Wifi and 4G Calling is currently available on the following devices:

  • iPhone Xs, iPhone Xs Max, iPhone X, iPhone Xr, iPhone 8 Plus, 8, 7 Plus, 7, 6s Plus, 6s, 6 Plus, 6, SE
  • Samsung Galaxy S9, S9 Plus, S8, S8 Plus, Note8, S7, S7 edge and J3 2017, A8, A3 2017, A6, J6, J5 (2017), A5 (2017), Note9, A7, J6+, J4+, A9
  • Sony Xperia XZ2, Xperia XZ3, XZ2 Compact, XZ Premium, Xperia XA2, Xperia XZ1, Xperia XZ1 Compact
  • Oneplus 5, 5T, 6, 6T
  • HTC U11
  • Doro 8035

You can add Wifi and 4G Calling using My O2 under ‘Device details’. Find out more about Wifi and 4G Calling

O2 Business customer? You can request Wifi and 4G Calling by getting in touch with your Account Manager, Digital Advisor or Business Partner. Or contact O2 Business customer services.