For years, we’ve been told physical SIM cards are on the way out and that eSIMs will deliver major advantages, such as seamless global roaming and instant connectivity. The promise is compelling: no more swapping tiny plastic cards, no more hunting for local kiosks when you land in a new country, and far fewer unexpected roaming charges on your bill.
GSMA Intelligence forecasts up to 6.7 billion eSIM-compatible smartphones by 2030, and manufacturers and carriers are increasingly aligned behind the technology. Yet adoption lags—why aren’t eSIMs already mainstream?
Hamish White, CEO of telecom software company Mobilise, argues that the gap between the promise and everyday reality comes down to human friction. Despite clear technical benefits, many users face usability issues, inconsistent regulation, and poor carrier implementation that make eSIMs feel more trouble than they’re worth.
The key benefits of eSIMs
eSIMs simplify international travel. Instead of searching for a local SIM card vendor, you can scan a QR code or activate a profile through an app and be online within minutes. That convenience should eliminate surprise roaming fees and make short trips far less stressful.
Beyond travel, eSIMs enable quicker switching between providers. Consumers could move to a better plan and have the new service active almost instantly—no waiting for a physical SIM to arrive or visiting a store. That flexibility empowers users to choose the best value and services.
Removing physical SIM trays also gives phone designers more freedom. Devices can be made thinner or reconfigure internal space to improve battery life and thermal performance. And from an environmental perspective, widespread eSIM adoption could dramatically reduce the billions of small plastic SIM cards produced and discarded each year.
Reality check about global eSIM adoption
Even with more than 400 mobile networks supporting eSIMs and companies like Apple moving toward eSIM-only phones in some regions, mainstream adoption is uneven. Part of the problem is that many carriers have not fully embraced digital-first processes. Instead of rethinking customer journeys for eSIMs, some have attempted to graft eSIM functionality onto legacy systems built around physical cards.
The result for consumers is confusing instructions, failed activations and support teams that often lack the training to resolve eSIM issues. Surveys show a significant portion of users feel they cannot activate an eSIM on their own; faced with uncertainty, most people default to the familiar option.
Regulatory fragmentation also undermines the global convenience eSIMs promise. Countries vary in how they regulate eSIM issuance and use—some impose strict security rules or outright bans. Recent decisions like Turkey’s temporary restrictions and complex policies in markets such as China and India create a patchwork that complicates seamless international use. When rules differ across borders, the “one-profile-everywhere” vision weakens.
So, how do we fix slow eSIM uptake to improve mobile connectivity?
Addressing low adoption requires industry-wide shifts in design, policy and customer experience. White says the first step is changing mindset: carriers must prioritize simplicity and user experience, making eSIM activation as easy as downloading an app.
End-to-end digital onboarding should be seamless—from selecting a plan and activating the profile to billing and support. Users shouldn’t need technical knowledge or multiple support calls; the process must be intuitive and reliable, designed for everyday customers rather than engineers.
Second, stakeholders must collaborate on consistent global standards. Regulators, device manufacturers and network providers should work toward common rules so eSIMs behave predictably across borders. A shared framework would restore the global roaming and instant-activation benefits eSIMs were meant to deliver.
The technology itself is ready for wider rollout. The remaining challenges are mainly organizational and regulatory: improving carrier systems, simplifying activation flows, training support staff, and harmonizing international rules. If the industry focuses on user experience and cooperation, the transition from physical SIMs to eSIMs can finally deliver its promised convenience, cost savings and environmental benefits.
See also: Telenor IoT adopts next-gen SGP.32 eSIM standard
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