The shift toward eSIM technology has changed how mobile services get activated. Apple dropped the SIM tray from US iPhone models starting with the iPhone 14, and other manufacturers are following the same path.
Lyca Mobile was one of the first MVNOs to support eSIM across their plan range, leading an industry-wide migration to digital activation.
How eSIM Actually Works
An eSIM is a chip soldered directly into your phone during manufacturing. Unlike removable SIM cards, eSIMs store carrier data digitally and can be reprogrammed remotely. Your carrier sends you a QR code, you scan it with your phone’s camera, and the device downloads your service profile within seconds.
The practical outcome: activation that previously required waiting for mail delivery now happens in minutes. Switching carriers no longer involves ejector tools or keeping track of plastic cards.
Most current flagship phones support eSIM. iPhone XS and newer models include it, as do recent Samsung Galaxy devices, Google Pixels from the Pixel 2 onward, and various other Android manufacturers. Some phones support both eSIM and physical SIM simultaneously, while newer models have moved to eSIM-only designs.
The Interoperability Breakthrough
Early eSIM adoption hit a significant obstacle. Moving your eSIM profile between devices, particularly between different operating systems, required calling your carrier and going through manual reactivation. Someone switching from an iPhone to Samsung couldn’t simply transfer their service digitally.
This friction persisted because manufacturers implemented eSIM differently. Apple built its system one way, Google another, Samsung yet another. Each worked within its own ecosystem, but crossing those boundaries meant starting activation from scratch.
The GSMA, which sets global mobile standards, recently introduced a standardized eSIM transfer protocol that addresses this issue. It enables secure, direct transfers of eSIM profiles between devices, regardless of operating system.
For Lyca Mobile customers, this means switching phones no longer requires contacting support or requesting new activation codes. Kadams Radhakrishnan, Chief Technical Director at Lyca Mobile, describes this standardization as delivering “true interoperability, a consistent, user-centric experience that eliminates bespoke carrier solutions and platform-specific workarounds.”
As Apple introduces eSIM-only devices and other manufacturers follow, this standardization becomes increasingly critical for consumers who want freedom of choice.
Practical Benefits
Setup speed tops the list—scanning a QR code and waiting 30 seconds beats driving to a store or waiting days for mail delivery. This matters most when traveling or needing service activated immediately.
Dual SIM functionality becomes genuinely useful with eSIM. Modern eSIM-capable phones let you maintain your primary number on physical SIM while adding temporary eSIM plans for travel or work. Lyca Mobile customers traveling within the EU can add a local data plan via eSIM while keeping their UK number active.
Security improvements exist as well. Physical SIM cards can be removed from stolen phones and used elsewhere, while eSIM profiles require device authentication to transfer. By eliminating billions of plastic SIM cards and their packaging, eSIMs also reduce waste.
Device Compatibility
Apple adopted eSIM relatively early. iPhone XS, XR, and all subsequent models support eSIM, with iPhone 14 and newer US models eliminating physical SIM entirely.
Samsung’s eSIM availability varies by model and region. The Galaxy S20 series introduced support, continuing through current S25 models and Z Fold/Flip lines. Google Pixel phones have supported eSIM since the Pixel 2, with current Pixel 9 and 10 series including full global support.
Lyca Mobile’s website includes a compatibility checker that queries your device’s IMEI number and confirms support before purchase.
Setting Up eSIM Service
Activating eSIM service with Lyca Mobile takes about five minutes. You purchase a plan through their website or app, receive a QR code via email, and scan it using your phone’s camera through the settings menu.
iPhone users navigate to Settings > Cellular > Add Cellular Plan and scan the QR code. Android varies by manufacturer but generally follows Settings > Network & Internet > Mobile Network > Add Carrier.
Your device needs internet connectivity during activation, either through WiFi or an existing cellular connection. After scanning, the phone downloads your service profile and activates within 30 seconds to a few minutes.
Common Setup Issues
Poor internet connectivity during the download process causes the most common activation failures. Using stable WiFi prevents this.
Device locks complicate matters. Phones purchased through carrier financing agreements often include software locks preventing activation with alternative carriers until the device is paid off. Factory unlocked phones avoid this entirely.
Industry Adoption
Global eSIM adoption is accelerating rapidly. The GSMA projects 1.2 billion eSIM-enabled devices by the end of 2025, up from around 850 million in 2021.
Most people don’t care about eSIM technology itself—they care about convenient, reliable mobile service. eSIM delivers that more efficiently than physical cards. Lyca Mobile’s inclusion of eSIM support reflects this reality—it’s becoming standard rather than a differentiating feature.
The standardization of eSIM transfer protocols matters for industry health. When every manufacturer implements their own version of a technology, fragmentation frustrates consumers and increases support costs for carriers.
Making the Switch
Deciding whether to activate Lyca Mobile service via eSIM versus physical SIM depends mainly on urgency and device compatibility. If your phone supports eSIM and you want service activated immediately, digital activation makes sense.
Many phones support both eSIM and physical SIM simultaneously, allowing you to activate Lyca Mobile on eSIM while maintaining your current carrier temporarily. This lets you verify coverage and service quality before porting your primary number.
The porting process works identically whether you use eSIM or physical SIM. You provide your current phone number and account information, Lyca Mobile submits the port request, and the transfer completes within a few hours to a couple days.
The Bottom Line
eSIM technology represents genuine progress in how mobile service works. Activation becomes faster, device flexibility improves through interoperability standards, and the user experience aligns better with other digital services.
Lyca Mobile’s adoption of eSIM support removes barriers to switching. Someone considering their mobile options can activate service immediately rather than waiting for mail delivery. That convenience encourages comparison shopping and makes it easier to try alternative carriers without commitment.
The technology succeeds by being invisible. Good eSIM implementation feels like nothing happened—you scanned a code, waited briefly, and your phone works.
