Recommendations

Everyone wants a good deal when buying a new SIM contract but with so much choice it can be confusing. As with any financial contract it's important to choose the right plan for you - especially if you're about to commit to a 12 month deal. 

Because budget is one of the biggest factors in choosing a new deal we've compared offers across various price points. Simply decide how much you want to spend and compare deals from the top UK networks. 

Show me deals...

Under £10

£10+

£15+

£20+

£25+

£30+

If you're looking for something specific, like tethering or you want to compare all offers, try our comparison tool at the bottom of this page or visit our Help and Advice page for in depth advice on anything from capped contracts to choosing the best SIM contract for you.

At WhatSIM we believe in offering clear and honest advice. We don't accept payments to promote particular deals so you can be sure that our opinions are our own and these results are based on value for money alone. 

SIMs for less than £10

Without the repayments for a phone included in the monthly bill, SIM only deals can be incredibly low cost - starting from as little as £5 per month. Though you won't find many £5 deals from the big mobile networks there's plenty on offer from the smaller Mobile Virtual Network Operators like giffgaff and Tesco Mobile, who both use O2's network, or Virgin Mobile and The People's Operator, who both run on EE.

At this price our favourite is Virgin Mobile, on EE's network. This plan is great if you love to talk and on allowances alone you won't find more calls for your money. Virgin Mobile is 3G only so you won't be able to take advantage of EE's 4G network, however existing Virgin Media customers can take advantage of free calls to other Virgin Mobile numbers. 

To see all available deals under £10 a month try our comparison tool at the bottom of this page.

12 month SIM deals for under £10

 

30 day SIM deals for under £10

Network

Runs On

Minutes

Texts

Data

Price

 

Network 

Runs On

Minutes

Texts

Data

Price

Three SIM Only

 

200

Unlimited

500MB 4G

£8.00

 

EE

1000

Unlimited

500MB 3G

£8.00

Tesco SIM Only

O2

250

5000

500MB 3G

£7.50

 

Tesco SIM Only

O2

250

5000

No data

£7.50

EE SIM Only

 

250

Unlimited

250MB 4G

£9.99

  giffgaff SIM Only

O2

250

Unlimited

500MB 3G

£7.50

O2 SIM Only  

100

Unlimited

100MB 4G

£8.50

  O2 SIM Only

 

100

Unlimited

100MB 3G

£9.50

Vodafone SIM Only

 

300

500

250MB 3G

£9.50

 

The People's Operator SIM Only

EE

750

750

1500MB 3G

£9.99

Show me deals...

Under £10

£10+

£15+

£20+

£25+

£30+

 SIMs from £10

You can get some surprisingly good value deals for around £10 from some of the bigger networks. For example, Three offer a sizeable chunk of 4G data (2GB to be exact) for £11 and inclusive roaming in selected countries. Three's 4G network is the smallest of the Big 4 operators in the UK, so check your coverage before you buy. 

To see all available deals for around £10 a month try our comparison tool at the bottom of this page.

12 month SIM deals from £10 a month

 

30 day SIM deals from £10 a month

Network

Runs On

Minutes

Texts

Data

Price

 

Network

Runs On

Minutes

Texts

Data

Price

Three SIM Only

 

200

Unlimited

2GB 4G

£11.00

  Three SIM Only

 

600

Unlimited

1GB 4G

£14.00

Tesco SIM Only

O2

1500

5000

2GB 4G

£12.50

  Tesco SIM Only

O2

1000

5000

1GB 4G

£12.50

O2 SIM Only

 

500

5000

500MB 4G

£13.50

  O2 SIM Only

 

300

Unlimited

300MB 3G

£12.50

Vodafone SIM Only

 

900

Unlimited

500MB 4G

£14.00

  Vodafone SIM Only

 

300

500

250MB 3G

£11.50

EE SIM Only

 

500

Unlimited

500MB 4G 

£12.99

  EE SIM Only  

250

Unlimited

250MB 4G

£12.99

              The People's Operator SIM Only

EE

Unlimited

Unlimited

6GB 3G

£14.99

              giffgaff SIM Only

O2

500

Unlimited

1GB 4G

£12.00

             

EE

Unlimited

Unlimited

1GB 3G

£12.00

Show me deals...

Under £10

£10+

£15+

£20+

£25+

£30+

 SIMs from £15

Three is the only network at this price to offer unlimited 4G. In reality, because of Three's Fair Use Policy, unlimited means 1000 GB a month, though frankly if you're hitting your data limit each month we're a little worried about you. You also get 4GB of tethering allowance and can use up to 25GB of data in any of Three’s Feel at Home countries. As we’ve said before Three’s 4G network is comparatively smaller than that of EE, O2 and Vodafone, so check your coverage before you buy.

