Ranked by true cost

SIM only & pay as you go

Already got a handset you are happy with? A SIM-only plan is almost always cheaper. Rolling 30-day plans and pay-as-you-go bundles let you leave whenever you like.

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28 deals match your filters. Prices last checked 4 November 2026.

ChChattr
Runs on O2
Freedom One
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
TermRolling
Unlimited data 5G No credit check No price hikes EU roaming O2 Priority

£15/mo for months 1–5, £14/mo for months 6–11, then £13/mo from month 12

SIM onlyRolling
£15.00/mo
No contract — leave any month.
See deal at Chattr
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G Unlimited (1 Month contract) with …
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
TermRolling
Unlimited data 5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM onlyRolling
£15.00/mo
No contract — leave any month.
See deal at iD Mobile
3Three
Three SIM Only Deals
SIM only
Sold by Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term12 mths
Unlimited data £55 Automatic Cashback
SIM only12 months
£17.00/mo
£17.00 × 12£204
See deal at Fonehouse
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G Unlimited (24 Month contract) with…
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM only24 months
£17.00/mo
£17.00 × 24£408
See deal at iD Mobile
O2O2
O2 SIM Only on Classic (24 Month contract) with Unlimited m…
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G 3 months Free Disney+ O2 Priority Charge to mobile Recommend a Friend and Earn Rewards
SIM only24 months
£23.00/mo
£23.00 × 24£552
See deal at O2
O2O2
O2 SIM Only on Classic Unlimited (24 Month contract) with 1…
SIM only
DataUnlimited
MinutesUnlimited
Texts100
Term24 mths
Unlimited data 5G O2 Priority Charge to mobile Recommend a Friend and Earn Rewards 5G-ready
SIM only24 months
£23.00/mo
£23.00 × 24£552
See deal at O2
LeLebara
Runs on Vodafone
12 Month Plan Unlimited 1
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term12 mths
Unlimited data 5G
SIM only12 months
£22.50/mo
£22.50 × 12£292.50
See deal at Lebara
1p1pMobile
Runs on EE
Unlimited prepay/PAYG SIM
Pay as you go
DataUnlimited
Minutes0
TextsUnlimited
TermRolling
Unlimited data

30-day bundle, no contract

Pay as you goRolling
£25.00/mo
30-day bundle, top up when you choose.
See deal at 1pMobile
1p1pMobile
Runs on EE
Family Unlimited prepay/PAYG SIM
Pay as you go
DataUnlimited
Minutes0
TextsUnlimited
TermRolling
Unlimited data

30-day bundle, no contract

Pay as you goRolling
£25.00/mo
30-day bundle, top up when you choose.
See deal at 1pMobile
LeLebara
Runs on Vodafone
12 Month Plan Unlimited 2
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term12 mths
Unlimited data 5G
SIM only12 months
£27.00/mo
£27.00 × 12£351
See deal at Lebara
O2O2
O2 SIM Only on Ultimate Unlimited (24 Month contract) with …
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G O2 Priority Charge to mobile Recommend a Friend and Earn Rewards Data Rollover
SIM only24 months
£29.99/mo
£29.99 × 24£719.76
See deal at O2
O2O2
O2 SIM Only on Ultimate Unlimited (24 Month contract) with …
SIM only
DataUnlimited
MinutesUnlimited
Texts100
Term24 mths
Unlimited data 5G O2 Priority Charge to mobile Recommend a Friend and Earn Rewards Data Rollover
SIM only24 months
£29.99/mo
£29.99 × 24£719.76
See deal at O2
O2O2
O2 SIM Only on Plus Unlimited (24 Month contract) with Unli…
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G 6 months Free Disney+ O2 Priority Charge to mobile Recommend a Friend and Earn Rewards
SIM only24 months
£33.99/mo
£33.99 × 24£815.76
See deal at O2
O2O2
O2 SIM Only on Plus Unlimited (24 Month contract) with 100 …
SIM only
DataUnlimited
MinutesUnlimited
Texts100
Term24 mths
Unlimited data 5G 6 months Free Disney+ O2 Priority Charge to mobile Recommend a Friend and Earn Rewards
SIM only24 months
£33.99/mo
£33.99 × 24£815.76
See deal at O2
O2O2
O2 SIM Only on Classic (12 Month contract) with Unlimited m…
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term12 mths
Unlimited data 5G 3 months Free Disney+ O2 Priority Charge to mobile Recommend a Friend and Earn Rewards
SIM only12 months
£35.00/mo
£35.00 × 12£420
See deal at O2
O2O2
O2 SIM Only on Classic Unlimited (12 Month contract) with 1…
SIM only
DataUnlimited
MinutesUnlimited
Texts100
Term12 mths
Unlimited data 5G O2 Priority Charge to mobile Recommend a Friend and Earn Rewards 5G-ready
SIM only12 months
£35.00/mo
£35.00 × 12£420
See deal at O2
VXVOXI
Runs on Vodafone
VOXI SIM Only Deals
SIM only
Sold by Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
TermRolling
Unlimited data
SIM onlyRolling
£35.00/mo
No contract — leave any month.
See deal at Fonehouse
O2O2
O2 SIM Only on Plus Unlimited (12 Month contract) with Unli…
SIM only
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term12 mths
Unlimited data 5G 6 months Free Disney+ O2 Priority Charge to mobile Recommend a Friend and Earn Rewards
SIM only12 months
£36.99/mo
£36.99 × 12£443.88
See deal at O2
O2O2
O2 SIM Only on Plus Unlimited (12 Month contract) with 100 …
SIM only
DataUnlimited
MinutesUnlimited
Texts100
Term12 mths
Unlimited data 5G 6 months Free Disney+ O2 Priority Charge to mobile Recommend a Friend and Earn Rewards
SIM only12 months
£36.99/mo
£36.99 × 12£443.88
See deal at O2
O2O2
O2 SIM Only on Mini Unlimited (1 Month contract) with 100 t…
SIM only
DataUnlimited
MinutesUnlimited
Texts100
TermRolling
Unlimited data 5G O2 Priority Charge to mobile Recommend a Friend and Earn Rewards 5G-ready
SIM onlyRolling
£38.00/mo
No contract — leave any month.
See deal at O2