Get Smart SIM

1 SIM
180+ countries

Unlimited global roaming from £3.75/month

Roam free for less

On 200+ essential apps worldwide
Affordable roaming in 180+ countries
One set price, no sneaky fees
Instant connection on every trip
Set up once and connect the moment you land
Never run out of data abroad
No more worrying about data caps
Get Smart SIM
“As someone who’s been away 8 times this year, this SIM is amazing. Recommend to everyone.”
- Home K
From £3.75/month
Free roaming in 180+ countries
Unlimited data
Includes WhatsApp calls
With your main SIM's number
Use EE, O2 and Three
5G
USA, Mexico and beyond
Data only
Use your main SIM for calls and texts

More affordable than travel eSIMs and roaming fees

From £3.75 /month
Price
Data
Multi-network
Smart SIM
£3.75/month
£45, paid annually
Or £5 paid monthly
Unlimited data
Restricted to
150+ essential apps
180+ countries
Anywhere SIM
$112.90/month
USD
Unlimited data
Open internet access
1 country
E.g. South Africa or India or Barbados
Get Smart SIM

Easy as 1,2,3

1
Enter your email
Check your email for a Smart SIM with your name on it.
Great taste, by the way.
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By submitting the above, you agree to Honest marketing communications. No spam, promise.
2
Download the Honest app
3
Login and add Smart SIM

Includes 200+ essential apps

All with unlimited data.
More apps added every week.
Search apps
  • Messaging
    + more
  • Travel
    + more
  • Navigation
    + more
  • Finance
    + more
  • Search
    + more
Search apps

Does Smart SIM really have
no hidden roaming fees?
Yes – it's just £10/month or £45/year for unlimited global roaming on 200+ apps. To stay so affordable, Smart SIM is limited to specific apps only.

  • Use your main SIM for:
  • Social media
  • Open web browsing
  • Video calls
  • Email

Plans

Monthly
For the occasional traveller
Cancel anytime
£10/month
Annual
Save 62.5%
For the jetsetter
Billed at £45/year
£3.75/month
Get Smart SIM
“Affordable unlimited roaming that’s been my travelling sidekick all the way from Mozambique to Sweden. Excited to travel more with Honest.”
Sam  Honest customer

Imagine if every time you lost signal you could just hop onto another mobile network

(We’re Andy and Josh by the way, Honest’s founders 👋)
We built Smart SIM to make that a reality
It works alongside your main SIM to provide unlimited data on 200+ apps across three major UK networks, plus free roaming in 180+ countries.

So when your signal drops or you go abroad, you automatically connect to another network. Keeping apps like WhatsApp, Google Maps, Uber and Monzo at your fingertips, with unlimited data to boot.

Fed up with bad signal, dodgy wifi and expensive roaming? It’s time to get a Smart SIM.
Get Smart SIM

Join thousands of happy customers making the switch

Got a question?
We’ve got the answer

What is Smart SIM?

Smart SIM is a data-only eSIM that works alongside your main SIM to give you peace of mind for your signal.

📶Better UK signal – 300+ essential apps with unlimited data on EE, O2 or Three when your main SIM loses signal

🌎Free global roaming – those same 300+ 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 and it’s there whenever you need it. No more bad signal, dodgy wifi or expensive roaming fees 👋

Will Smart SIM automatically connect me to EE, O2 or Three every time I lose signal?

Yes. When you completely lose signal, Smart SIM will automatically connect to the best available network (note this doesn’t happen if you’re just low on signal). iPhone users can also use our shortcut button to manually switch in seconds.

Is roaming on Smart SIM completely free?

Yes, from South Africa to Sri Lanka, Italy to India, Smart SIM has got your essential apps covered in 180+ countries (see the full list of available countries here). No hidden costs or scary bills to worry about while you’re away.

You’ll need to hop onto wifi for activities like web browsing or streaming.

Why isn’t every network offering a SIM like this?

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

After introducing Classic SIM to thousands of happy customers, we still felt signal and roaming could be better. So we developed Smart SIM.

How much is Smart SIM?

Smart SIM is £10/month on our 30-day plan, or £45 for the year if you choose our annual plan (that’s just £3.75/month 😮).

Can I use Smart SIM as my main SIM?

We love your enthusiasm, but it’s a no. You'll need your main SIM for calls and texts, social media and streaming, and web browsing. 

