Get Smart SIM

1 SIM
3 UK networks

Connect to EE, O2 and Three from £3.75/month
Get Smart SIM

Signal when you need it most

200+ essential apps on EE, O2 and Three
Stay connected on your commute
Find your way in poor signal areas
Peace of mind for friends and family
Keep connected in the countryside
Get Smart SIM
Unlimited data
Includes WhatsApp calls
With your main SIM's number
Free roaming in 180+ countries
Use EE, O2 and Three
5G
In the UK and beyond
Data only
Use your main SIM for calls and texts

The UK’s most affordable
multi-network SIM

From £3.75/month
Price
Data
Multi-network
Smart SIM
£3.75/month
£45 paid annually
Or £10 paid monthly
Unlimited data
Restricted to
200+ essential apps
EE, O2, Three
Anywhere SIM
£55/month
£660 paid annually
10GB/month
Open internet access
EE, O2, Three, Vodafone
Get Smart SIM

Includes 200+ apps

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

How is Smart SIM so affordable?
Unlike other multi-network SIMs, Smart SIM is for essential apps only. So you have peace of mind about staying connected, without the sky-high costs.

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

Easy as 1,2,3

1
Start by entering your email
Check your email for a Smart SIM with your name on it.
Great taste, by the way.
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2
Download the Honest app
3
Login and add Smart SIM

Plans

Monthly
Cancel anytime
£10/month
Annual
Save 62.5%
Billed at £45/year
£3.75/month
Get Smart SIM

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 – 200+ essential apps with unlimited data on EE, O2 or Three when your main SIM loses signal

🌎Free global roaming – those same 200+ 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 200+ apps Smart SIM works with here.

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

Is data really unlimited for the 200+ 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 web browsing, 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 200+ 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 200 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
Met Office Weather Forecast
Metrobus
MiPermit
Midland Bluebird
Monzo
Morebus
My Disney Experience (Florida)
NCTX Buses
NHS
NS International
National Express
Nationwide
Natwest
NaviLens
Octopus Electroverse
Octopus Energy
Oxford Bus
Oxford Tube
Park4Night
Parkopedia
Passenger Assistance
PayByPhone
PayPal
Plymouth Citybus
Pop
Priority Pass
PureGym
RAC
Railcard
Reading Buses
Revolut
RingGo
Runna
Ryanair
SNCF Connect
Santander
Scotrail
Seatfrog
Shell Recharge
Signal
Messaging only
Singapore Airlines
Sky Sports News
Skyscanner
Slack
Sleafordian
Sofascore
South Eastern Rail
South Western Rail
Southern Rail
Southern Vectis
Spirit Airlines
Splitwise
Square
Stage Coach
Starling
StayFree Wild Camping
SumUp
Swindon Bus
TFL Oyster
TUI
Tesla
TfL Cycle Hire
TfL Go
TfL Tube Map
Thames Valley Buses
Touch & Go (Warrington Buses)
Trainline
Trainpal
Transit
Translink NI
Tripadvisor
Turkish Airlines
Uber
Uber Driver
United Airlines
Uno buses
Virgin Atlantic
Virgin Money Credit Card
Vision Buses
Voi
Waze
WhatsApp
Messaging and voice calls
WhatsApp Business
Windy.com
Wise
Wizz air
Yale Smart Living Alarm
Yorkshire Building Society
YourParkingSpace
ZapMap
Zipcar
easyJet
iMessage
Messaging only
iZettle
jak dojadę
what3words