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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208 deals match your filters. Prices last checked 29 October 2026.

3Three
Three SIM Only Deals
SIM only
Sold by Fonehouse
Data12GB
MinutesUnlimited
TextsUnlimited
Term12 mths
£20 Automatic Cashback
SIM only12 months
£9.00/mo
£9.00 × 12£108
See deal at Fonehouse
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 108GB (1 Month contract) with Unli…
SIM only
Data108GB
MinutesUnlimited
TextsUnlimited
TermRolling
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM onlyRolling
£9.00/mo
No contract — leave any month.
See deal at iD Mobile
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 120GB (12 Month contract) with Unl…
SIM only
Data120GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM only12 months
£9.00/mo
£9.00 × 12£108
See deal at iD Mobile
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 63GB (12 Month contract) with Unli…
SIM only
Data63GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM only12 months
£9.00/mo
£9.00 × 12£108
See deal at iD Mobile
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 36GB (12 Month contract) with Unli…
SIM only
Data36GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM only12 months
£9.00/mo
£9.00 × 12£108
See deal at iD Mobile
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 54GB (12 Month contract) with Unli…
SIM only
Data54GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM only12 months
£9.00/mo
£9.00 × 12£108
See deal at iD Mobile
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 63GB (12 Month contract) with Unli…
SIM only
Data63GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM only12 months
£9.00/mo
£9.00 × 12£108
See deal at iD Mobile
LeLebara
Runs on Vodafone
12 Month Plan 30GB
SIM only
Data30GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G
SIM only12 months
£9.00/mo
£9.00 × 12£117
See deal at Lebara
1p1pMobile
Runs on EE
50GB prepay/PAYG SIM
Pay as you go
Data50GB
MinutesUnlimited
TextsUnlimited
TermRolling

30-day bundle, no contract

Pay as you goRolling
£10.00/mo
30-day bundle, top up when you choose.
See deal at 1pMobile
3Three
Three SIM Only Deals
SIM only
Sold by Fonehouse
Data12GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£50 Automatic Cashback
SIM only24 months
£10.00/mo
£10.00 × 24£240
See deal at Fonehouse
3Three
Three SIM Only Deals
SIM only
Sold by Fonehouse
Data30GB
MinutesUnlimited
TextsUnlimited
Term12 mths
SIM only12 months
£10.00/mo
£10.00 × 12£120
See deal at Fonehouse
VXVOXI
Runs on Vodafone
VOXI SIM Only Deals
SIM only
Sold by Fonehouse
Data60GB
MinutesUnlimited
TextsUnlimited
TermRolling
SIM onlyRolling
£10.00/mo
No contract — leave any month.
See deal at Fonehouse
VFVodafone
Vodafone SIM Only Deals
SIM only
Sold by Fonehouse
Data70GB
MinutesUnlimited
TextsUnlimited
Term12 mths
£10 Automatic Cashback
SIM only12 months
£10.00/mo
£10.00 × 12£120
See deal at Fonehouse
ChChattr
Runs on O2
Chattr 6GB
SIM only
Data6GB
MinutesUnlimited
TextsUnlimited
TermRolling
5G No credit check No price hikes EU roaming O2 Priority

No contract — cancel when you want

SIM onlyRolling
£10.00/mo
No contract — leave any month.
See deal at Chattr
O2O2
O2 SIM Only on Classic (12 Month contract) with Unlimited m…
SIM only
Data80GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Charge to mobile 5G-ready No speed caps Wi-Fi Calling
SIM only12 months
£10.00/mo
£10.00 × 12£120
See deal at O2
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 110GB (1 Month contract) with Unli…
SIM only
Data110GB
MinutesUnlimited
TextsUnlimited
TermRolling
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM onlyRolling
£10.00/mo
No contract — leave any month.
See deal at iD Mobile
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 100GB (12 Month contract) with Unl…
SIM only
Data100GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM only12 months
£10.00/mo
£10.00 × 12£120
See deal at iD Mobile
O2O2
O2 SIM Only on Classic (1 Month contract) with Unlimited mi…
SIM only
Data80GB
MinutesUnlimited
TextsUnlimited
TermRolling
5G Charge to mobile 5G-ready No speed caps Wi-Fi Calling
SIM onlyRolling
£10.00/mo
No contract — leave any month.
See deal at O2
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 100GB (1 Month contract) with Unli…
SIM only
Data100GB
MinutesUnlimited
TextsUnlimited
TermRolling
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM onlyRolling
£10.00/mo
No contract — leave any month.
See deal at iD Mobile
iDiD Mobile
Runs on Three
iD Mobile SIM Only on 5G 100GB (24 Month contract) with Unl…
SIM only
Data100GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Capped Contracts Data Rollover Free EU Roaming 14-day return policy for online purchases
SIM only24 months
£10.00/mo
£10.00 × 24£240
See deal at iD Mobile