Get Smart SIM

Unbeatable UK signal and free global roaming on the ultimate second SIM
From £3.75/month
eSIM
Data only
  • Download Smart SIM in seconds
  • 14 day money back guarantee
  • Use alongside your main SIM

Get Smart SIM

Unbeatable UK signal and free global roaming on the ultimate second SIM
From £3.75/month
eSIM
Data only
  • Connect to EE, O2, Three and Vodafone
  • Free data roaming in 180+ countries
  • 500+ supported apps only

As easy as 1,2,3

1. Email
2. Choose plan
3. Download
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  • Download Smart SIM in seconds
  • 14 day money back guarantee
  • Use alongside your main SIM

Join thousands already using Smart SIM

“Works incredibly well when my signal drops out. Revolutionary.”
“On my regular commute I can see the phone swapping between Three, EE and O2 during the course of the
train journey”
“Smart SIM is a game changer and incredibly good value”
“A revolutionary product which works incredibly well when my normal network drops out”
"A refreshing take on poor signal. Great to be able to contact family no matter where we are."

Keeping you connected

From commute to countryside and across continents
No more lost signal on your commute
Send WhatsApp messages, keep tabs on train times, and map to your next destination without disruption
No more lost signal on your commute
“My new work route has so many blackout spots... Smart SIM fixes that. It’s been a no-brainer lifesaver and can only get better. I couldn’t recommend enough!”
Daniel
Peace of mind about staying connected
From city to the countryside
Peace of mind about staying connected
“I was right out in the sticks, my network had lost all bars and I was lost. So I switched to my Smart SIM and boom! Enough service to get maps to show me the right direction. I truly do thank my Smart SIM for saving me!”
James
Say goodbye to expensive roaming
Roam free in 180+ countries with no extra costs
Say goodbye to expensive roaming
“As soon as I turned off airplane mode, Smart SIM kicked in and I had maps, messages, and data in seconds. I found my route, messaged the hostel, and got there without stress. I couldn’t believe how easy and reliable it was. Total lifesaver.”
Mari

Plans

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

Plans

Annual
£3.75/month
save 25%. Billed annually.
Multiple UK networks
Free global roaming in 180+ countries
Download eSIM in minutes
Certified B Corp
Monthly
£5.00/month
Billed monthly. Cancel anytime.
Multiple UK networks
Free global roaming in 180+ countries
Download eSIM in minutes
Certified B Corp
Get early access

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

Join thousands already using Smart SIM

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

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

How do I use 400+ apps on Smart SIM when I lose signal or go abroad?

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

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 400+ apps Smart SIM works with here.

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

Is data really unlimited for the 400+ apps?

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

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 500+ apps on EE, O2, Three and Vodafone 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 400 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 😉

When can I get a Smart SIM?

The sooner you join the waitlist, the sooner it’ll be in your phone.

We’ve already started rolling out to the waitlist ahead of official launch.

We’ve been hard at work developing Smart SIM and are now in the testing phase, pushing it to its limits to make sure you get the best possible experience. We promise it’ll be worth the wait.