It's worth noting that around 50% of UK mobile consumers use around 600 minutes and up to 3GB data a month. For £15 you can get 2GB - 3GB 4G data and unlimited calls and texts from most of the big mobile networks. Consider your own mobile phone use before you buy; it's not worth paying extra for allowances you won't use.

To see all available deals for around £15 a month try our comparison tool at the bottom of this page.

12 month SIM deals from £15 a month

 

30 day SIM deals from £15 a month

Network

Runs On

Minutes

Texts

Data

Price

 

Network

Runs On

Minutes

Texts

Data

Price

EE SIM Only

 

Unlimited

Unlimited

2GB 4G

£15.99

  EE SIM Only

 

Unlimited

Unlimited

1GB 4G 

£18.99

Tesco SIM Only

O2

5000

5000

3GB 4G 

£17.50

  Tesco SIM Only

O2

3000

5000

2GB 4G

£17.50

Three SIM Only  

200

Unlimited

Unlimited 4G

£17.00

  Three SIM Only  

600

Unlimited

4GB 4G

£19.00

EE

Unlimited

Unlimited

3GB 3G

£15.00

 

EE

Unlimited

Unlimited

1GB 3G

£17.00

O2 SIM Only  

Unlimited

Unlimited

2GB 4G

£18.00

  O2 SIM Only  

500

Unlimited

500MB 4G

£15.50

Vodafone SIM Only  

Unlimited

Unlimited

3GB 4G

£19.80

  Vodafone SIM Only  

Unlimited

Unlimited

1GB 4G

£19.00

              giffgaff SIM Only

O2

1000

Unlimited

5GB 4G

£18.00

Show me deals...

Under £10

£10+

£15+

£20+

£25+

£30+

SIMs from £20

Three is the only network to offer unlimited 4G data for around £20. As they operate the smallest 4G network, if you're not covered by Three then Tesco Mobile, using O2's more widespread network, offer 3000 minutes and 6GB 4G for £22.50 per month. 

Both networks allow tethering; Tesco Mobile will let you use all of your 6GB data allowance if you want to, but you'll only be allowed up to 4GB of your unlimited data with Three. However Three do include roaming to selected countries as standard on all of their pay monthly plans. If you're planning any trips away this is worth considering as Tesco Mobile don't offer roaming add-ons.

To see all available deals for around £20 a month try our comparison tool at the bottom of this page.

12 month SIM deals from £20 a month

 

30 day SIM deals from £20 a month

Network

Runs On

Minutes

Texts

Data

Price

 

Network

Runs On

Minutes

Texts

Data

Price

Three SIM Only  

600

Unlimited

Unlimited 4G

£22.00

  Three SIM Only  

200

Unlimited

Unlimited 4G

£20.00

EE SIM Only  

Unlimited

Unlimited

3GB 4G

£21.99

  EE SIM Only  

Unlimited

Unlimited

3GB 4G

£24.99

Vodafone SIM Only  

Unlimited

Unlimited

6GB 4G

£24.30

  Vodafone SIM Only  

Unlimited

Unlimited

3GB 4G

£24.00

Tesco SIM Only

O2

3000

5000

6GB 4G

£22.50

  Tesco SIM Only

O2

5000

5000

4GB 4G

£22.50

O2 SIM Only  

Unlimited

Unlimited

4GB 4G

£22.00

  O2 SIM Only  

Unlimited

Unlimited

2GB 4G 

£23.00

             

EE

Unlimited

Unlimited

5GB 3G 

£23.00

Show me deals...

Under £10

£10+

£15+

£20+

£25+

£30+

SIMs from £25

Our research shows that around 25% of UK mobile consumers get through 1000 minutes and 5GB+ of data a month. If this sounds like you then Three is the only network to offer unlimited everything, and at less than £30 a month this is our favourite deal. Three do operate the smallest 4G network, this shouldn't be an issue if you live within a town or city, but check your coverage before you buy. Three's plan also comes with limited inclusive roaming including up to 25GB data roaming and 4GB UK tethering. 

Many of the bigger networks now only offer 4G contracts and though you won't find any 3G deals at this price point you'll still be able to access the networks 3G services while you wait for the 4G rollout to reach you.

To see all available deals for around £25 a month try our comparison tool at the bottom of this page.

12 month SIM deals from £25 a month

 

30 day SIM deals from £25 a month

Network

Runs On

Minutes

Texts

Data

Price

 

Network

Runs On

Minutes

Texts

Data

Price

Three SIM Only  

Unlimited

Unlimited

Unlimited 4G

£27.00

  Three SIM Only  

600

Unlimited

Unlimited 4G 

£25.00

Vodafone SIM Only  

Unlimited

Unlimited

10GB 4G

£27.20

  O2 SIM Only  

Unlimited

Unlimited

5GB 4G

£28.00

Tesco SIM Only

O2

5000

5000

8GB 4G

£25.00

  Tesco SIM Only

O2

3000

5000

8GB 4G 

£27.50

O2 SIM Only

 

Unlimited

Unlimited

7GB 4G

£25.00

             
EE SIM Only

 

Unlimited

Unlimited

5GB 4G 

£27.99

 

           

Show me deals...