Smart SIM works alongside your main SIM, kicking in when you lose signal or go abroad. Think of it as your trusty back-up, there when you need it most.

Which apps can I use with Smart SIM?

All the most essential ones: WhatsApp, Google Maps, Uber, Citymapper, Monzo… the list goes on. You can see all 300+ apps Smart SIM works with here.

We’re adding more apps every week, so stay tuned 👀

Is data really unlimited for the 300+ apps?

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

Does Smart SIM include social media and streaming apps?

No. To keep Smart SIM affordable, it’s only for your most essential apps. If we included data-gobbling apps like social media and streaming, the price would skyrocket for everyone. We’re not about that.

Can I call and text with my Smart SIM?

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

Can I get a physical Smart SIM?

No, although this might change if enough people want it to. We created Smart SIM as a second SIM – as most phones only have one slot for a physical SIM, it’s eSIM only for now.

Because Smart SIM is a digital eSIM, you can add it to your phone and set up right away.

Just make sure your phone is eSIM compatible before ordering.

How do I get a Smart SIM?

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

Is Smart SIM the same as Classic SIM?

No. Classic SIM is your essential everyday UK SIM for texts, calls and data. It piggybacks on Three’s network.

Smart SIM is the ultimate second SIM, working alongside your main SIM (on any network) to give you 300+ apps on EE, O2 and Three and in 180+ countries around the world.

For the ultimate peace of mind when it comes to your signal, we recommend using both.

Can I use a VPN with Smart SIM?

No, and you don’t need to. Smart SIM is a VPN by default and fully secure. Think of it as a digital fortress for your data 🔒

Can't I use social media or streaming apps?

Afraid not. 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 300 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 😉

Supported countries

Available apps

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🇹🇳
Tunisia
🇹🇷
Turkey
🇹🇲
Turkmenistan
🇹🇨
Turks and Caicos Islands
🇺🇬
Uganda
🇺🇦
Ukraine
🇦🇪
United Arab Emirates
🇬🇧
United Kingdom
🇺🇸
United States of America
🇺🇾
Uruguay
🇺🇿
Uzbekistan
🇻🇺
Vanuatu
🇻🇪
Venezuela
🇻🇳
Vietnam
🇾🇪
Yemen
🇿🇲
Zambia
🇿🇼
Zimbabwe
1Password
AA
ABRP (A Better route planner)
Addison Lee
Aer Lingus
Airbnb
All.com Hotel Booking
AllTrails
Alton Towers
American Airlines
American Express
Amtrak
Apcoa Parking
Apple Maps
Apple News
Beta
Apple Translate
Apple Weather
Beta
Arriva - bus routes
Avanti West Coast
BBC News
BBC Sport
BBC Weather
BP Pulse
Bank of Scotland
Barclays
Bee Network
Beep Beep Taxi (Edinburgh)
BlaBlaCar
Blackpool Transport
Bluestar Buses
Bolt
May State it’s offline, but it’s online
Bolt Driver
Booking.com
Boolder
Borders Buses
Brighton & Hove Buses
British Airways
Buschecker UK
C2C
Caffè Nero
Campercontact - Camper Van
Cardiff Bus
Carousel Bus
Cathay Pacific
Chargeplace Scotland
Chase UK
ChatGPT
Beta testing
Chessington
Chiltern Railways
China Airlines
Cineworld
Citymapper
Claude AI
Connect (Garmin)
Coop Bank
Costa
Curve
D&G Bus
DB Navigator
DICE
Tickets only
Dashlane
Deliveroo
Deliveroo Rider
Diamond Buses
Disneyland Paris
EE
ESTA (US Visa)
East Midlands Railway
East Yorkshire Buses
Edinburgh/Lothian Bus & Tram
Enterprise Car Rental
Esso
Eurail/InterRail Rail Planner
Eurostar
Eurowings
Everyone Active
FREENOW
Facebook Messenger
Falcon Bus
Fasttrack Buses
Find My
First Bus
First Direct
Firstgroup
Flashscore
FlightRadar 24
Flixbus
Flo Period Tracker
Flush
Fly Delta
Forest Bikes
FotMob
GVB (Amsterdam transport authority)
Gail’s
Gatwick Airport
Gmail
Go North East
Go to Town Buses
GoCornwall Bus
Gojek