TL;DR: Best eSIMs for London in Summer 2025
Planning to work remotely, explore cafés, or attend events in London this summer? An eSIM is the easiest way to stay connected without relying on slow public Wi-Fi or hunting for a SIM card kiosk.
What you should know:
✅ Download and activate your eSIM in minutes
✅ No paperwork, ID, or queueing needed
✅ Great coverage across all of London
✅ Plans from under $10/week
✅ Easy top-ups through each provider’s app
We tested several providers and found that Ubigi, Saily, and eSIM4Travel are the best picks for remote workers, backpackers, and digital nomads visiting London in 2025.
Why use an eSIM in London?
London in summer is buzzing with energy from coworking at WeWork or Second Home to hanging out in Shoreditch or networking at tech events. Having fast, flexible data makes it all easier. eSIMs let you stay online for maps, ride shares, video calls, or Spotify streaming as you walk through the city.
You don’t need to search for a phone shop or fiddle with plastic SIM cards. Just install the eSIM profile from your provider and activate it when you land.
What is an eSIM and how does it work?
An eSIM is a digital SIM card that you can install directly onto your phone. It works just like a regular SIM, but there’s no hardware to swap.
Why we love using eSIMs in London:
✅ Instant activation without the need to visit a shop
✅ No roaming charges or hidden fees
✅ Ideal for short stays and remote work
✅ Apps make it easy to top up and manage data
Best eSIM providers for London
1. Ubigi: Best for fast setup and performance
Ubigi stands out for its easy installation and excellent speeds throughout London. Whether you're working from a café in Notting Hill or taking video calls in your hotel, you’ll get solid service.
Why choose Ubigi:
- Setup in under 5 minutes via app or QR code
- Plans activate when you land in the UK
- Excellent speeds tested in both central and suburban zones
- Real-time usage tracking
- Plans from 500MB to unlimited
- Compatible with tethering and hotspot use
- 10% off with NOMADWISE
2. Saily: Best for privacy & secure browsing
If you’re working with sensitive data from coffee shops or coworking spaces and want to avoid public Wi-Fi, Saily is a great option. It comes with built-in tools to protect your connection.
Why choose Saily:
- Built-in ad blocker and anti-tracker tools
- Web protection to block suspicious sites
- Reliable connection across London
- Friendly, responsive support team
- Simple app experience with smart top-ups
👉 Try Saily here: use NOMADWISE5 for 5% off
3. eSIM4Travel: Best for basic needs on a budget
If you’re looking for the most affordable way to stay online while visiting London, eSIM4Travel is a good no-frills option. It provides solid speed across London and will be a reliable partner for Google Maps, WhatsApp, and everyday browsing.
Why it works:
- One of the cheapest options available
- No app needed, activate by QR or browser
- Good basic coverage around central London
- Live chat support if you get stuck
👉 Check out eSIM4Travel
Looking for more options?
Want to compare more providers or check eSIM options for other countries? Check our full directory:
👉 See all UK eSIM providers here
How to Choose the Right eSIM for Your London Trip
- Phone Compatibility: Most iPhones from XR and up + Pixel 4 and newer support eSIM
- Data Needs: 3–5GB/week is enough for most city explorers
- Multi-country travel: Choose Ubigi or Saily for regional coverage
- Need help: Look for providers with live support chat
Quick Setup Guide: eSIMs in London
- Purchase a plan either through an app or online
- Go to Mobile Network settings on your phone > Add eSIM
- Follow the installation steps
- Activate once you arrive in the UK
FAQ: eSIMs for London
Can I use an eSIM across the UK?
Yes! All providers listed above offer strong coverage across the capital.
How much does an eSIM cost?
Plans typically range from £5–£20.
- Use code NOMADWISE for 10% off your first Ubigi plan
- Use code NOMADWISE5 for 5% off your first Saily plan
Can I make calls and texts?
These eSIMs are data-only. Use messaging apps like WhatsApp, Signal, or FaceTime.
Can I keep multiple eSIMs?
Yes, most phones allow you to store several profiles and switch between them as needed.
Best eSIMs for the UK
Whether you’re working from a rooftop in Shoreditch, or navigating markets in Camden, having mobile data just makes your London trip smoother.
- Want the best speeds and flexible plans? Go with Ubigi (use code NOMADWISE for 10% off)
- Travelling on a budget? → Choose eSIM4Travel will get you online affordably
- Want a bit more online safety while working? → Try Saily (5% off with code NOMADWISE5)
👉 Browse all UK eSIM providers here
No more waiting in line at SIM stands. Just land, connect, and explore London your way.
