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Unbeatable UK signal,
hassle-free roaming

Use alongside your regular SIM for unlimited essential apps on the big 4 UK networks and around the world.

Only with Smart SIM.
"Smart SIM is a game changer and incredibly good value"
Josh - Honest Smart SIM customer
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Unlimited data for essential apps

Use alongside your main SIM for just £5/month
More added every week

Unbeatable
UK signal

Get the best chance of staying connected, from the countryside to the commute.

Connect to all 4 UK networks.
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Hassle-free
roaming

Unlimited essential apps in 180+ countries from the moment you land.

No more expensive roaming, relying on wifi or data caps.
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Set up in
seconds

A data-only eSIM that’s there when you need it.

Use alongside your existing SIM

The ultimate boost for your SIM, no matter which network you’re with.
Now rolling out

Get early access

Join the waiting list now to be among the first to get Smart SIM at an exclusive beta price of just £5/month.
Beta
By joining the waiting list you agree to Honest sending you marketing communications including the latest Smart SIM updates.
Smart SIM
Beta
£5/month exclusive beta price
Join waiting list

How does Smart SIM work?

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Set up in seconds

Download Smart SIM once and it’ll kick in whenever you need it. You’ll still need your primary SIM for calls and texts.
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Switch between UK networks

Join the strongest network in just a few taps. Giving you the best chance of staying connected while using essential apps.
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Join local networks abroad

Use essential apps on your travels, without the expensive roaming fees or relying on wifi.
Beta

Join the waiting list

Unlimited data for essential apps. Only on Smart SIM.
Join waiting list

Got a question?
We’ve got the answer

Why haven’t I heard of Smart SIM before?
Where else can I get a Smart SIM?
Can I make WhatsApp calls?
What is an eSIM?
How can I get a Smart SIM?
Is an eSIM the same as a Smart SIM?
When can I get a Smart SIM?
What’s the ‘beta’ all about?
Is data really unlimited?
Will Smart SIM always be £5/month? 
Does Smart SIM really work in 180+ countries?
Can I call and text with my Smart SIM?
Which apps can I use with Smart SIM?
What is Smart SIM?
Does a Smart SIM replace my existing SIM?
Do I have to be an Honest customer already to get Smart SIM?
Does Smart SIM switch networks automatically?