eSIM in 2019: a year in review

A look back at this year’s milestones for the embedded SIM (eSIM), remote SIM provisioning (RSP) and a look ahead at what’s in store for 2020.

By Emir Aboulhosn, VP Connectivity Domain, Digital Business Unit at IDEMIA

2019 was a key year for eSIM growth and mainstream support. As the year comes to an end, let’s recap some of the year’s biggest eSIM milestones, devices and developments:

  • After being introduced to mainstream consumers through the iPhone XS, XS Max and XR in addition to the Google Pixel 3 and 3 XL models launched in late 2018, eSIM and its benefits became widely known throughout North America, Europe and Asia. The dual-SIM functionality and use cases – roaming and second line usage – were promoted to consumers as one of several benefits of their newly eSIM enabled smartphones.
  • Connected smartwatches like the Apple Watch with LTE continued to dominate the wearables category with some new devices further fueling this category and pushing mobile operators to support their unique features and requirements.
  • The GSMA continues its work on the Remote SIM Provisioning (RSP) specifications for both Consumer and M2M, with new specifications expected in early 2020.

Mobile operator support for eSIM

2019 was a key year for eSIM growth and mainstream supportAs of December 2019, there were well over 200 mobile network operators worldwide that supported eSIM.
Regionally, operators in North America, Europe and Asia Pacific are the ones with the most support for eSIM, and accordingly have the highest forecast for eSIM device shipments worldwide.
At Mobile World Congress 2019, the GSMA published the eSIM in China Report, stating that mobile operators in China were laying the groundwork for the commercial launch of eSIM, and that by 2025 China would become the world’s largest market for global eSIM smartphone connections with between 20-35% of all smartphones being connected via eSIM. China had over 1 billion smartphone connections at the end of 2018.
In September 2019, the Russian Communications and Press Ministry met with operators and regulators to change the country’s regulatory framework in favor of eSIM support. This includes the use of the national banking biometric database to verify and authenticate the digital identity of subscribers remotely on-boarding with eSIM devices. It is expected that regulators will approve eSIM by early 2020.


2019 was a big year for eSIM smartphone releases, not just in terms of what was announced but also in what was not announced.

All of the eSIM smartphones released in 2018 continued with the technology in 2019:

  • Apple’s iPhone 11, 11 Pro and 11 Pro Max all include an eSIM in addition to the physical SIM tray.
  • Google’s Pixel 4 and 4XL too both include eSIM support, as well as the Pixel 3a launched midway through the year.

Samsung notably did not include eSIM support in its flagship lineup with the Galaxy S10 or Note 10 and Note 10+. However, the much-hyped Samsung Galaxy Fold did include eSIM support. This hints to the possibility of eSIM being included in next year’s Samsung phone launches – the Galaxy S11, Note 11, and Flip to name a few.

Possibly the most significant eSIM smartphone launch this year is the November announcement of the Motorola RAZR v4. Not only is this iconic phone being reissued with a folding screen, but it is the first eSIM only smartphone in the world. A milestone in the transition from physical SIM and hybrid devices to a pure eSIM-only ecosystem.

Emir Aboulhosn, VP Connectivity Domain, Digital Business Unit at IDEMIA

With new categories of devices being connected like smartwatches, smartglasses, and others, a consistent and controlled user experience across all devices is more important than ever.
Emir Aboulhosn, VP Connectivity Domain, Digital Business Unit at IDEMIA


Market research estimates that there would be 24.5 million eSIM wearables shipped in 2020. By 2023 this figure is projected to more than double to over 58.6 million eSIM wearables shipped. In 2019, the eSIM wearables market continued to be dominated exclusively by smartwatches, including the market-leading Apple Watch and Samsung Galaxy Watch:

  • Samsung launched two eSIM wearables in 2019 with the Galaxy Watch Active in Q1 and the Galaxy Watch Active2 in Q3. These devices complement the previously released flagship Galaxy Watch LTE in 2018.
  • In Q4, as predicted by industry analysts, Apple launched the Apple Watch Series 5 with its eSIM-enabled LTE variant.

Wearables continue to drive the eSIM market forward with innovative features like Multi-SIMWearables continue to drive the eSIM market forward with innovative features like Multi-SIM (also known as One Number), enabling subscribers to use the same phone number on smartwatch and phone. Similarly, operators are required to offer advanced network features like Voice-over-LTE (VoLTE) and Voice-over-WiFi (VoWiFi) to support such devices and the end-user experience as imagined by the OEMs.

To ensure a consistent end-user experience with these cutting-edge features, device makers publish Entitlement specifications for mobile operators to implement. Entitlements are not new – they have been around for some time already and used for features like mobile hotspot and more. With new categories of devices being connected like smartwatches, smartglasses, and others, a consistent and controlled user experience across all devices is more important than ever. A continuous user experience across multiple devices (smartphone, wearable, tablet, PC, etc.) is what builds customer loyalty to both the OEM and the mobile operator. As more eSIM connected devices are introduced, Entitlements will play an increasingly important role for mobile operators.

