Tablets, smartwatches and trackers: with Multi Device options, you can use your mobile subscription on up to 10 additional devices. Use your main device’s phone number to make and receive calls on telephony-enabled devices and connect all your additional devices to the Internet at the same time.
Requirements for using Multi Device: You will need a smartphone with one of the specified subscriptions, an additional device with a SIM compartment or eSIM and a Multi Device SIM for each additional device. You receive these with your inOne mobile subscription or you can order them here. Your main device and your eSIM device (e.g. Apple Watch) do not require an additional SIM card. Multi Device can be used with all inOne (SME) mobile subscriptions XS – XL, inOne (SME) mobile go, inOne (SME) mobile premium, Swiss (SME) mobile flat and inOne XTRA mobile S – L, inOne XTRA mobile go and Swiss mobile light young, inOne mobile basic young, Swiss mobile flat young, inOne mobile go young. Multi Device is not available for Liechtenstein phone lines with a +423 dialling code.
Connect additional devices straight to the mobile network
Make calls using the phone number associated with your main device
Find out how to activate Multi Device on your additional
devices and use it with your mobile subscription.