Setting up an eSIM could save you money on unexpected roaming charges when travelling abroadYesim is a Swiss provider with seven years in the eSIM market (Image: Yesim)Paying for daily roaming can be an expensive game. The habit of switching mobile data on after landing can cost families hundreds of pounds in needless fees. You turn off aeroplane mode when arriving at your destination, and an SMS lands from your carrier: incoming calls at eye‑watering per‑minute rates, pricey per‑megabyte data, and a hard sell for a roaming pass with fuzzy terms and buried limits. The sting often arrives only when the bill lands. But there's an easy solution because a new generation of eSIM providers is fixing this. Yesim, let's travellers decouple connectivity from expensive UK contracts and buy global data with clear, upfront pricing. Don't let confusing roaming rules leave you out of pocket
An eSIM is a tiny chip already built into your phone that lets you install a mobile plan remotely
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Yesim)
Do the maths. A family of four heads to Turkey or Florida for two weeks with no plan in place. Out of habit, they switch on data at the airport, and their provider automatically triggers a daily roaming pass. By the end, connectivity could hit as much as £413.84 - about £7.39 per person per day. In Florida, that £400 could go towards Disney World or a proper sit‑down meal for everyone. For many working families, that’s the difference between a treat and tightening belts. Unexpected roaming can strike even inside the EU. On Corfu, many Britons receive a “Welcome to Albania” text because the island is around three kilometres from the Albanian coast, and their phones latch onto the stronger signal across the water. One trip can rack up as much as £300 in surprise charges. The same “inadvertent roaming” bites on Kos, Chios, Lesbos, and Samos, where devices can hop onto Turkcell without warning. You don’t see it happening - you just get the bill. Why the old tricks no longer work Buying a local SIM means hunting for a shop in an unfamiliar city, queuing, handing over your passport, and often paying airport mark‑ups. Pull out your UK SIM, and you may lose access to bank SMS codes, turning basic banking into a faff. Relying on public Wi‑Fi ties you to one spot and leaves you stranded when you need maps or a taxi on the move. Open networks are poorly protected, meaning doing banking or sharing personal info on them is a risk no one needs on holiday. Why eSIMS are the way forward
