Telefonica Spain's O2 brand has launched a festive offer for its eSIMFlag service aimed at customers travelling abroad in the ...

Users with a contract with the mobile network provider O2, a Telefonica subsidiary, are complaining about problems activating their contract with the Apple Watch. Mobile-capable devices such as the ...

If you own an iPhone XS or newer, your device comes with eSIM built in. That means you can skip physical SIM cards and simply set up cellular plans for international travel right on your phone, ...