSIMs


13 Sep 2018

Apple's new iPhones will have eSIMs: Well, what are eSIMs?

eSIMs have been around for a while but hadn't received much attention till yesterday.

Then, Apple announced that its new iPhones would support dual-SIM capabilities by virtue of a combination of a nano SIM and an eSIM.

While we're all familiar with nano SIMs, the eSIM is a relatively new word in our vocabulary.

So, what exactly is an eSIM?

We explain.

The extremely short history of the eSIM

The first device to sport an eSIM was the Samsung Gear S2 3G in 2016. However, the technology was brought into the spotlight by the Apple Watch Series 3, and has since made its way into cellular-enabled iPads, and the Google Pixel 2.


The basics of what constitutes an eSIM

The introduction of eSIMs on the new iPhones marks the first-ever dual SIM support on iPhones.

Unlike physical SIMs, an eSIM is a tiny, reprogrammable, un-removable SIM card - measuring just 6mm by 5mm - that is soldered into the new iPhones' motherboards.

The idea behind the eSIM is that it'll allow users to switch between carriers without having to swap SIM cards.

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Advantages offered by eSIMs

eSIMs offer several advantages over traditional, physical SIM cards.

Owing to their tiny size, eSIMs are perfect for enabling cellular connectivity in ultra-compact devices like smartwatches.

Additionally, with eSIMs having the ability to be remotely activated by telecom service providers, users will theoretically be able to change carriers just by changing their device's cellular connectivity settings.

Goodbye, physical SIMs.

Is eSIM support available in India?

In India, Airtel and Reliance Jio are the only telecom operators that offer eSIM support so far. Both have launched special cellular services to support the new network, and Apple will partner with the duo for eSIM support on iPhones in India.

Tech shift

Let's all admit it, a shift to eSIMs is unavoidable

Let's all admit it, a shift to eSIMs is unavoidable

Regardless of whether the new iPhones bring eSIMs into the mainstream, let's admit that an eventual switch to eSIMs is unavoidable.

While such a shift from traditional SIMs to eSIMs might be great news for customers, telecom service providers could be facing a difficult reality indeed.

With eSIMs making carrier switching extremely simple, network providers might have difficulties holding on to customers.

Price wars

Service providers could be looking at a new price war

When switching carriers becomes as simple as changing settings, consumers are bound to jump from one operator to another to seek the best deals.

Thus, the mainstream adoption of eSIMs is bound to accelerate price competition among telecom service providers.

With service providers increasingly trying to consolidate their market shares, they will not be happy about the prospect of a new wave of price wars.

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Apple Mobile Phones


Telecom Sector

Apple Watch Series 3


Google Pixel

Google Pixel 2




Reliance Jio

Samsung Gear S2 3G

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Most asked questions

Will eSIM have the same number or different number each time we change the operator?

More questions

Will eSIM have the same number or different number each time we change the operator?

Asked 2018-09-13 14:43:20 by Shivamgiri Goswami

Answered by NewsBytes

The number of your eSim will remain the same, only the operator will change if you will change your city or state. eSim now allows customers to store multiple operator profiles on a device simultaneously.

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