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5 reasons you'll wish you got a back-up eSIM sooner

Get peace of mind about staying connected on your essential apps

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5 stars4.7 stars | 65k+ Customers
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Ever been stung by rubbish signal or sky-high roaming bills? This one's for you.

Smart SIM is a first-of-its-kind, data-only eSIM that works alongside your main SIM. It gives you access to every UK network, plus networks in 180+ countries abroad on all your essential apps.

Lose signal on your countryside walk or daily commute? Just switch on your Smart SIM and WhatsApp away. Land straight off the plane and need an Uber to your Airbnb? Just switch on your Smart SIM, message your host and book a cab.

Here's why 65,000+ happy customers are using Smart SIM at home and on holiday, for less than the price of a coffee every month:

1

Unbeatable signal on EE, O2, Three and Vodafone on 500+ essential apps

Say goodbye to getting stranded in signal dead zones. Whenever your main SIM loses signal, you can switch to Smart SIM in just a few taps to keep using 500+ apps on another available network.

So you can stay connected on apps like WhatsApp, ChatGPT and Google Maps – whether you're on the commute, in the city, or deep in the countryside.

Smart SIM
Main SIM

The ultimate backup eSIM for 500+ apps

Your main SIMYour main SIM + Smart SIM
Signal on every UK network
Free roaming in 180+ countries
Unlimited data for 500+ apps
Signal peace of mind
One eSIM for every trip
No more dead zones
2

Free global roaming in 180+ countries on 500+ essential apps

Travel like a local. From Spain to South Africa, Italy to India, Smart SIM keeps you connected with no roaming charges.

Use essential apps like WhatsApp, Google Maps, Booking.com and hundreds more wherever you land. Ciao adios, patchy hotel wifi, expensive roaming and pesky data caps.

Free roaming notifications
3

From just £3.75/month with no hidden fees

One flat fee, no catches. Choose between £10/month or £45/year (that's just £3.75/month) for total peace of mind that you'll stay connected when it matters most.

Airplane window view
£0 Extra charges
4

Trusted by 65,000+ happy customers

Here's what they have to say about Smart SIM.

Trustpilot 5 stars

I was sceptical but...

“I decided to take a chance and get a Smart SIM. My experience so far has been great. I’ve had no loss of signal and used different networks due to the SIM working its magic. 5 stars from me.”
Thomas Berry|TrustpilotVerified
Trustpilot 5 stars

A genuine upgrade

“I’ve struggled for years with dead spots and unreliable eSIMs, but Honest Mobile has been a total revelation. Local and international coverage just works.”
Steve Dunn|TrustpilotVerified
5 stars

Worked in 8 Caribbean islands

“Smart SIM worked perfectly in every one, even in the Dominican rainforest.”
Simon Fisk|FacebookVerified
Trustpilot 5 stars

Seamless and just works

“I used to spend a fortune in roaming fees and travel eSIMs. Now I don’t think about staying connected when I’m abroad. Smart SIM is seamless and just works. Brilliant.”
Ade T|TrustpilotVerified
5 stars

Like wifi at home

“I got my Smart SIM, easily set it up and I can’t believe how good it is. It’s like I’m on wifi at home. Everything loading. For £45 it’s a no brainer.”
ob1wales|InstagramVerified
5 stars

An absolute life saver

“Great when signal drops out and an absolute life saver when in Australia last year.”
mko.mcguckin|InstagramVerified
5

Set up in minutes

Smart SIM works alongside your main SIM, so there's no waiting around for your contract to end. Order, download and activate in just a few minutes.

Plus, our 14-day money-back guarantee means in the unlikely event that Smart SIM isn't for you, we'll give you a full refund. Simple as that.

Try Smart SIM for yourself

500+ apps on every UK network, plus hundreds more worldwide. Data-only eSIM that works alongside your main SIM.

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5 Reasons You'll Wish You Got a Back-up eSIM Sooner | Honest Mobile