Learn more about our Smart Connect Entitlement offer

Tablets & PCs

2019 tablets and PCs also delivered notable eSIM-enabled launches including the Apple iPad, iPad Air, and iPad Mini variants, a leather-clad HP Spectre Folio, Lenovo Yoga C360, Acer Swift7, Samsung Galaxy Book, and Microsoft’s Surface Pro X.
Always-connected devices play an increasingly important role in the context of transitioning to cloud computing. Without connectivity, many of today’s essential applications are effectively unusable. Office 365. Salesforce. Slack. The list is endless.
Enterprises worldwide stand to benefit from deploying eSIM-enabled devices to their workforces. In particular workers who are consistently on the go – whether sales teams visiting customers or shipment and logistics workers delivering critical packages. In all cases we see two critical requirements – a need for constant connectivity, and a need for a secure connection. After all, cellular connectivity provided by mobile operators is significantly more secure than public Wi-Fi networks.
To that end, enterprises that use Unified Endpoint Management (UEM) and Mobile Device Management (MDM) platforms are also able to support eSIM devices throughout their organizations thanks to solutions like IDEMIA’s Smart Connect Hub, which bridges the MDM and mobile operator network.

Learn more about our eSIM for the Enterprise offer

Take the case of PriorityOne Bank in the U.S. PriorityOne put Surface Pro LTE devices in the hands of its mortgage lenders, who are typically on the road and visiting customers in their homes. Their need for connectivity and security is well established, and PriorityOne IT can leverage their existing MDM to activate and provision their devices seamlessly – reducing the amount of time it takes to deploy a device by 26 hours.

eSIM saves time because you don’t have to order and activate a physical SIM card. After the employee signs into the device, it’s active — it deploys itself. We are saving an estimated 26 hours of time per device.
Justin Griffith: Technology Officer, PriorityOne Bank

Remote SIM Provisioning specifications

Both the GSMA and the SIMalliance are responsible for publishing specifications that set the standard for eSIM and remote SIM provisioning. While the GSMA RSP specification has not released its Consumer Phase 3 specification yet, the SIMalliance has published a few updates worth noting.
eUICC Profile Package specification 2.3 was released in late October, providing support for 5G networks, which are being deployed around the world already. The update also addresses some interoperability issues between different version of eUICC Profiles used by different mobile operators.
In line with that theme, an updated test specification, version 2.2.2, was published in July. This update addresses a “globally standardized means of testing products which implement Version 2.2, Version 2.1 or Version 2.0 of the eUICC Profile Package.”
With the constant evolution of the RSP specification and eUICC Profile Package specification, eSIM compatibility testing will become increasingly important for mobile operators worldwide. Provisioning eUICC Profiles in batch – similar to how it is done with physical SIM – amplifies this issue, as Profiles are generated and stored in a Subscription Manager database (SM-DP/DP+) waiting to be downloaded. This runs the risk of the Profiles becoming incompatible with newer devices and specifications. One solution is to switch to a real-time, on-demand provisioning model where the Profile is provisioned with the correct specification at the time of activation, using the version appropriate for the device. IDEMIA’s Digital Personalization System (DPS) addresses this problem.

What’s in store for 2020?

In 2020 we will see an increase in eSIM usage for enterprise connectivity worldwideWithout a doubt, devices that have eSIM today will continue to have eSIM next year, including the Apple iPhone 12 and its variants, the Apple Watch Series 6, and the Google Pixel 5 and 5XL.
All eyes will be on the next iteration of the Samsung Galaxy S11 and Note 11/11+ to see if Samsung will support eSIM in its flagship smartphones. With the Galaxy Watch supporting eSIM already, adding the smartphone would give Samsung a similar user experience to Apple, in that both a primary device and a companion device could be both connected independently of one another. In that regard, we will see an increasing need for mobile operators to support OEMs’ Entitlement specifications – ensuring a consistent user experience across all devices and their ability to access advanced network features like Multi-SIM.

As enterprises continue their transition to Windows 10 and OEMs continue to launch eSIM in tablets and PCs, we will see an increase in eSIM usage for enterprise connectivity worldwide.

As the rise in eSIM devices will push mobile operators to support remote customer onboarding, securing these onboarding use cases with identity proofing and verification – including biometric capture and verification – will be key to ensuring trusted customer identities during both enrollment and authentication.

In conclusion, 2020 will continue to see eSIM being adopted by more OEMs and mobile operators alike. Consumer devices – smartphones and wearables primarily – will continue to push eSIM into the mainstream and give mobile operators added incentive to support as many devices and use cases as possible.


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