SMARTY Mobile Review 2025: Is It Worth It?

Picture of Written by Leena

Written by Leena

Senior Editor

smarty mobile sim only review

On This Page


SMARTY at a Glance

  • Network: Runs on Three’s 4G/5G network.
  • Contracts: No long-term commitments – 30-day rolling plans only.
  • Prices: Reasonable prices for all plans including unlimited data.
  • Perks: Money back on unused data, free EU roaming, free SIM delivery.
  • Downsides: No eSIM support yet (but rumours say it’s coming soon).

SMARTY SIM-Only Plans: What’s on Offer?

SMARTY’s bread and butter is its SIM-only deals, and they’re some of the cheapest in the UK. Here’s the latest lineup:


SMARTY SIM Only

smarty small logo olimit (1)
Uses Three’s Network
170GB
of 5G data
No Contract
£12
Cancel Anytime

12GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

SMARTY SIM Only

smarty small logo olimit (1)
Uses Three’s Network
100GB
of 5G data
No Contract
£10
Cancel Anytime

12GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

SMARTY SIM Only

smarty small logo olimit (1)
Uses Three’s Network
65GB
of 5G data
No Contract
£8
Cancel Anytime

12GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

SMARTY SIM Only

smarty small logo olimit (1)
Uses Three’s Network
35GB
of 5G data
No Contract
£7
Cancel Anytime

12GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

SMARTY SIM Only

eSIM
Available
smarty small logo olimit (1)
Uses Three’s Network
Unlimited
5G data
No Contract
£17
Cancel Anytime

12GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

SMARTY SIM Only

eSIM
Available
smarty small logo olimit (1)
Uses Three’s Network
95GB
of 5G data
No Contract
£9
Cancel Anytime

12GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

SMARTY SIM Only

smarty small logo olimit (1)
Uses Three’s Network
95GB
of 5G data
No Contract
£9
Cancel Anytime

12GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

SMARTY SIM Only

smarty small logo olimit (1)
Uses Three’s Network
5GB
of 5G data
No Contract
£6
Cancel Anytime

5GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

SMARTY SIM Only

smarty small logo olimit (1)
Uses Three’s Network
65GB
of 5G data
No Contract
£8
Cancel Anytime

12GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

SMARTY SIM Only

smarty small logo olimit (1)
Uses Three’s Network
35GB
of 5G data
No Contract
£7
Cancel Anytime

12GB

🇦🇽 Åland Islands
🇦🇹 Austria
🇵🇹 Azores
🇪🇸 Balearic Islands
🇧🇪 Belgium
🇧🇬 Bulgaria
🇮🇨 Canary Islands
🇾🇹 Comoros & Mayotte
🇭🇷 Croatia
🇨🇾 Cyprus
🇨🇿 Czech Republic
🇩🇰 Denmark
🇪🇪 Estonia
🇫🇮 Finland
🇫🇷 France
🇬🇫 French Guiana
🇩🇪 Germany
🇬🇮 Gibraltar
🇬🇷 Greece
🇬🇵 Guadeloupe
🇭🇺 Hungary
🇮🇸 Iceland
🇮🇪 Ireland
🇮🇹 Italy
🇱🇻 Latvia
🇱🇹 Lithuania
🇱🇺 Luxembourg
🇵🇹 Madeira
🇲🇹 Malta
🇲🇶 Martinique
🇳🇱 Netherlands
🇳🇴 Norway
🇵🇱 Poland
🇵🇹 Portugal
🇷🇪 Réunion
🇷🇴 Romania
🇧🇱 Saint Barthélemy
🇲🇫 Saint Martin
🇸🇲 San Marino
🇸🇰 Slovakia
🇸🇮 Slovenia
🇪🇸 Spain
🇸🇪 Sweden
🇻🇦 Vatican City

Get money back for unused data each month
No Credit Checks
No Annual Price Rise

Key Notes:

  • ✅ All plans include EU roaming (up to 12GB in Europe).
  • ✅ No credit checks – perfect if you’re rebuilding your score.
  • ✅ Flexibility: Change your plan monthly – no penalties.

SMARTY Contracts: The Good and the Meh

Let’s tackle the big question: “Does SMARTY do contracts?” Nope. And that’s the beauty of it. All plans are 30-day rolling, so you’re not locked in. If you hate it, cancel anytime.


What SMARTY Does Well

Money-Back Data: Use 8GB of your 12GB plan? Get refunded for what you didn’t use. It’s not life-changing, but it’s a nice touch. ✔ One of the cheapest unlimited plans in the UK. Three’s network means decent speeds, too. ✔ Free SIM Delivery: No upfront costs – they’ll post it to your gaff for free. ✔ EU Roaming: No extra fees for using your data in Europe (capped at 12GB, though).


Where SMARTY Falls Short

No eSIM Support (Yet): Annoying for travellers who want to ditch physical SIMs. But word on the street is SMARTY’s working on it. Check who offers e-sims here.

Three’s Coverage: Great in cities like London, Manchester, or Birmingham, but rural areas can be hit-or-miss. During mass gatherings such as protests, the network may has issues delivering data. Check Three’s coverage map before committing.

Basic Customer Service: No phone support – it’s all done via online chat or community forums.


SMARTY vs. Olimit.co.uk: Which is Cheaper?

If you’re hunting for the cheapest SIM-only deals, sites like Olimit often highlight SMARTY as a top pick. But here’s the tea:

  • SMARTY’s unlimited plan (£20) is £5-£10 cheaper than most rivals (EE, Vodafone).
  • However, if you don’t need unlimited data, we list smaller MVNOs (like 1pMobile or Lyca) with slightly better prices for low-data users.

For example:

  • 1pMobile (EE network): 10GB for £10 vs. SMARTY’s 12GB for £10. Not a huge difference, but EE’s coverage is better in rural spots.

💡 Our thoughts: SMARTY wins for unlimited data and flexibility, but shop around for low-data plans.


Should You Get SMARTY?

Yes if:

  • You want a cheap, flexible SIM-only plan.
  • You’re a heavy data user (that £20 unlimited deal is golden).
  • You’re in a city with solid Three coverage.

No if:

  • You need eSIMs right now (hold out for their rumoured 2024 update).
  • You’re in the countryside – check Three’s map first.
  • You want perks like free Netflix or Amazon Prime (look at Voxi or O2 instead).

How to Get SMARTY

1️⃣ Order a free SIM from their website. 2️⃣ Choose your plan – no upfront payment. 3️⃣ Pop the SIM in your phone and done.

No frills, no fuss.


Rating:

⭐⭐⭐⭐☆ (4/5)

Cheap, flexible, and ideal for data lovers – just don’t expect hand-holding customer service.


There you go – a no-BS review that’s sharper than a Cockney’s wit. Now go save yourself some quid! 🇬🇧📱

Scroll to Top
blank

Join Olimit

Be the first to know about new plans, offers and updates

Move your mouse*

Click anywhere to fly*

blank
blank