Mobile · Deals checked today
30-day SIM-only deals: no long contract
The best-value 30-day SIM we found on 25 Oct 2026 is Lyca Mobile UK Plan Smart at a real cost of £3.50 a month (5GB data · EE network · No contract). The table ranks 60 deals from 14 providers by real cost, with fees and stated price rises included.
Best-value 30-dayAffiliate
Lyca Mobile UK Plan Smart
5GB data · EE network · No contract · £3.50 a month real cost
The lowest real cost here from a national provider on 25 Oct 2026, with fees and stated price rises counted.
The deals, best value first
Checked 25 Oct 2026| Provider and package | Data | Contract | Monthly price | Real cost | Deal |
|---|---|---|---|---|---|
Lyca Mobile UK Plan Smart Pay as you go bundle, no credit check · 100 international minutes included | Data5GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£3.50Price may change | Real cost£3.50 /mo£42.00 over 12 months | See deal at Lyca Mobile (opens in a new tab) |
spusu spusu 5 Unlimited minutes · Free number transfer | Data5GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£4.90Price may change | Real cost£4.90 /mo£58.80 over 12 months | See deal at spusu (opens in a new tab) |
Lyca Mobile National Plus Pay as you go bundle, no credit check · 100 international minutes included | Data30GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£5.00Price may change | Real cost£5.00 /mo£60.00 over 12 months | See deal at Lyca Mobile (opens in a new tab) |
Lebara 5GB 30-day plan No annual price rises · No credit check | Data5GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£5.00Price locked | Real cost£5.00 /mo£60.00 over 12 months | See deal at Lebara (opens in a new tab) |
1pMobile 5GB 30-day plan 5G included, no speed caps | Data5GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£5.00Price may change | Real cost£5.00 /mo£60.00 over 12 months | See deal at 1pMobile (opens in a new tab) |
Asda Mobile 3GB | Data3GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£5.00Price may change | Real cost£5.00 /mo£60.00 over 12 months | See deal at Asda Mobile (opens in a new tab) |
Talkmobile 10GB 30 days | Data10GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£5.95Price may change | Real cost£5.95 /mo£71.40 over 12 months | See deal at Talkmobile (opens in a new tab) |
iD Mobile 15GB 1 month plan No annual price rises · Roam in 50 destinations | Data15GBThree network · 5G | ContractNo contractEU roaming included | Monthly price£6.00Price locked | Real cost£6.00 /mo£72.00 over 12 months | See deal at iD Mobile (opens in a new tab) |
Smarty 5GB rolling monthly Wi-Fi calling · No annual price rises | Data5GBThree network · 5G | ContractNo contractEU roaming included | Monthly price£6.00Price locked | Real cost£6.00 /mo£72.00 over 12 months | See deal at Smarty (opens in a new tab) |
Talkmobile 30GB 30 days | Data30GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£6.95Price may change | Real cost£6.95 /mo£83.40 over 12 months | See deal at Talkmobile (opens in a new tab) |
Lyca Mobile UK Plan Super Extra Pay as you go bundle, no credit check · 100 international minutes included | Data75GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£7.50Price may change | Real cost£7.50 /mo£90.00 over 12 months | See deal at Lyca Mobile (opens in a new tab) |
spusu spusu 20 Unlimited minutes · Free number transfer | Data20GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£7.90Price may change | Real cost£7.90 /mo£94.80 over 12 months | See deal at spusu (opens in a new tab) |
Talkmobile 60GB 30 days | Data60GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£7.95Price may change | Real cost£7.95 /mo£95.40 over 12 months | See deal at Talkmobile (opens in a new tab) |
iD Mobile 36GB 1 month plan No annual price rises · Roam in 50 destinations | Data36GBThree network · 5G | ContractNo contractEU roaming included | Monthly price£8.00Price locked | Real cost£8.00 /mo£96.00 over 12 months | See deal at iD Mobile (opens in a new tab) |
Smarty 32GB rolling monthly (special offer) Wi-Fi calling · No annual price rises | Data32GBThree network · 5G | ContractNo contractEU roaming included | Monthly price£8.00Price locked | Real cost£8.00 /mo£96.00 over 12 months | See deal at Smarty (opens in a new tab) |
Asda Mobile 10GB | Data10GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£8.00Price may change | Real cost£8.00 /mo£96.00 over 12 months | See deal at Asda Mobile (opens in a new tab) |
giffgaff 5GB monthly rolling No credit checks | Data5GBO2 network · 5G | ContractNo contractEU roaming included | Monthly price£8.00Price may change | Real cost£8.00 /mo£96.00 over 12 months | See deal at giffgaff (opens in a new tab) |
