Light use
Calls, messaging, maps, email and occasional browsing. Start by checking whether a modest allowance covers your actual history.
Illustrative profileSIM-only comparison guide
Understand contract length, data, number transfers, eSIM compatibility and the questions to ask before choosing a SIM-only option.
Keep your handset
Separate the mobile service from the device
SIM-only can suit someone who already has a usable phone, but the cheapest-looking option is not always the best fit. Review flexibility, signal, data and price changes.
Minimum term and noticeCheck whether the plan is rolling or fixed for a set period.
Physical SIM or eSIMConfirm that your handset supports the required format.
Data use and hotspot termsCheck tethering, fair-use and speed-management conditions.
Illustrative only; pricing and allowances shown are not live offers.
Illustrative usage profiles
Estimate a range before comparing live plans
These are broad usage categories, not recommendations or available deals.
Everyday use
Regular apps, music, navigation and some video. Review at least three recent months rather than one unusually quiet month.
Illustrative profileHigh use
Frequent video, large uploads, hotspot use or mobile working. Read fair-use and traffic-management terms closely.
Illustrative profileBackup or secondary line
Consider expiry, auto-renewal, minimum top-up and whether the number must stay active.
Illustrative profileSIM-only checklist
Questions to answer before switching
01Is the handset unlocked and compatible?
02What is the real minimum commitment?
03How are annual price changes handled?
04What happens when the introductory period ends?
Do not cancel your old service too early
If you plan to transfer a number, follow the provider’s transfer process. Cancelling first can create avoidable complications.
Common questions
SIM-only FAQs
Not necessarily. SIM-only plans can be rolling, fixed-term or prepaid. Check the minimum term, notice period and any early-exit charge.
Number transfer is commonly available, but the process and timing depend on the losing and gaining providers. Confirm the transfer steps before cancelling anything yourself.
Use your phone’s recent mobile-data statistics as a starting point and allow for changes in streaming, travel or hotspot use.
The handset must support the required SIM or eSIM format, relevant network technologies and any provider compatibility requirements. It may also need to be unlocked.