10GB SIM-only deals

A comfortable amount for everyday use — SIMs from 10GB to 20GB, cheapest first.
37 deals, cheapest first
Lycamobile
Lycamobile
Uses EE masts
12-month contract
10GB Data5G
Unlimited minutes & texts
No price riseseSIM availableWi-Fi calling included100 international mins
Important to know
  • ⚠EU roaming is included at no extra cost in most bundles, but not on every plan.
  • −Unused data does not roll over to the next month
£3.00/mo
for the first month
  • Then £6.00 a month after that
  • £69.00 total over 12 months
  • Average over 12 months: £5.75 a month
  • £0 upfront · no cashback required
Get this deal from Lycamobile*
Lycamobile
Lycamobile
Uses EE masts
24-month contract
12GB Data5G
Unlimited minutes & texts
No price riseseSIM availableWi-Fi calling included100 international mins
Important to know
  • ⚠EU roaming is included at no extra cost in most bundles, but not on every plan.
  • −Unused data does not roll over to the next month
£3.00/mo
for the first 3 months
  • Then £6.00 a month after that
  • £135.00 total over 24 months
  • Average over 24 months: £5.62 a month
  • £0 upfront · no cashback required
Get this deal from Lycamobile*
Vodafone
Vodafone
Uses Vodafone network
12-month contract
11GB Data5G
Unlimited minutes & texts
eSIM availableWi-Fi calling included
Important to know
  • ⚠EU roaming: Zone A roaming is included on all pay monthly plans, but wider European roaming needs a Plus or Premier plan…
£7.00/mo
until 31 March 2027
  • Then £9.50 a month from 1 April 2027
  • £94.00 total over 12 months
  • Average over 12 months: £7.83 a month
  • £0 upfront · no cashback required
Get this deal from buymobiles*
NOW Mobile
NOW Mobile
Uses EE masts
monthly rolling
10GB Data5G
Unlimited minutes & texts
No price risesWi-Fi calling included
Important to know
  • ⚠EU roaming: Some plans come with free EU roaming, but it is not stated as included on all plans.
  • −Unused data does not roll over to the next month
£7.50/mo
cancel or change any time
  • £0 upfront · no contract tying you to future price changes
Get this deal from NOW Mobile
Sky Mobile
Sky Mobile
Uses O2 masts
12-month contract
10GB Data5G
Unlimited minutes & texts
eSIM availableWi-Fi calling included
Important to know
  • ⚠Roaming Passport Plus costs £2 a day in 120 destinations; only the Republic of Ireland is free.
  • ⚠Sky Mobile raises prices each year during the contract
£8.00/mo
every month of the contract
  • £96.00 total over 12 months
  • £0 upfront · no cashback required
Get this deal from Sky Mobile
Ecotalk
Ecotalk
Uses EE masts
monthly rolling
10GB Data5G
Unlimited minutes & texts
No price riseseSIM availableWi-Fi calling included
Important to know
  • ⚠EU roaming: £2 per day
  • −Unused data does not roll over to the next month
£12.00/mo
cancel or change any time
  • £0 upfront · no contract tying you to future price changes
Get this deal from Ecotalk*
EE
EE
Uses EE network
monthly rolling
10GB Data5G
eSIM availableWi-Fi calling included
Important to know
  • ⚠EU roaming: A daily charge applies to use allowances in the EU/EEA on standard plans, while Essentials Plus, All Rounder…
  • −Unused data does not roll over to the next month
£15.00/mo
cancel or change any time
  • £0 upfront · no contract tying you to future price changes
Get this deal from EE
Honest Mobile
Honest Mobile
Uses VodafoneThree masts
monthly rolling
10GB Data5G
Unlimited minutes & texts
No price riseseSIM availableWi-Fi calling included
Important to know
  • ⚠EU roaming is free only for the first 5 days of each trip; the cache does not state costs beyond that.
  • −Unused data does not roll over to the next month
£17.50/mo
cancel or change any time
  • £0 upfront · no contract tying you to future price changes
Get this deal from Honest Mobile
Show 6 more deals — each beaten on price or data by one above
NOW Mobile
NOW Mobile
Uses EE masts
monthly rolling
15GB Data5G
Unlimited minutes & texts
No price risesWi-Fi calling included
Important to know
  • ⚠EU roaming: Some plans come with free EU roaming, but it is not stated as included on all plans.
  • −Unused data does not roll over to the next month
£10.00/mo
cancel or change any time
  • £0 upfront · no contract tying you to future price changes
Get this deal from NOW Mobile
Want to pay from your bank? See the rolling SIMs you can pay by Direct Debit →

Monthly prices are each provider’s current cost, checked against their site — last updated 8 August 2026. Links marked * earn us a commission if you buy — it never changes what you pay, and it plays no part in how we rank deals.