Ecotalk 3GB No price rises · Ethical Consumer Best Buy | Data3GBEE network · 5G | ContractNo contractEU roaming extra | Monthly price£8.00Price locked | Real cost£8.00 /mo£96.00 over 12 months | See deal at Ecotalk (opens in a new tab) |
Your Co-op Mobile 3GB 30-day Change your data plan anytime · 30-day rolling contract, eSIM available | Data3GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£8.00Price may change | Real cost£8.00 /mo£96.00 over 12 months | See deal at Your Co-op Mobile (opens in a new tab) |
Talkmobile 100GB 30 days | Data100GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£9.95Price may change | Real cost£9.95 /mo£119.40 over 12 months | See deal at Talkmobile (opens in a new tab) |
Lyca Mobile UK Plan Mega Plus Pay as you go bundle, no credit check · 100 international minutes included | Data120GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£10.00Price may change | Real cost£10.00 /mo£120.00 over 12 months | See deal at Lyca Mobile (opens in a new tab) |
1pMobile 50GB 30-day plan 5G included, no speed caps | Data50GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£10.00Price may change | Real cost£10.00 /mo£120.00 over 12 months | See deal at 1pMobile (opens in a new tab) |
Smarty 40GB rolling monthly Wi-Fi calling · No annual price rises | Data40GBThree network · 5G | ContractNo contractEU roaming included | Monthly price£10.00Price locked | Real cost£10.00 /mo£120.00 over 12 months | See deal at Smarty (opens in a new tab) |
Lebara 30GB 30-day plan No annual price rises · No credit check | Data30GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£10.00Price locked | Real cost£10.00 /mo£120.00 over 12 months | See deal at Lebara (opens in a new tab) |
VOXI £10 plan Price locked: stays at the same monthly price · Unlimited data for 7 social media apps | Data20GBVodafone network · 5G | ContractNo contractEU roaming extra | Monthly price£10.00Price locked | Real cost£10.00 /mo£120.00 over 12 months | See deal at VOXI (opens in a new tab) |
giffgaff 20GB monthly rolling No credit checks | Data20GBO2 network · 5G | ContractNo contractEU roaming included | Monthly price£10.00Price may change | Real cost£10.00 /mo£120.00 over 12 months | See deal at giffgaff (opens in a new tab) |
Asda Mobile 15GB | Data15GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£10.00Price may change | Real cost£10.00 /mo£120.00 over 12 months | See deal at Asda Mobile (opens in a new tab) |
Your Co-op Mobile 10GB 30-day Change your data plan anytime · 30-day rolling contract, eSIM available | Data10GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£10.00Price may change | Real cost£10.00 /mo£120.00 over 12 months | See deal at Your Co-op Mobile (opens in a new tab) |
Talkmobile 150GB 30 days | Data150GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£11.95Price may change | Real cost£11.95 /mo£143.40 over 12 months | See deal at Talkmobile (opens in a new tab) |
Smarty 140GB rolling monthly (special offer) Wi-Fi calling · No annual price rises | Data140GBThree network · 5G | ContractNo contractEU roaming included | Monthly price£12.00Price locked | Real cost£12.00 /mo£144.00 over 12 months | See deal at Smarty (opens in a new tab) |
iD Mobile 100GB 1 month plan No annual price rises · Roam in 50 destinations | Data100GBThree network · 5G | ContractNo contractEU roaming included | Monthly price£12.00Price locked | Real cost£12.00 /mo£144.00 over 12 months | See deal at iD Mobile (opens in a new tab) |
VOXI £12 plan (3x data offer) Price locked: stays at the same monthly price · 3x data offer: 75GB instead of 25GB until 26 November 2026 | Data75GBVodafone network · 5G | ContractNo contractEU roaming extra | Monthly price£12.00Price locked | Real cost£12.00 /mo£144.00 over 12 months | See deal at VOXI (opens in a new tab) |
Ecotalk 10GB No price rises · Ethical Consumer Best Buy | Data10GBEE network · 5G | ContractNo contractEU roaming extra | Monthly price£12.00Price locked | Real cost£12.00 /mo£144.00 over 12 months | See deal at Ecotalk (opens in a new tab) |
Lyca Mobile UK Plan Unlimited Pay as you go bundle, no credit check · 100 international minutes included | DataUnlimitedEE network · 5G | ContractNo contractEU roaming included | Monthly price£12.50Price may change | Real cost£12.50 /mo£150.00 over 12 months | See deal at Lyca Mobile (opens in a new tab) |
Rewild Mobile 4GB 30-day 25% of net profits go to nature · Free eSIM, £4.99 for a physical SIM | Data4GBVodafone network | ContractNo contractEU roaming extra | Monthly price£12.50Price may change | Real cost£12.50 /mo£150.00 over 12 months | See deal at Rewild Mobile (opens in a new tab) |
