Smart Connectivity for British Travelers

The Smart Way for British Travelers to Stay Connected Abroad

Avoid expensive roaming charges from EE, O2, or Vodafone UK outside the EU. Get instant 5G/4G internet anywhere with Cellesim eSIM.

💳 Pay securely with UK cards or Apple Pay. Your UK SIM stays active for WhatsApp and Bank OTP verification (Barclays, HSBC, Monzo).

🛡️ No roaming bill shock
📲 Keep your UK (+44) number
Instant Activation
🌍 200+ Destinations

Why British Travelers Switch to eSIM Before Boarding

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Roaming passes for non-EU destinations (like USA or Turkey) can cost up to £6 every day

£

Local UK carriers often have hidden speed caps or small fair usage limits while abroad

Don't waste holiday time in airport queues hunting for physical local SIM cards and showing your passport

🎒

Pocket Wi-Fi is an extra device to charge. Cellesim is 100% digital on your existing phone

➡️ Savvy UK travelers now choose Cellesim instead.

Popular Plans for British Travelers

Choose your destination and get connected instantly.

Most Popular
🇪🇸

Spain

Perfect for Costa del Sol & Islands

From £3.50
View Plans
Holiday Fav
🇹🇷

Turkey

Reliable city & coast data

From £3.20
View Plans
🇺🇸

USA

Full 50 States coverage

From £5.20
View Plans
Budget Friendly
🇹🇭

Thailand

Island hopping high speed

From £3.50
View Plans
🇫🇷

France

High speed across Paris

From £3.50
View Plans
🇮🇹

Italy

Reliable city breaks

From £3.50
View Plans
🇬🇷

Greece

Island hopping high speed

From £3.20
View Plans
🇪🇺

Europe (Regional)

One plan for 42 countries

From £3.50
View Plans

Cellesim vs. UK Carriers

Why pay for expensive EE or O2 roaming packs?

Features Cellesim eSIM EE / O2 / Vodafone / Three
Cost (Non-EU Trip) ~£8 Total
Pay only for what you use
£2 - £6 / Day
Expensive daily passes
UK Number Stays Active ✓ Stays Active
Receive Bank OTP SMS for Free
Restricted
Risk of accidental daily charge trigger
Monzo / Revolut / Barclays ✓ Optimized
Full 2FA SMS support
Potential Delay
Delayed SMS on foreign networks
Data Control 100% Prepaid
Zero hidden bill shock
Auto-Renewal Bills
Daily charges continue automatically
➡️ UK travelers save over 80% vs standard international roaming packs.

Fair Comparison

Why Cellesim is the best choice for your journey

Comparison Cellesim Airalo Holafly
Hotspot Support ✓ Supported
Share with family
Supported ✕ Restricted
Often No Hotspot allowed
Local Value (£) Best Local Rates
Optimized for UK Market
Global Standard Expensive Daily Caps
Customer Support ✓ Global Expert
Travel Specialized
Tickets Chat

How It Works

1

Choose Destination

Select the package that fits your itinerary from 200+ global options.

2

Install Before Departure

Scan the QR code and set up your profile using your home Wi-Fi in the UK.

3

Land & Connect

Land, switch data line to Cellesim, and you’re online instantly. No SIM swapping.

💡 Pro Tip: Install your eSIM 1–2 days before departure using your home or office Wi-Fi in the UK. Don’t wait until you land!

Is Cellesim Right for You?

Perfect if you:

  • Traveling outside the UK (Europe, Japan, Mexico, etc.)
  • Use apps like Monzo, Barclays, HSBC & WhatsApp
  • Want to avoid £6/day roaming bill surprises abroad

Not ideal if you:

  • Your phone does not support eSIM technology
  • Rely only on hotel Wi-Fi 24/7

Not sure if your phone supports eSIM?

Check compatibility here

Trusted by 50,000+ International Travelers

"Worked perfectly in Antalya. I could receive Barclays verification codes for my payments while having high-speed data. Way cheaper than EE!"

Oliver R. — Summer Trip to Turkey

"Way cheaper than O2's roaming packs for Thailand. Used it for 15 days in Phuket, coverage was excellent. Saved over £80."

Sophie S. — Vacation in Thailand

"Setup was so easy. Bought it in London, installed it at home, and was online the moment I landed in New York. Perfect for bank access."

James M. — Travel to USA
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Our Commitment

"We built Cellesim because roaming ruined our own trips. We wanted something simple and fair. That's why our eSIM experience is designed for travelers, with zero hidden surprises."
— Cellesim Founders
Travelers helping travelers

Frequently Asked Questions

For British Travelers Abroad

Will my UK phone number stay active for WhatsApp/Banking?
Yes. Cellesim acts as a secondary data line. Your primary UK SIM (EE, O2, Vodafone, Three) stays active for calls and SMS. Your WhatsApp and banking apps (Monzo, Revolut) remain tied to your original +44 number automatically.
Can I still receive Bank OTP SMS?
Yes! As long as you keep your physical UK SIM enabled in your cellular settings, you can receive incoming SMS verification codes for Barclays, HSBC, or Lloyds while using Cellesim for data.
Is it cheaper than EE or O2 roaming packs?
Absolutely. UK operators often charge high daily fees (£2 - £6/day). Cellesim provides local rates, often saving you up to 90% on total data costs compared to standard international roaming passes.
Can I share my internet (Hotspot) with others?
Yes! Unlike some competitors like Holafly, Cellesim eSIMs support data tethering/hotspots, making it perfect for sharing data with family or using your laptop during your trip.

Travel Smarter. Stay Connected anywhere.

For British travelers, an international eSIM is no longer optional — it’s the smartest way to save money and stay connected.

eSIM Ταξιδιού Ηνωμένου Βασιλείου | Cellesim