Cheapest Way to Use Your Phone Abroad from the UK in 2026
Stop overpaying for data abroad. We compare every option – eSIMs, roaming, pocket WiFi, and local SIMs – to find the cheapest way to stay connected.
Published 2026-03-05 · Updated 2026-03-08 · TripSIM Team
Using your phone abroad from the UK can be shockingly expensive if you're not prepared. UK carriers like EE, Vodafone, Three, and O2 charge £2–6 per day for roaming in Europe, and significantly more outside Europe. But there are much cheaper alternatives. In this guide, we compare every option to help you find the most affordable way to stay connected on your next trip.
Option 1: Travel eSIM (Best Value)
A travel eSIM is the cheapest and most convenient option for most travellers. An eSIM is a digital SIM card that you download to your phone before your trip. There's no physical card to swap, no store to visit, and no contract to sign.
- TripSIM Europe plan: from £0.16 for 1GB / 7 days
- Covers 34 European countries in one plan
- Works in 190+ countries worldwide
- No app required – delivered via email QR code
- Tethering supported for laptops and tablets
- Install before you leave – works on arrival
Option 2: UK Carrier Roaming
Most UK carriers now charge daily fees for using your phone in Europe. Outside Europe, charges can be even higher. Here's what the main carriers charge:
- EE: £2.47/day in Europe, up to £6/day elsewhere
- Vodafone: £2/day in Europe with Xtra plan
- Three: Go Roam included on some plans, otherwise £2/day
- O2: £2/day Europe Roaming Bolt-on
For a 7-day trip to Spain, you'd pay £14–42 with carrier roaming vs just £4.50 with a TripSIM eSIM. That's a saving of up to 90%.
Option 3: Local SIM Card
Buying a local SIM card at your destination can be cheap, but it's inconvenient. You'll need to find a shop, possibly show ID, and you'll get a different phone number. If you're visiting multiple countries, you'd need a new SIM for each one.
Option 4: Pocket WiFi
Portable WiFi devices provide a mobile hotspot but cost £5–15 per day to rent, plus you need to carry, charge, and return the device. For most travellers, an eSIM is simpler and cheaper.
Cost Comparison Summary
For a 7-day European holiday using 1GB of data: TripSIM eSIM costs £4.50, UK carrier roaming costs £14–42, a local SIM costs £5–15 (plus hassle), and pocket WiFi costs £35–105. The eSIM wins on both price and convenience.
Our Recommendation
For the vast majority of UK travellers, a travel eSIM from TripSIM offers the best combination of price, convenience, and coverage. You can install it before your trip, it works across multiple countries, and prices start from just £0.16.
What is the cheapest way to use my phone abroad?
A travel eSIM is the cheapest option for most travellers. TripSIM offers Europe plans from £0.16, compared to £14-42 for carrier roaming over a week.
Can I avoid roaming charges completely?
Yes. By using a travel eSIM for data and keeping your UK SIM for calls/texts, you avoid all data roaming charges.
Is it worth buying a local SIM abroad?
Local SIMs can be cheap but are inconvenient – you need to find a shop, show ID, and get a new number. An eSIM is easier and often just as affordable.