Cookies on the SIM Sherpa website

We use cookies to track which pages on our website readers visit most. This helps us understand which topics people find interesting, to write more articles about them.

You can accept these tracking cookies or choose to block them. You can change these settings at any time.

X close

✖ Tracking cookies deleted and blocked

Ok, we will not track your page views as you move around any part of the SIM Sherpa website. But we will use that one cookie to remember you don't want to be tracked.

Click here to unblock tracking cookies

X close

✔ Cookies accepted

Thank you for accepting cookies for the SIM Sherpa website. This will help us constantly improve our content.

If you ever want to change your cookie settings for our website, go to our Cookies page here.

SMARTY SIM only plans: how their best deals compare on price

SMARTY logo with a SIM cardVisit

The retailers featured on this page may compensate us when our readers follow links to their websites and make a purchase. More

Are each of SMARTY's SIM only deals the cheapest in the UK for the data they give you? We compare with other networks to find out. SIM Sherpa is your trusty guide. Last updated: 1st December 2023.

SMARTY's best SIM only deals

This month's overall best SMARTY SIM only deal

Unlimited data
a month

1-month dealGet this deal

(opens in new window)

SMARTY's best SIM only plan this December in our opinion is their £15, 1‑month deal below, which comes with unlimited data, plus unlimited minutes and texts for your money:

In comparison to the rest of SMARTY's current SIM only plans, it's one of the best. But it is beatable on price, even if you're set on joining a provider that uses the Three network. See lower-priced networks' deals here:

Their £8 SIM with 32GB is our next favourite this December

32GB data
a month

1-month dealGet this deal

(opens in new window)

If that's more data than you need, we'd say this is one of SMARTY's best deals on SIM only this month too. It's a 1‑month plan, comes with 32GB data, unlimited minutes and texts for £8 a month:

It does enough to get into our pick of SMARTY's best SIMs but that doesn't mean it's unbeatable on price. Other providers (even ones that use the Three network) can beat it. Here are other networks you can beat it on:

We also like their £5 for 5GB plan

5GB data
a month

1-month dealGet this deal

(opens in new window)

For less data to use each month, have a look at SMARTY's 5GB SIM below at £5 a month, as it's another good deal. It's on a 1‑month plan and comes with 5GB data, unlimited minutes and texts:

It isn't actually the cheapest 5GB data or more SIM available overall this month but if you definitely need your plan to use the Three network, it is the lowest cost option. See the networks with cheaper plans here:

Their 125GB for £12 SIM is another good option

125GB data
a month

1-month dealGet this deal

(opens in new window)

SMARTY's 8GB for £7 plan is a good option too

8GB data
a month

1-month dealGet this deal

(opens in new window)

Compare all SIM only plans

Compare deals from all networks

How SMARTY's deals compare with other networks

SIM card with magnifying glass



1p Mobile logo
Three logo
ASDA logo
Boshhh Mobile logo
Coop Mobile logo
EE logo
Genius logo
giffgaff logo
Honest logo
ID logo
IQ logo
Lebara logo
Lycamobile logo
O2 logo
Sky logo
Talkhome logo
Talkmobile logo
Tesco logo
Vodafone logo
VOXI logo


Data: (0MB+)

Minutes: (0+)


Maximum length: (Any)

Added features

More about SMARTY's SIM only plans

How SMARTY compare for benefits and SIM only prices

Ratings stars and the SMARTY logo

We go into more detail in our reviewRead our full review

(opens in new window)

In our full review of SMARTY we like the fact that you get full access to Three’s brilliant 5G network while also getting good WiFi calling and 4G calling (see our Three vs SMARTY guide here).

They offer all their plans as 1-month no-contract deals. They have a wide range of data plans and typically share better value hidden deals with comparison websites like us which are worth keeping an eye out for.

SMARTY are usually one of the cheapest of all UK networks, and are probably the cheapest provider on Three’s network (alongside iD Mobile).

You don’t get many extra benefits on SMARTY. You do get 10% off any extra plans you add to your account. On top of that, SMARTY promise not to raise the cost of your plan while you’re with them.

Useful link: Read our full SMARTY review

What else you should know about SMARTY’s SIM only deals

Screenshot of SMARTY's coverage checker

Check signal in your areaCheck your signal

(opens in new window)

You’ll receive your SMARTY SIM card within 2 working days of ordering. You’ll receive a package with every size of SIM for any phone. But you can’t get an eSIM on SMARTY (these networks do offer them).

After your SIM arrives you’ll have 14 days to return it if you’re not satisfied. You’ll only get a refund for what you haven’t used. Here are the full details on how to return your SMARTY SIM.

You don’t need to pass a credit check to join SMARTY as you pay for your plan up front. That makes them a great alternative if you failed a credit check for a Three SIM only contract but want to use their network.

If you want to switch over to SMARTY from another network and you want to keep your number you’ll have to request a PAC from your current provider and send it to SMARTY when you’re ready to switch (here’s how).

Useful link: Compare all SMARTY SIMs

Other SMARTY guides