Travel eSIM cannot be ignored. It is a rapidly-accelerating reality which is transforming how roaming connectivity is bought, sold, and consumed.
It is a structurally different segment of the roaming market that is already reshaping how agreements get negotiated, how traffic is routed, and how operators need to think about their international business, whether they’re ready for it or not.
So what exactly is Travel eSIM? And how does it affect traditional roaming?
A retail product, sold everywhere except where you’d expect
Unlike traditional roaming, Travel eSIM is a retail product and is being sold wherever people happen to need connectivity.
You might have seen Travel eSIM data plans when booking flights, watching inflight movies, booking hotels, renting a car… it has inserted itself into every commercial touchpoint of the travel journey, and the number of providers and aggregators entering this space is rapidly increasing.
This is a fundamentally different distribution model. It bypasses the telco billing relationship entirely and competes on immediacy and price, not loyalty or bundle value.
QR codes changed everything, and nobody planned it that way
Before 2020, eSIM adoption faced a real behavioural friction problem. The concept wasn’t hard, but convincing someone to install a carrier profile by scanning a code felt foreign to most people outside the tech world.
However, during COVID, scanning a QR code to access a menu in a café or restaurant became normalised, and today, scanning a QR code to activate a data plan abroad doesn’t require any explanation. The onboarding for a Travel eSIM is genuinely smoother than buying a physical SIM at an airport kiosk, and consumers have noticed.
This matters because it removed the last practical argument for why Travel eSIM would stay marginal. The adoption curve is no longer being held back by user behaviour- if anything, it’s being accelerated by it.
Travel eSIM as roaming vs Travel eSIM as a local story
Not all Travel eSIMs are built the same way, and the distinction matters. There are two fundamentally different technical models behind what the consumer sees as a single seamless product.
- The first model is Travel eSIM built on roaming. The provider holds inter-operator agreements with host networks in each country, and the subscriber’s traffic flows through those established roaming relationships. This is familiar technology with decades of operational history behind it. The agreements are tested, the fallback mechanisms work, and critically, a roaming-based Travel eSIM can steer traffic across several partner networks in the same country if one underperforms. The user may never notice, but under the hood, the resilience comes from the same infrastructure that traditional roaming has always relied on.
- The second model is the local eSIM. Here the provider installs a profile tied directly to a single local operator in the destination country. The promise is near-local performance at near-local cost, and when it works well, speeds can be genuinely fast because there is no foreign routing in the path. But that is also the limitation. The user is locked to one network, with no fallback. If that operator has a coverage gap, a congestion problem, or an outage, there is nowhere to go. The eSIM simply stops working well, and the user has no lever to pull.
For the operator thinking about this from a wholesale or network perspective, the roaming model generates traffic that is recognisable and manageable within existing frameworks. The local eSIM model is structurally different: it routes around traditional roaming entirely, which is precisely why it puts pressure on roaming revenues and why it is harder to track and forecast. Both are growing, but they represent different commercial relationships and different technical conversations.
This is not M2M traffic
The industry has spent years managing M2M and IoT roaming traffic. It has predictable characteristics: low data volumes, stable usage patterns, long-term contractual relationships, and manageable volatility. The forecasting models built around it work reasonably well because the underlying behaviour is consistent.
Travel eSIM traffic is essentially the opposite on every one of those dimensions. Usage per subscriber is high (maps, streaming, messaging, remote work). No contract exists between the end user and the provider, which means there’s no minimum commitment, loyalty, or switching cost. A user will happily buy a different provider’s plan for their next trip based entirely on which marketplace surfaced the best deal at the right moment.
Then there’s the HPMN volatility problem. Travel eSIM providers actively and continuously shop for better rates. If a provider finds a more competitive agreement with a different host network in the same country, they will shift traffic, sometimes quickly and sometimes without notice. This means that even in a market where you believe you have a stable view of inbound volumes, the origin of that traffic can shift significantly between review cycles.
Price wins. Quality is someone else’s problem
We have all heard the argument, often from operators and sometimes from consultants, that Travel eSIM packages don’t guarantee quality of user experience. And technically, that’s true. The typical Travel eSIM offer is a best-effort data package, sold without SLA commitments, without service guarantees, and without any accountability mechanism if the connection underperforms in a given market.
Here’s the inconvenient reality: the end user doesn’t care. At least not yet, and not enough to pay for it.
The traveller buying a data plan for a week in Southeast Asia is not comparing latency figures or network reliability scores. They are looking at one thing: the most gigabytes for the lowest cost, for exactly the number of days they’ll be away. That’s the purchase decision, full stop. In a market flooded with competing offers, often presented side by side in the same checkout flow, price and data volume are the only levers that move conversion. Quality is a secondary concern, sometimes an afterthought.
This doesn’t mean quality is irrelevant forever. But for now, the market is telling you something clearly, and the smart commercial move is to listen to it rather than argue with it.
Today it’s Retail, tomorrow it might be Enterprise
The Travel eSIM market today is almost entirely a retail play. Individual travellers, consumer apps, price-comparison marketplaces: the whole ecosystem is built around one person making a purchase decision from their phone at 11pm before an early flight.
But that’s unlikely to stay the case indefinitely. As eSIM penetration deepens and the operational model matures, there is a clear and logical next step: enterprise Travel eSIM packages designed for companies whose employees travel frequently and in volume. Think of a consulting firm with dozens of staff rotating through different countries every month, or a multinational managing mobile connectivity for field teams across regions. Right now, corporate travel managers handle roaming through enterprise agreements with their home operators, which tend to be complex, often opaque, and not particularly competitive.
A well-structured Travel eSIM offering for business could change that equation entirely. Group plans with centralised billing, usage dashboards, policy controls, and the ability to spin up or wind down plans as headcount shifts are genuinely attractive propositions for procurement teams. The economics work differently at enterprise scale, the quality conversation becomes relevant again, and the relationships are stickier than anything the retail market currently offers.
Threat or opportunity?
Both. But the framing that matters is simpler: Travel eSIM is inevitable, and the operators who treat it defensively will find themselves consistently reactive. The ones who engage proactively, building the commercial and analytical capability to actually understand this segment, are in a genuinely strong position.
The right approach starts with acknowledgment. Travel eSIM is not a subcategory of your existing roaming business that fits the same tools and cadences. It requires dedicated visibility: who the new players are, where the traffic is actually coming from, how agreements should be segmented to reflect the real volatility in the market, and how to forecast in a way that accounts for the structural instability that defines this segment.
The decisions on how to negotiate, how to structure tariffs, how to forecast accurately, and how to track new entrants all become manageable once you have that foundation. Without it, you’re making important commercial calls based on incomplete information, in a segment that is explicitly designed to be hard to pin down.
