trust pilot stars

Roam free on 500+ essential apps worldwide

Just £45 /month /year with no hidden costs

Stay connected on WhatsApp, Maps, email and hundreds more in 180+ countries. Data-only eSIM that works alongside your main SIM.

Smart SIM Travel eSIM

AS SEEN ON

BBC Dragons' Den
Condé Nast Traveller
Forbes
TechRadar
Trustpilot Rated Excellent | 60k+ happy customers
5 stars

"As someone who's been away 8 times this year, this SIM is amazing. Recommend to everyone."

Home K

5 stars

"Worked brilliant in Kenya and Tanzania. Used WhatsApp, maps and airline apps without having to worry about roaming charges."

Matt

5 stars

"The peace of mind it provides is invaluable when traveling alone."

Thomas F

How it works

Free roaming in 180+ countries

On 500+ essential apps

Unlimited data

On 500+ essential apps

Includes WhatsApp calling

With your regular number

Set up in minutes

Use alongside your main SIM right away

5G

In specific countries

Data only

Use your main SIM for regular calls and texts

Unbeatable back-up signal in the UK

500+ apps on EE, O2, Three and Vodafone

eSIM: the 21st century SIM card

An eSIM is the digital version of a SIM card. No waiting for the post or fiddly plastic, just order and set up in seconds. You can even have more than one at once.

Most new devices support eSIMs – check yours below.

Smart SIM on phone

No more fiddly travel eSIMs and expensive roaming fees

FeatureshonestairaloHolaflyNomad eSIM
One eSIM for 180+ countries
Live chat support
Money-back guarantee
Trustpilot4.6/54.0/54.6/54.4/5
Available countries180+137121123
Easy setup
Works alongside your main SIM
Back-up UK signal
B Corp
Carbon negative
Get SIM

All your most important apps

Complete with unlimited data

Search apps
Messaging
iMessage
WhatsApp
Signal
+more
Navigation
Apple Maps
Google Maps
Waze
Citymapper
+more
Finance
Revolut
Monzo
Starling
Wise
+more
Travel
Uber
Lyft
Airbnb
Bolt
+more
Search
Google
ChatGPT
+more
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Join over 74,000 happy customers

See for yourself why thousands are joining Honest

Customer video review

I was sceptical but...

Just had a 2 week vacation in the Caribbean and everything was perfect. No crazy bills!

|Rich Brickwork

Smart SIM will definitely save me money when travelling abroad

Using Google Maps, Revolut, Citymapper, Monzo, and especially WhatsApp. Great idea!

|Mark P

How is Smart SIM so affordable?
Unlike other travel eSIMs, Smart SIM is just for your essential apps (including WhatsApp, Maps, ChatGPT, and hundreds more). So you have peace of mind about staying connected, without the sky-high costs.

Use your main SIM for

  • Social Media
  • Streaming
  • Open web browsing
  • Video calls
  • Regular calls and texts (WhatsApp calls available on Smart SIM)

Easy as 1, 2, 3

1

Sign up for Smart SIM

Get Smart SIM
2

Download Smart SIM

Scan the QR code emailed to you or set up manually.

3

Switch in just a few taps

Whenever you travel overseas or lose coverage

Pricing

Best value

Annual

£45 /year

Billed annually (works out as £3.75/month)

Monthly

£10 /month

Cancel anytime

Got a question?
We've got the answer

Team member

Straight from our team of (extremely friendly) experts

Smart SIM is the ultimate back-up eSIM. It's a data-only eSIM that works alongside your main SIM to give you:

📶 Unbeatable UK signal – 500+ apps on EE, O2, Three and Vodafone

🌎 Free global roaming – 500+ apps with unlimited data in 180+ countries

So whether you’re deep in the countryside, mid-commute, or holidaying in Cameroon, Smart SIM keeps you connected when it matters most.

Set up once then switch in a few taps whenever you lose signal or go abroad. No more rubbish signal, relying on wifi or expensive roaming fees 👋

Easy. Switch to Smart SIM in just a few taps or wait for it to kick in when your main SIM completely loses signal.

Good question. We’ve always done things differently at Honest in our mission to build the best mobile network on the planet.

After introducing Classic SIM to thousands of happy customers, we knew people everywhere still faced two big problems: rubbish signal and expensive roaming. So we built Smart SIM.

All the most essential ones: WhatsApp, Google Maps, Uber, Citymapper, Monzo… the list goes on. Check out the 500+ apps on Smart SIM here.

Smart SIM is £10/month on our rolling monthly plan, or £45 for the year if you choose our annual plan (that’s just £3.75/month 😮).

We wouldn’t recommend it. You'll need your main SIM for calls and texts, social media and streaming, and open web browsing.

Smart SIM works alongside your main SIM, ready for you to switch to whenever you lose signal or go abroad. Think of it as your trusty back-up, there when you need it most.

It sure is. Consider it the all-you-can-eat buffet for apps including WhatsApp, Google Maps, Uber, Monzo and many more 📱

You can WhatsApp call and message, but if you're going old school, you'll need your main SIM for texts and calls.

Smart SIM is eSIM only, so you can add it to your phone and start using alongside your main SIM right away.

Just check your phone is eSIM compatible before ordering.

We thought you’d never ask 🤩 Click here to get your Smart SIM – you’ll be up and running quicker than you can say ‘unbeatable signal and free global roaming’.

Smart SIM is the ultimate back-up eSIM. It works alongside your main SIM (on any network) to give you 500+ apps on EE, O2, Three and Vodafone, plus free global roaming in 180+ countries around the world. So you never have to worry about rubbish signal or expensive roaming again.

Classic SIM, on the other hand, is your essential everyday UK SIM for texts, calls and data. It piggybacks on VodafoneThree to give you seriously speedy 5G. For the ultimate peace of mind when it comes to your signal, we recommend using both.

Not yet. Smart SIM doesn’t support VPNs right now, but we’re working hard on new features. Watch this space 👀

To keep Smart SIM affordable, we’ve limited it to apps that don’t gobble up endless data. That means social media and streaming are off the cards (for now, at least). On the flip side, you have more than 500 apps (and counting) at your fingertips, whether you’re on the train, on your travels or out on the town. Plus, it’ll give you a break from all that doomscrolling 😉