Best 30-day rolling SIM-only deals

Short answer: the cheapest is Mozillion 1GB at £2.80 a month true cost (£33.60 over 12 months).

NetworkDataContractTrue monthly cost£/GBAction
Mozillion1GB30-day£2.80
£33.60 total
£2.80Get dealAd
Mozillion3GB30-day£3.90
£46.80 total
£1.30Get dealAd
Lebara
on Vodafone
5GB30-day£5.00
£60.00 total
£1.00Get dealAd
Mozillion10GB30-day£5.90
£70.80 total
£0.59Get dealAd
Mozillion30GB30-day£7.90
£94.80 total
£0.26Get dealAd
Ecotalk
on EE
3GB30-day£8.00
£96.00 total
£2.67Get dealAd
Mozillion80GB30-day£9.90
£118.80 total
£0.12Get dealAd
Lebara
on Vodafone
30GB30-day£10.00
£120.00 total
£0.33Get dealAd
Ecotalk
on EE
10GB30-day£12.00
£144.00 total
£1.20Get dealAd
Mozillion100GB30-day£12.00
£144.00 total
£0.12Get dealAd
Honest Mobile4GB30-day£13.50
£162.00 total
£3.38Get dealAd
Ecotalk
on EE
30GB30-day£14.00
£168.00 total
£0.47Get dealAd
Lebara
on Vodafone
50GB30-day£15.00
£180.00 total
£0.30Get dealAd
Mozillion150GB30-day£15.00
£180.00 total
£0.10Get dealAd
Mozillion210GB30-day£16.00
£192.00 total
£0.08Get dealAd
Mozillion260GB30-day£17.00
£204.00 total
£0.07Get dealAd
Honest Mobile10GB30-day£17.50
£210.00 total
£1.75Get dealAd
Lebara
on Vodafone
100GB30-day£20.00
£240.00 total
£0.20Get dealAd
Mozillion310GB30-day£20.00
£240.00 total
£0.06Get dealAd
Ecotalk
on EE
Unlimited30-day£22.00
£264.00 total
—Get dealAd
MozillionUnlimited30-day£23.00
£276.00 total
—Get dealAd
Lebara
on Vodafone
Unlimited30-day£25.00
£300.00 total
—Get dealAd
Honest MobileUnlimited30-day£25.00
£300.00 total
—Get dealAd
Lebara
on Vodafone
Unlimited30-day£30.00
£360.00 total
—Get dealAd
Prices checked “Cheapest” = lowest true monthly cost of the 24 deals shown. Methodology

True monthly cost includes intro prices ending and any April price rises, shown in £/p as Ofcom requires. How we calculate true cost

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