Here are the top 5 SIM only deals for May, with a minimum of 8GB of data, sorted by cheapest price per month:
1st. iD Mobile has SIM only deal with rolling 1-month contract that has 10GB of data, unlimited calls, unlimited texts, 5G and costs only £7 per month. To help compare prices, this is equal to £0.70 per GB.
2nd. Smarty has a SIM only deal with rolling 1-month contract that has 8GB of data, unlimited calls, unlimited texts, 5G and costs only £7 per month. To help compare prices, this is equal to £0.88 per GB.
3rd. TalkTalk has a SIM only deal with rolling 1-month contract that has 15GB of data, unlimited calls, unlimited texts, 5G and costs only £8 per month. To help compare prices, this is equal to £0.53 per GB.
4th. iD Mobile has another SIM only deal with rolling 1-month contract that has 20GB of data, unlimited calls, unlimited texts, 5G, and costs only £8 per month. To help compare prices, this is equal to £0.40 per GB.
5th. Smarty has a SIM only deal with following 1-month contract that has 12GB of data, unlimited calls, unlimited texts, 5G, and costs only £8 per month. To help compare prices, this is equal to £0.67 per GB.
Summary
For SIM deals with a minimum of 8GB of data, iD Mobile is the cheapest at £7 per month. However, in terms of the cost per GB of data, TalkTalk is the best value for money with its 15GB of data for £8 per month which is equal to £0.53p per GB.
We created this list by researching hundreds of SIM only deals. Then, we filtered them for those with a minimum of 8GB of data, and sorted by the cheapest price per month.
Cheaper SIM only plans are available with less data. We choose not to include these because despite the lower monthly fee, the price per GB of data you receive goes up a lot. It's a bit like when you compare prices per gram in the supermarket to determine what's the best value.
If you would prefer to see simply the cheapest SIM only deals, or SIM deals with bigger data, we've included them in our money-saving guide: www.latestdeals.co.uk/guides/household-bills/best-sim-only-deals
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