30 day SIM only deals
No long contract, cancel anytime. Compare 30 day rolling SIM only deals.
Prices correct as of August 2026. We may earn commission when you click through — this never affects our rankings.
75 deals availableUpdated daily
Showing 20 of 75 deals
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LB
Lebara
4.8 (78000)
Uses Vodafone network
EU roamingInternational calls
Data
5GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£5.00/mo
✓ International minutes included✓ EU roaming included✓ No credit check
MZ
Mozillion
Uses multiple networks
Flexible plans
Data
3GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£5.00/mo
✓ Flexible plans✓ No long contracts
AM
Asda Mobile
3.7 (17000)
Uses Vodafone network
No contractNo price rise5G
Data
3GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£5.00/mo
✓ No contract✓ Free SIM✓ Rewards with Asda shopping
iD Mobile
4.3 (70000)
Uses Three network
No price riseData rollover5G
Data
25GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£6.00/mo
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
iD Mobile
4.3 (70000)
Uses Three network
No price riseData rollover5G
Data
10GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£6.00/mo
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
iD Mobile
4.3 (70000)
Uses Three network
No price riseData rollover5G
Data
8GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£6.00/mo
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
giffgaff
3.9 (30000)
Uses O2 network
No price riseEU roaming
Data
2GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£6.00/mo
✓ No contract✓ EU roaming included✓ Free SIM delivery
giffgaff
3.9 (30000)
Uses O2 network
No price riseEU roaming
Data
1GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£6.00/mo
✓ No contract✓ EU roaming included✓ Free SIM delivery
iD Mobile
4.3 (70000)
Uses Three network
No price riseData rollover5G
Data
50GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£7.00/mo
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
SM
Smarty
4.0 (48000)
Uses Three network
No price riseData refund
Data
35GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£7.00/mo
✓ No annual price rises✓ Unused data refunded✓ EU roaming included✓ No Credit Checks, Data Roaming
iD Mobile
4.3 (70000)
Uses Three network
No price riseData rollover5G
Data
20GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£7.00/mo
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
LB
Lebara
4.8 (78000)
Uses Vodafone network
EU roamingInternational calls
Data
15GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£7.00/mo
✓ International minutes included✓ EU roaming included✓ No credit check
MZ
Mozillion
Uses multiple networks
Flexible plans
Data
10GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£7.00/mo
✓ Flexible plans✓ No long contracts
O2
O2 network
O2 PriorityEU roaming
Data
1GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£7.00/mo
✓ O2 Priority rewards✓ EU roaming included✓ 5G at no extra cost
iD Mobile
4.3 (70000)
Uses Three network
No price riseData rollover5G
Data
80GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£8.00/mo
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
SM
Smarty
4.0 (48000)
Uses Three network
No price riseData refund
Data
75GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£8.00/mo
✓ No annual price rises✓ Unused data refunded✓ EU roaming included✓ No Credit Checks, Data Roaming
iD Mobile
4.3 (70000)
Uses Three network
No price riseData rollover5G
Data
40GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£8.00/mo
✓ Roll over unused data✓ No roaming charges in EU✓ No price rises mid-contract
LB
Lebara
4.8 (78000)
Uses Vodafone network
EU roamingInternational calls
Data
30GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£8.00/mo
✓ International minutes included✓ EU roaming included✓ No credit check
AM
Asda Mobile
3.7 (17000)
Uses Vodafone network
No contractNo price rise5G
Data
10GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£8.00/mo
✓ No contract✓ Free SIM✓ Rewards with Asda shopping
giffgaff
3.9 (30000)
Uses O2 network
No price riseEU roaming
Data
5GB
Calls
Unlimited
Texts
Unlimited
Contract
SIM only
£8.00/mo
✓ No contract✓ EU roaming included✓ Free SIM delivery