What an eSIM is
A digital SIM built into your device — no physical card needed. Activate via QR code, typically within minutes.
Checking compatibility
Dial *#06#. If an EID number appears alongside your IMEI, eSIM is supported.
Devices that support it
iPhone XS and later, Samsung Galaxy S20 and later, and Google Pixel 3 and later all support eSIM.
eSIM across all 7 networks
All networks covered on this site support eSIM on compatible devices, though specific plan tiers and activation apps differ — see each network's guide for specifics.
Dual eSIM for travel
Devices supporting two active lines can keep your UK number live while running a local data eSIM abroad.
Independent guidance notice: Onuhiowise (onuhiowise.online) is an independent information and guidance website covering all major UK mobile networks equally — Three, O2, EE, Tesco Mobile, Vodafone, Sky Mobile, and iD Mobile. We are not any of these companies, not a reseller, not an agent, and not an authorised partner of any of them. We do not sell SIM cards, contracts, or airtime, and we do not display or quote pricing anywhere on this site. If you contact us by phone or form, you are reaching Onuhiowise's own independent guidance team — never a network's official customer service line. Our team will always introduce themselves as Onuhiowise, an independent service, and will never claim or imply that we are O2, Three, EE, Tesco Mobile, Vodafone, Sky Mobile, iD Mobile, or any other network. Network names and colours used on this site are trademarks of their respective owners, used only so you know which network a page is about — this does not imply any partnership or endorsement. Always confirm final pricing, contract terms, and account-specific matters directly with your network.