Recommendations
SIM Only Recommendations
SIMO deals for December 2020
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.
It is worth noting that around 50% of UK mobile consumers use up to 5GB data a month. and call and text usage is actually falling. For around £10 you can easily cover these requirements. Consider your own mobile phone use before you buy; it's not worth paying extra for allowances you won't use.
SIM deals under £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 all the big mobile networks Three are pretty active, and there is plenty on offer from the smaller Mobile Virtual Network Operators like giffgaff and Tesco Mobile, who both use O2’s network, or Virgin Mobile on EE.
 | 1GB 12 month Three SIM Only 12 month Three SIMO | 1GB data | Unlimited texts and calls | £5.00 | See Deal |
 | 3GB 12 month Virgin Mobile SIM Only 12 month Virgin Mobile SIMO | 3GB data | Unlimited texts and calls | £6.00 | See Deal |
| 3GB 12 month Vodafone SIM Only 12 month Vodafone SIMO | 3GB data | Unlimited texts and calls | £6.00 | See Deal |
 | 2GB 12 month Vodafone SIM Only 12 month Vodafone SIMO | 2GB data | Unlimited texts and calls | £6.00 | See Deal |
| 2GB 12 month Sky Mobile SIM Only 12 month Sky Mobile SIMO | 2GB data | Unlimited texts and calls | £6.00 | See Deal |
 | Smarty PAYGO with 30GB data bundle Smarty PAYGO SIM with 30GB bundle | 30GB data | Unlimited texts and calls | £10.00 | See Deal |
 | Voxi PAYGO with 12GB data bundle Voxi PAYGO SIM with 12GB bundle | 12GB data | Unlimited texts and calls | £10.00 | See Deal |
 | Smarty PAYGO with 10GB data bundle Smarty PAYGO SIM with 10GB bundle | 10GB data | Unlimited texts and calls | £9.00 | See Deal |
| Lebara Mobile PAYGO with 10GB data bundle Lebara Mobile PAYGO SIM with 10GB bundle | 10GB data | Unlimited texts and calls | £15.00 | See Deal |
 | giffgaff PAYGO with 9GB data bundle giffgaff PAYGO SIM with 9GB bundle | 9GB data | Unlimited texts and calls | £10.00 | See Deal |
SIM deals from £10
You can get some surprisingly good value deals for around £10 from some of the bigger networks.
 | 4GB 12 month Three SIM Only 12 month Three SIMO | 4GB data | Unlimited texts and calls | £6.00 | See Deal |
| 2GB 12 month BT SIM Only 12 month BT SIMO | 2GB data | Unlimited texts and calls | £7.00 | See Deal |
| 1GB 12 month BT SIM Only 12 month BT SIMO | 1GB data | Unlimited texts and calls | £7.00 | See Deal |
| 10GB 12 month O2 SIM Only 12 month O2 SIMO | 10GB data | Unlimited texts and calls | £8.00 | See Deal |
| 12GB 12 month BT SIM Only 12 month BT SIMO | 12GB data | Unlimited texts and calls | £9.00 | See Deal |
 | Smarty PAYGO with Unlimited data bundle Smarty PAYGO SIM with Unlimited bundle | Unlimited texts, minutes and data | £18.00 | See Deal |
 | Smarty PAYGO with 100GB data bundle Smarty PAYGO SIM with 100GB bundle | 100GB data | Unlimited texts and calls | £17.00 | See Deal |
 | giffgaff PAYGO with 80GB data bundle giffgaff PAYGO SIM with 80GB bundle | 80GB data | Unlimited texts and calls | £20.00 | See Deal |
 | Smarty PAYGO with 50GB data bundle Smarty PAYGO SIM with 50GB bundle | 50GB data | Unlimited texts and calls | £12.00 | See Deal |
| EE PAYGO with 50GB data bundle EE PAYGO SIM with 50GB bundle | 50GB data | Unlimited texts and calls | £20.00 | See Deal |
SIM deals from £20
Over £20
 | 60GB 12 month BT SIM Only 12 month BT SIMO | 60GB data | Unlimited texts and calls | £15.00 | See Deal |
| 30GB 12 month BT SIM Only 12 month BT SIMO | 30GB data | Unlimited texts and calls | £15.00 | See Deal |
| 50GB 12 month Virgin Mobile SIM Only 12 month Virgin Mobile SIMO | 50GB data | Unlimited texts and calls | £16.00 | See Deal |
| Unlimited 12 month Three SIM Only 12 month Three SIMO | Unlimited texts, minutes and data | £14.67 | See Deal |
 | 20GB 12 month EE SIM Only 12 month EE SIMO | 20GB data | Unlimited texts and calls | £17.83 | See Deal |
| giffgaff PAYGO with Unlimited data bundle giffgaff PAYGO SIM with Unlimited bundle | Unlimited texts, minutes and data | £25.00 | See Deal |
| Voxi PAYGO with Unlimited data bundle Voxi PAYGO SIM with Unlimited bundle | Unlimited texts, minutes and data | £30.00 | See Deal |
| O2 PAYGO with 100GB data bundle O2 PAYGO SIM with 100GB bundle | 100GB data | Unlimited texts and calls | £30.00 | See Deal |
| EE PAYGO with 100GB data bundle EE PAYGO SIM with 100GB bundle | 100GB data | Unlimited texts and calls | £30.00 | See Deal |
| EE PAYGO with 60GB data bundle EE PAYGO SIM with 60GB bundle | 60GB data | Unlimited texts | 3000 minutes | £30.00 | See Deal |
Why show 12 month deals first?
We show 12 month deals by default because they generally present the best value for money. We do revisit this every now and again to make sure it is still true.
WhatSIM fairness promise
The prices on this page are sorted by Featured Deals and Price.
Featured deals are determined based on the price divided by the amount of data included in the tariff.