spusu spusu 80 Unlimited minutes · Free number transfer | Data80GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£12.90Price may change | Real cost£12.90 /mo£154.80 over 12 months | See deal at spusu (opens in a new tab) |
Ecotalk 30GB No price rises · Ethical Consumer Best Buy | Data30GBEE network · 5G | ContractNo contractEU roaming extra | Monthly price£14.00Price locked | Real cost£14.00 /mo£168.00 over 12 months | See deal at Ecotalk (opens in a new tab) |
Your Co-op Mobile 30GB 30-day Change your data plan anytime · 30-day rolling contract, eSIM available | Data30GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£14.00Price may change | Real cost£14.00 /mo£168.00 over 12 months | See deal at Your Co-op Mobile (opens in a new tab) |
Chattr Freedom One Unlimited No credit checks · Price drops to £14 from month 6 and £13 from month 12 | DataUnlimitedO2 network · 5G | ContractNo contractEU roaming included | Monthly price£15.00£14.00 after 5 months, then £13.00 | Real cost£14.33 /mo£172.00 over 12 months | See deal at Chattr (opens in a new tab) |
1pMobile 100GB 30-day plan 5G included, no speed caps | Data100GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£15.00Price may change | Real cost£15.00 /mo£180.00 over 12 months | See deal at 1pMobile (opens in a new tab) |
Lebara 50GB 30-day plan No annual price rises · No credit check | Data50GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£15.00Price locked | Real cost£15.00 /mo£180.00 over 12 months | See deal at Lebara (opens in a new tab) |
VOXI £15 plan Price locked: stays at the same monthly price · Unlimited data for social media, music and video apps | Data35GBVodafone network · 5G | ContractNo contractEU roaming extra | Monthly price£15.00Price locked | Real cost£15.00 /mo£180.00 over 12 months | See deal at VOXI (opens in a new tab) |
Rewild Mobile 10GB 30-day 25% of net profits go to nature · Free eSIM, £4.99 for a physical SIM | Data10GBVodafone network | ContractNo contractEU roaming extra | Monthly price£16.50Price may change | Real cost£16.50 /mo£198.00 over 12 months | See deal at Rewild Mobile (opens in a new tab) |
Smarty 200GB rolling monthly Wi-Fi calling · No annual price rises | Data200GBThree network · 5G | ContractNo contractEU roaming included | Monthly price£17.00Price locked | Real cost£17.00 /mo£204.00 over 12 months | See deal at Smarty (opens in a new tab) |
Asda Mobile 100GB | Data100GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£18.00Price may change | Real cost£18.00 /mo£216.00 over 12 months | See deal at Asda Mobile (opens in a new tab) |
Your Co-op Mobile 100GB 30-day Change your data plan anytime · 30-day rolling contract, eSIM available | Data100GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£18.00Price may change | Real cost£18.00 /mo£216.00 over 12 months | See deal at Your Co-op Mobile (opens in a new tab) |
iD Mobile Unlimited 1 month plan No annual price rises · Roam in 50 destinations | DataUnlimitedThree network · 5G | ContractNo contractEU roaming included | Monthly price£20.00Price locked | Real cost£20.00 /mo£240.00 over 12 months | See deal at iD Mobile (opens in a new tab) |
Smarty Unlimited rolling monthly Wi-Fi calling · No annual price rises | DataUnlimitedThree network · 5G | ContractNo contractEU roaming included | Monthly price£20.00Price locked | Real cost£20.00 /mo£240.00 over 12 months | See deal at Smarty (opens in a new tab) |
VOXI £20 plan (3x data offer) Price locked: stays at the same monthly price · 3x data offer: 300GB instead of 100GB until 26 November 2026 | Data300GBVodafone network · 5G | ContractNo contractEU roaming extra | Monthly price£20.00Price locked | Real cost£20.00 /mo£240.00 over 12 months | See deal at VOXI (opens in a new tab) |
1pMobile 200GB 30-day plan 5G included, no speed caps | Data200GBEE network · 5G | ContractNo contractEU roaming included | Monthly price£20.00Price may change | Real cost£20.00 /mo£240.00 over 12 months | See deal at 1pMobile (opens in a new tab) |
Lebara 100GB 30-day plan No annual price rises · No credit check | Data100GBVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£20.00Price locked | Real cost£20.00 /mo£240.00 over 12 months | See deal at Lebara (opens in a new tab) |
giffgaff 100GB monthly rolling No credit checks | Data100GBO2 network · 5G | ContractNo contractEU roaming included | Monthly price£20.00Price may change | Real cost£20.00 /mo£240.00 over 12 months | See deal at giffgaff (opens in a new tab) |
Asda Mobile Unlimited data | DataUnlimitedVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£22.00Price may change | Real cost£22.00 /mo£264.00 over 12 months | See deal at Asda Mobile (opens in a new tab) |