Supported countries

Unlimited data on supported apps

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🇰🇿
Kazakhstan
🇰🇪
Kenya
🇰🇮
Kiribati
🇽🇰
Kosovo
🇰🇼
Kuwait
🇰🇬
Kyrgyzstan
🇱🇦
Laos
🇱🇻
Latvia
🇱🇧
Lebanon
🇱🇸
Lesotho
🇱🇷
Liberia
🇱🇾
Libya
🇱🇮
Liechtenstein
🇱🇹
Lithuania
🇱🇺
Luxembourg
🇲🇴
Macao
🇲🇬
Madagascar
🇲🇼
Malawi
🇲🇾
Malaysia
🇲🇻
Maldives
🇲🇱
Mali
🇲🇹
Malta
🇲🇶
Martinique
🇲🇷
Mauritania
🇲🇺
Mauritius
🇾🇹
Mayotte
🇲🇽
Mexico
🇲🇩
Moldova
🇲🇨
Monaco
🇲🇳
Mongolia
🇲🇪
Montenegro
🇲🇸
Montserrat
🇲🇦
Morocco
🇲🇿
Mozambique
🇲🇲
Myanmar
🇳🇦
Namibia
🇳🇷
Nauru
🇳🇵
Nepal
🇳🇱
Netherlands
🇳🇱
Netherlands Antilles
🇳🇨
New Caledonia
🇳🇿
New Zealand
🇳🇮
Nicaragua
🇳🇪
Niger
🇳🇬
Nigeria
🇲🇰
North Macedonia
🇳🇴
Norway
🇴🇲
Oman
🚢
On Sea
✈️
Over the Air
🇵🇰
Pakistan
🇵🇸
Palestine
🇵🇦
Panama
🇵🇬
Papua New Guinea
🇵🇾
Paraguay
🇵🇪
Peru
🇵🇭
Philippines
🇵🇱
Poland
🇵🇹
Portugal
🇵🇷
Puerto Rico
🇶🇦
Qatar
🇷🇪
Reunion
🇷🇴
Romania
🇷🇺
Russia
🇷🇼
Rwanda
🇸🇲
San Marino
🇸🇹
Sao Tome and Principe
🇸🇦
Saudi Arabia
🇸🇳
Senegal
🇷🇸
Serbia
🇸🇨
Seychelles
🇸🇱
Sierra Leone
🇸🇬
Singapore
🇸🇽
Sint Maarten (Dutch part)
🇸🇰
Slovakia
🇸🇮
Slovenia
🇸🇴
Somalia
🇿🇦
South Africa
🇰🇷
South Korea
🇸🇸
South Sudan
🇪🇸
Spain
🇱🇰
Sri Lanka
🇧🇱
St. Barthelemy
🇰🇳
St. Kitts and Nevis
🇱🇨
St. Lucia
🇫🇷
St. Martin
🇻🇨
St. Vincent and the Grenadines
🇸🇩
Sudan
🇸🇷
Suriname
🇸🇪
Sweden
🇨🇭
Switzerland
🇸🇾
Syria
🇹🇼
Taiwan
🇹🇯
Tajikistan
🇹🇿
Tanzania
🇹🇭
Thailand
🇹🇱
Timor-Leste
🇹🇬
Togo
🇹🇴
Tonga
🇹🇹
Trinidad and Tobago
Derbyshire Live
Devon Live
Diamond Buses
Discord
Currently text-only
Disneyland California
Disneyland Paris
Dublin Live
Duolingo
E.ON Drive
EE
EMIS-X
ESTA (US Visa)
East Midlands Railway
East Yorkshire Buses
Economist
Edinburgh Live
Edinburgh/Lothian Bus & Tram
England Cricket
No videos
Enterprise Car Rental
Entur
Essex Live
Esso
Eurail/InterRail Rail Planner
European Coffee Trip
Eurostar
Eurowings
EventimUK
Everyone Active
Expedia
F1
FIFA
FREENOW
Facebook Messenger
Messaging only
Falcon Bus
Fantasy Premier League
Fasttrack Buses
Fever
Find My
First Bus
First Direct
Firstgroup
Flashscore
FlightRadar 24
Flighty
Flixbus
Flo Period Tracker
Flush
Fly Delta
Forest Bikes
FotMob
Fresha
Fuel Station Locator
GVB (Amsterdam transport authority)
Gail’s
Garmin Connect
Garmin Explore
No downloads
Gatwick Airport
Geocaching
Street-view map only
GetYourGuide
Glasgow Live
Glastonbury
Gloucestershire Live
Gmail
Go Jauntly
Go North East
Go to Town Buses
GoCornwall Bus
Gojek
GoodSAM Responder
Google
Search results only - not for general web browsing
Google Find My Device
Google Gemini
Google Home
Google Maps
Google Translate
Google Wallet
Grab
Rides only
Grand Central Trains
Great Western Railway
Green Flag
Greggs
Gridserve
Guardian
H&C Bus
HMRC
HSBC
HVV App
Halifax
Happy Cow
Hargreaves Lansdown
Hawaiian Airlines
Heathrow App
High Peak
Hilton Honours
Honest
Hoppy Mobility
Hostelworld
Hull Live
Hull Trains
ICC
Match centre and articles only