Guides
Helpful SIM-only guides
Practical explainers on UK networks, roaming, eSIMs and the details worth checking before you switch.
GuideWho uses Vodafone’s network in the UK?Lebara, Talkmobile, VOXI and Asda Mobile explained, including VodafoneThree changes.Read guide →GuideWho uses Three’s network in the UK?iD Mobile, SMARTY, Superdrug Mobile and Honest Mobile explained, including VodafoneThree changes.Read guide →GuideWho uses EE’s network in the UK?1pMobile, Lyca, BT Mobile and other EE-based providers explained.Read guide →GuideWho uses O2’s network in the UK?Tesco Mobile, giffgaff and Sky Mobile explained, including roaming, eSIM and 5G+.Read guide →Best dealsBest SIM-only deals under £10Compare current cheap UK SIMs by price, flexibility, roaming and network.Read guide →Flexible SIMsBest 30-day SIM-only dealsCompare rolling and one-month plans, plus the value you trade for avoiding a long contract.Read guide →eSIMWhat is an eSIM and how does it work?A practical explanation of digital SIMs, compatible devices, provider support and switching.Read guide →Switching guideHow to switch and keep your numberA practical UK PAC, STAC and number-porting playbook, from ordering a SIM to porting day.Read guide →TravelBest SIMs for EU roamingCompare included roaming limits, passes, fair-use rules and travel costs.Read guide →ComparisonLebara vs Talkmobile: what to compareData, network details, term and roaming.Read guide →GuideHow to compare SIMs for EU roamingCheck destinations, limits and fair-use terms.Read guide →GuideWhat is an eSIM and do you need one?A straightforward introduction to eSIMs.Read guide →GuideUK mobile price rises explainedWhere to find a provider’s stated policy.Read guide →