Under £10

£10+

£15+

£20+

£25+

£30+

SIMs from£30

You’ll find a strong selection of deals from all of the big networks for much less than £30 so, if you haven’t already, take a look at the deals listed from £20 and £25

Vodafone is one of the more expensive providers but with a well-established network they have a positive reputation for reliability and coverage. Vodafone’s Red XXL plan is currently offered with a£10 discount on its usual price of £40. If it's extras that you look for in a SIM deal then Vodafone's Red XXL plan, which comes with 20GB 4G, also includes a 12 month entertainment pack for Now TV, Spotify or Sky Sports Mobile TV potentially saving you up to £100 a year on subscriptions.

To see all available deals for around £30 a month try our comparison tool at the bottom of this page.

12 month SIM deals from £30 a month

 

30 day SIM deals from £30 a month

Network

Runs On

Minutes

Texts

Data

Price

 

Network

Runs On

Minutes

Texts

Data

Price

Vodafone SIM Only  

Unlimited

Unlimited

20GB 4G

£30.00

 

Three SIM Only

 

Unlimited

Unlimited

Unlimited 4G 

£30.00

              EE SIM Only

 

Unlimited

Unlimited

5GB 4G

£30.99

Tip: You can filter by SIM Type or device model by using the options on the left, but you don't have to. We can deal with that later.
Plan Type Contract Minutes Texts Internet Extras Monthlysort descending
Tablet Deal The People's Operator SIM Only deals from £4.99
1 month
1GB
3GInternet
£4.99 Buy / Choose SIM
Saver £4.99 The People's Operator SIM Only deals from £4.99
1 month
250 250 250MB
3GInternet
£4.99 Buy / Choose SIM
Mobile Broadband Three SIM Only
1 month
250MB
4GInternet
  • Three Feel at Home
  • Free WiFi on the London Underground
£5.00 Buy / Choose SIM
Value Plan TalkTalk Mobile
1 month
100 250 200MB
3GInternet
£5.00 Buy / Choose SIM
Hokey Cokey giffgaff SIM Only deals from £5
1 month
60 300 20MB
3GInternet
  • Free calls to 0800 and 0500 numbers
  • Free to same network calls and texts
  • Free minute for every minute you are called
£5.00 Buy / Choose SIM
250MB Plan Existing Customers Virgin SIM Only
1 month
250 Unlimited 250MB
3GInternet
£5.00 Buy / Choose SIM
250MB Plan Virgin SIM Only
12 months
250 Unlimited 250MB
3GInternet
£5.00 Buy / Choose SIM
£7.50 Tesco SIM Only
12 months
250 5,000 500MB
3GInternet
£7.50 Buy / Choose SIM
No Data Tesco SIM Only
1 month
250 5,000
£7.50 Buy / Choose SIM
No Data Tesco SIM Only
12 months
500 5,000
£7.50 Buy / Choose SIM
Goodybag £7.50 giffgaff SIM Only deals from £5
1 month
200 Unlimited 250MB
3GInternet
  • Free calls to 0800 and 0500 numbers
  • Free to same network calls and texts
£7.50 Buy / Choose SIM
Small Plan Extra Data TalkTalk Mobile
12 months
250 250 300MB
3GInternet
£7.90 Buy / Choose SIM Offer: Online offer: Twice as much data included compared to buying in-store!
Small Plan Extra Minutes TalkTalk Mobile
12 months
300 Unlimited 250MB
3GInternet
£7.90 Buy / Choose SIM
500MB Data Three SIM Only
12 months
200 Unlimited 500MB
4GInternet
£8.00 Buy / Choose SIM
500MB Plan Existing Customers Virgin SIM Only
1 month
1,000 Unlimited 500MB
3GInternet
£8.00 Buy / Choose SIM
500MB Plan Virgin SIM Only
12 months
1,000 Unlimited 500MB
3GInternet
£8.00 Buy / Choose SIM
O2 SIM Only 4G O2 SIM Only
12 months
100 Unlimited 100MB
4GInternet
  • Tethering
  • Free WiFi on the London Underground
£8.50 Buy / Choose SIM
O2 4G Mobile Broadband O2 SIM Only
12 months
100 500MB
4GInternet
£8.50 Buy / Choose SIM
O2 4G Mobile Broadband O2 SIM Only
1 month
100 500MB
4GInternet
£8.50 Buy / Choose SIM
Not sure? Don't know what kind of SIM card you need (or your device model isn't in the list)? Click here for help.