Ecotalk Unlimited data No price rises · Ethical Consumer Best Buy | DataUnlimitedEE network · 5G | ContractNo contractEU roaming extra | Monthly price£22.00Price locked | Real cost£22.00 /mo£264.00 over 12 months | See deal at Ecotalk (opens in a new tab) |
Rewild Mobile Unlimited 30-day 25% of net profits go to nature · Free eSIM, £4.99 for a physical SIM | DataUnlimitedVodafone network | ContractNo contractEU roaming extra | Monthly price£22.50Price may change | Real cost£22.50 /mo£270.00 over 12 months | See deal at Rewild Mobile (opens in a new tab) |
Your Co-op Mobile Unlimited data 30-day Change your data plan anytime · 30-day rolling contract, eSIM available | DataUnlimitedEE network · 5G | ContractNo contractEU roaming included | Monthly price£24.00Price may change | Real cost£24.00 /mo£288.00 over 12 months | See deal at Your Co-op Mobile (opens in a new tab) |
Lebara Unlimited data 30-day plan No annual price rises · No credit check | DataUnlimitedVodafone network · 5G | ContractNo contractEU roaming included | Monthly price£25.00Price locked | Real cost£25.00 /mo£300.00 over 12 months | See deal at Lebara (opens in a new tab) |
1pMobile Unlimited data 30-day plan 5G included, no speed caps · Extra SIMs half price (£12.50) | DataUnlimitedEE network · 5G | ContractNo contractEU roaming included | Monthly price£25.00Price may change | Real cost£25.00 /mo£300.00 over 12 months | See deal at 1pMobile (opens in a new tab) |
VOXI Unlimited Price locked: stays at the same monthly price | DataUnlimitedVodafone network · 5G | ContractNo contractEU roaming extra | Monthly price£35.00Price locked | Real cost£35.00 /mo£420.00 over 12 months | See deal at VOXI (opens in a new tab) |
giffgaff Unlimited monthly rolling No credit checks | DataUnlimitedO2 network · 5G | ContractNo contractEU roaming included | Monthly price£35.00Price may change | Real cost£35.00 /mo£420.00 over 12 months | See deal at giffgaff (opens in a new tab) |
AffiliateRanked by real cost; commission never changes the order. How we make money. Prices checked on each provider's own site on 25 Oct 2026.
Why pick a 30-day SIM
A 30-day SIM lets you leave with a month's notice or less.
It rolls month to month, with no long contract to wait out. Each month, you can pick the data you need and move if your needs change.
The trade-off is cost. A 30-day SIM can cost more than a 12 or 24-month plan, which is cheaper up front but ties you in. If flexibility matters most to you, that extra cost may be worth it.
Ready to compare? Sort the table by real cost, then check the date of the last price check. Want longer deals too? See cheapest SIM-only deals.
How we compare rolling plans
We rank 30-day SIMs by real cost, cheapest first. Real cost is everything you pay over the contract, divided by the number of months.
We add up every monthly price, every price rise the provider has stated in pounds, and any setup or delivery fee. Then we take off the cash value of any reward card or bill credit. We compare every plan over the same 12 months, so the figures line up.
If two deals cost the same, the bigger data allowance goes first. Commission never changes the order. The ranking code does not read whether a provider pays us.
Every table shows the date its prices were last checked. Compare real cost first, then check the data allowance. Start with our cheapest SIM-only deals.
Switch and keep your number
To keep your number, text PAC to 65075 and give the code to your new network. Your number moves within one working day, so people can keep calling the same number.
Follow these steps:
- Text PAC to 65075 to get your code.
- Give the code to your new network.
- Wait one working day for your number to move.
Do not want to keep your number? Text STAC to 75075 to leave without it.
Straight answers
Questions people ask
- Are 30-day SIMs more expensive?
- Sometimes, yes. A 12 or 24-month plan is cheaper up front, but it ties you in. A 30-day SIM can cost more, but you can leave with a month's notice or less. Our tables rank rolling deals by real cost, cheapest first.
- Can I change my data on a 30-day SIM?
- Yes, you can change your data by moving to a different plan. A 30-day SIM rolls month to month, so you can leave with a month's notice or less. Then choose a new SIM with the data you need.
- How do I cancel a 30-day SIM?
- Give a month's notice or less, because a 30-day SIM rolls month to month. To leave and keep your number, text PAC to 65075 for your code and give it to your new network. To leave without keeping your number, text STAC to 75075. If you signed up online or by phone, you also have 14 days to cancel under the cooling-off period.