Best no mid-contract price rise SIM-only deals

Short answer: the cheapest is Mozillion 1GB at £3.00 a month true cost (£72.00 over 24 months).

Cheapest: Mozillion £3.00/mo true cost72 dealsMedian £/GB: £0.23 (all deals we check: £0.24)Cheapest 24-mo total: £72.00
NetworkDataContractTrue monthly cost£/GBAction
Mozillion1GB24 months£3.00
£72.00 total		£3.00Get dealAd
Mozillion1GB12 months£3.50
£42.00 total		£3.50Get dealAd
Mozillion1GB30-day£3.95
£47.40 total		£3.95Get dealAd
Mozillion3GB24 months£3.95
£94.80 total		£1.32Get dealAd
Mozillion3GB12 months£4.50
£54.00 total		£1.50Get dealAd
Spusu5GB30-day£4.90
£58.80 total		£0.98Get dealAd
Mozillion3GB30-day£4.95
£59.40 total		£1.65Get dealAd
Lebara
on Vodafone		5GB30-day£5.00
£60.00 total		£1.00Get dealAd
Mozillion10GB24 months£5.00
£120.00 total		£0.50Get dealAd
Mozillion10GB12 months£5.50
£66.00 total		£0.55Get dealAd
Mozillion10GB30-day£5.90
£70.80 total		£0.59Get dealAd
Talkmobile
on Vodafone		10GB30-day£5.95
£71.40 total		£0.60Get dealAd
Smarty
on Three		5GB30-day£6.00
£72.00 total		£1.20Get dealAd
Spusu15GB30-day£6.90
£82.80 total		£0.46Get dealAd
Talkmobile
on Vodafone		30GB30-day£6.95
£83.40 total		£0.23Get dealAd
Mozillion30GB24 months£7.00
£168.00 total		£0.23Get dealAd
Mozillion30GB12 months£7.50
£90.00 total		£0.25Get dealAd
Mozillion30GB30-day£7.90
£94.80 total		£0.26Get dealAd
Talkmobile
on Vodafone		60GB30-day£7.95
£95.40 total		£0.13Get dealAd
Ecotalk
on EE		3GB30-day£8.00
£96.00 total		£2.67Get dealAd
Smarty
on Three		16GB30-day£8.00
£96.00 total		£0.50Get dealAd
Talkmobile
on Vodafone		100GB12 months£8.71
£104.49 total		£0.09Get dealAd
Spusu20GB30-day£8.90
£106.80 total		£0.45Get dealAd
Talkmobile
on Vodafone		80GB30-day£8.95
£107.40 total		£0.11Get dealAd
Mozillion80GB24 months£9.00
£216.00 total		£0.11Get dealAd
Smarty
on Three		20GB30-day£9.00
£108.00 total		£0.45Get dealAd
Mozillion80GB12 months£9.50
£114.00 total		£0.12Get dealAd
Mozillion80GB30-day£9.90
£118.80 total		£0.12Get dealAd
Spusu40GB30-day£9.90
£118.80 total		£0.25Get dealAd
Talkmobile
on Vodafone		100GB30-day£9.95
£119.40 total		£0.10Get dealAd
Lebara
on Vodafone		30GB30-day£10.00
£120.00 total		£0.33Get dealAd
VOXI20GB30-day£10.00
£120.00 total		£0.50Get dealAd
Smarty
on Three		40GB30-day£10.00
£120.00 total		£0.25Get dealAd
Talkmobile
on Vodafone		150GB12 months£10.46
£125.46 total		£0.07Get dealAd
Mozillion100GB24 months£11.00
£264.00 total		£0.11Get dealAd
Mozillion100GB12 months£11.50
£138.00 total		£0.12Get dealAd
Talkmobile
on Vodafone		150GB30-day£11.95
£143.40 total		£0.08Get dealAd
Ecotalk
on EE		10GB30-day£12.00
£144.00 total		£1.20Get dealAd
Mozillion100GB30-day£12.00
£144.00 total		£0.12Get dealAd
VOXI25GB30-day£12.00
£144.00 total		£0.48Get dealAd
Smarty
on Three		100GB30-day£12.00
£144.00 total		£0.12Get dealAd
Spusu70GB30-day£12.90
£154.80 total		£0.18Get 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
Mozillion150GB24 months£14.00
£336.00 total		£0.09Get dealAd
Mozillion150GB12 months£14.50
£174.00 total		£0.10Get dealAd
Lebara
on Vodafone		50GB30-day£15.00
£180.00 total		£0.30Get dealAd
Mozillion210GB24 months£15.00
£360.00 total		£0.07Get dealAd
Mozillion150GB30-day£15.00
£180.00 total		£0.10Get dealAd
VOXI35GB30-day£15.00
£180.00 total		£0.43Get dealAd
Smarty
on Three		150GB30-day£15.00
£180.00 total		£0.10Get dealAd
Mozillion210GB12 months£15.50
£186.00 total		£0.07Get dealAd
Mozillion260GB24 months£16.00
£384.00 total		£0.06Get dealAd
Mozillion210GB30-day£16.00
£192.00 total		£0.08Get dealAd
Mozillion260GB12 months£16.50
£198.00 total		£0.06Get dealAd
Mozillion260GB30-day£17.00
£204.00 total		£0.07Get dealAd
Smarty
on Three		200GB30-day£17.00
£204.00 total		£0.09Get dealAd
Honest Mobile10GB30-day£17.50
£210.00 total		£1.75Get dealAd
Ecotalk
on EE		100GB30-day£18.00
£216.00 total		£0.18Get dealAd
Mozillion310GB24 months£19.00
£456.00 total		£0.06Get dealAd
Mozillion310GB12 months£19.50
£234.00 total		£0.06Get dealAd
Lebara
on Vodafone		100GB30-day£20.00
£240.00 total		£0.20Get dealAd
Mozillion310GB30-day£20.00
£240.00 total		£0.06Get dealAd
VOXI100GB30-day£20.00
£240.00 total		£0.20Get dealAd
Smarty
on Three		Unlimited30-day£20.00
£240.00 total		—Get dealAd
MozillionUnlimited24 months£22.00
£528.00 total		—Get dealAd
MozillionUnlimited12 months£22.50
£270.00 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
VOXIUnlimited30-day£35.00
£420.00 total		—Get dealAd
Prices checked “Cheapest” = lowest true monthly cost of the 72 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

Black Friday news: iD Mobile's half-price SIMs and what they really cost (checked 11 November 2026, no April rises).

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