Contract SIM Type Minutes Texts Internet Extras Monthlysort descending Buy Now
The People's Operator SIM Only deals from £4.99
1 month
Nano SIM for phones
Nano SIM
1GB
3GInternet
  • TPO: 10% of your bill goes to a charity of your choice
£4.99
The People's Operator logo
Buy NowMore Info...
The People's Operator SIM Only deals from £4.99
1 month
Nano SIM for phones
Nano SIM
250 250 250MB
3GInternet
  • TPO: 10% of your bill goes to a charity of your choice
£4.99
The People's Operator logo
Buy NowMore Info...
The People's Operator SIM Only deals from £4.99
1 month
Combi SIM / Mini / Standard for phones
Combi SIM
1GB
3GInternet
  • TPO: 10% of your bill goes to a charity of your choice
£4.99
The People's Operator logo
Buy NowMore Info...
The People's Operator SIM Only deals from £4.99
1 month
Combi SIM / Mini / Standard for phones
Combi SIM
250 250 250MB
3GInternet
  • TPO: 10% of your bill goes to a charity of your choice
£4.99
The People's Operator logo
Buy NowMore Info...
Three SIM Only
1 month
Micro SIM for phones
Micro SIM
250MB
4GInternet
  • Three Feel at Home
  • Free WiFi on the London Underground
£5.00
Three / 3
Buy NowMore Info...
giffgaff SIM Only deals from £5
1 month
Micro SIM for phones
Micro SIM
60 300 20MB
3GInternet
  • Free calls to 0800 and 0500 numbers
  • Free to same network calls and texts
  • Free minute for every minute you are called
£5.00
Giffgaff logo
Buy NowMore Info...
Virgin SIM Only
1 month
Micro SIM for phones
Micro SIM
250 Unlimited 250MB
3GInternet
  • BlackBerry Services
£5.00
Buy NowMore Info...
Virgin SIM Only
12 months
Micro SIM for phones
Micro SIM
250 Unlimited 250MB
3GInternet
  • BlackBerry Services
£5.00
Buy NowMore Info...
Three SIM Only
1 month
Nano SIM for phones
Nano SIM
250MB
4GInternet
  • Three Feel at Home
  • Free WiFi on the London Underground
£5.00
Three / 3
Buy NowMore Info...
giffgaff SIM Only deals from £5
1 month
Nano SIM for phones
Nano SIM
60 300 20MB
3GInternet
  • Free calls to 0800 and 0500 numbers
  • Free to same network calls and texts
  • Free minute for every minute you are called
£5.00
Giffgaff logo
Buy NowMore Info...
TalkTalk Mobile
1 month
Nano SIM for phones
Nano SIM
100 250 200MB
3GInternet
  • TalkTalk Mobile Family Calls
£5.00
TalkTalk Mobile SIM only deals
Buy NowMore Info...
Three SIM Only
1 month
Standard SIM / Mini SIM for phones
Standard SIM
250MB
4GInternet
  • Three Feel at Home
  • Free WiFi on the London Underground
£5.00
Three / 3
Buy NowMore Info...
giffgaff SIM Only deals from £5
1 month
Standard SIM / Mini SIM for phones
Standard SIM
60 300 20MB
3GInternet
  • Free calls to 0800 and 0500 numbers
  • Free to same network calls and texts
  • Free minute for every minute you are called
£5.00
Giffgaff logo
Buy NowMore Info...
Virgin SIM Only
1 month
Standard SIM / Mini SIM for phones
Standard SIM
250 Unlimited 250MB
3GInternet
  • BlackBerry Services
£5.00
Buy NowMore Info...
Virgin SIM Only
12 months
Standard SIM / Mini SIM for phones
Standard SIM
250 Unlimited 250MB
3GInternet
  • BlackBerry Services
£5.00
Buy NowMore Info...
TalkTalk Mobile
1 month
Combi SIM / Mini / Standard for phones
Combi SIM
100 250 200MB
3GInternet
  • TalkTalk Mobile Family Calls
£5.00
TalkTalk Mobile SIM only deals
Buy NowMore Info...
Tesco SIM Only
1 month
Micro SIM for phones
Micro SIM
250 5,000
  • Tesco Mobile: Clubcard Points
£7.50
Tesco Mobile Direct
Buy NowMore Info...
Tesco SIM Only
12 months
Micro SIM for phones
Micro SIM
250 5,000 500MB
3GInternet
  • Tesco Mobile: Clubcard Points
£7.50
Tesco Mobile Direct
Buy NowMore Info...
Tesco SIM Only
12 months
Micro SIM for phones
Micro SIM
500 5,000
  • Tesco Mobile: Clubcard Points
£7.50
Tesco Mobile Direct
Buy NowMore Info...