Independent phone advice · No sponsored rankings · UK coverage · Updated August 2026
Reviewed 6 August 2026Plan snapshots checked against Mobiles.co.uk. Offers and availability can change without notice.
Advertising disclosure: Mobiles.co.uk buttons are paid advertising links. We may earn a commission at no extra cost to you; this never affects our rankings. How we stay independent.
Plan snapshot checked against the Mobiles.co.uk SIM-only catalogue on 6 August 2026. Prices, doubled-data offers, cashback and stock can change.
Start with your usage
How much data do you need?
Buying the biggest allowance is not automatically good value. Look at your phone's mobile-data history before choosing.
1
Up to 10GB
Calls, messaging, maps and light browsing—mostly connected to Wi-Fi.
2
20–50GB
The sensible range for social media, music and occasional video.
3
100GB+
Frequent streaming, hotspot use or fewer dependable Wi-Fi connections.
4
Unlimited
Heavy streaming and tethering where you do not want to monitor usage.
Read the whole price
Three numbers to check
Headline monthly charge
What leaves your account each month before considering a promotion or price rise.
Effective cost after cashback
Useful for comparison, but only if you understand whether cashback is automatic or must be claimed.
Total contract cost
The clearest comparison once scheduled price increases and the full commitment are included.
Before you switch
Frequently asked questions
Do all shopping buttons go to Mobiles.co.uk?
Yes. Mobiles.co.uk is the only retailer linked by shopping buttons on this page. iD Mobile and Vodafone are the networks supplying the plans shown inside its catalogue.
Can I keep my mobile number?
Yes. Ask your current network for a PAC and give it to the new network during the switch. Do not cancel your old service before the number transfer completes.
Should I choose one month or 12 months?
Choose one month when flexibility matters. A longer agreement can unlock more data or cashback, but check price increases and the full contract cost.
Are these positions paid?
No. Mobiles.co.uk cannot pay to move an option up the shortlist. CompareAMobile may earn commission when a reader uses a shopping link, but this never changes our ordering or guidance.
Complete the setup
Pair it with the right phone
Best phones under £300
A low-cost handset plus SIM-only can beat an expensive bundled contract.