Setting up & using Multi Device 

Although Multi Device supports roaming, it is not supported by the Apple Watch outside the Swisscom mobile network. However, you can pair your Apple Watches with your iPhone (Bluetooth) or use the WLAN function aboard. By contrast, the Samsung Watch Galaxy supports international roaming and can thus be used abroad to its full extent.

Some devices cannot receive a roaming SMS so you may not receive an SMS with the price information for using the device abroad. The costs for use abroad are available in the tariff overview.

All inOne mobile L and XL subscriptions include a Watches & Wearables option, which you can use with both the Apple Watch and the Samsung Galaxy Watch.

Apple Watch: Open the “Apple Watch” app on your iPhone, tap “My watch” and then tap the top of your Apple Watch display. Tap the “Info” button and then on “Unpair Apple Watch”.
 
Samsung Watch: Go to “Settings”, then “General” and “Reset”.

You have to remove the device in the Swisscom Cockpit to cancel the monthly Multi Device costs.
Once activated the Multi Device option cannot be cancelled until the end of the following month. After that, you can cancel the Multi Device option whenever you like. Costs are billed on a pro rata basis.

Block your eSIM profile at https://cockpit.swisscom.ch(opens in new tab).

N.B. When you set it up, secure your smartwatch with a personal device code as the device does not have a SIM pin.

Multi Device options are available for inOne mobile go, premium, basic, light and Swiss mobile flat (for residential, SME and youth subscriptions), as well as for older inOne mobile subscriptions (XS–XL).

With inOne mobile premium, you can use 3 additional smartphone and/or tablet devices and 2 additional watch and/or wearable devices free of charge. 

No. Multi Device is intended for the personal use of one person only. All devices can be reached using the same telephone number. Anyone with access to your additional device can use your services at home and abroad and has access to the Cockpit (cockpit.swisscom.ch(opens in new tab)) for example. They can make changes to the settings for your devices there. We recommend the new inOne products for people in the same household.

Swisscom assumes no liability or guarantee for the function of third-party services (such as third-party instant messaging or apps) with Multi Device. WhatsApp currently only supports the use of WhatsApp accounts with one number on one device(opens in new tab) (as at April 2017). iMessage supports Multi Device. 

With the Connect pack, you can use 3 additional smartphone and/or tablet devices free of charge.

The Multi Device option for up to 10 additional devices is only billed when you activate it.

No, with every Multi Device SIM the SIM PIN is deactivated by default. The reason for this is that it is not possible to enter a PIN for additional devices without a display (e.g. tracker or camera).
 
Note: If you receive your Multi Device SIM, you will still find a PIN printed on the SIM cardholder. This is required, should you want to reactivate the PIN. Insert the SIM into the device and activate the SIM PIN in the settings. Use the PIN on the SIM cardholder. After initial entry, the PIN can be changed as desired.

You can simply remove the Multi Device SIM from your additional device and place it in your new additional device. If the SIM is too large for your new additional device you can order a replacement SIM on My Swisscom (Customer Center) or – in the opposite case – use a SIM card adapter.

Order a replacement SIM

Micro-SIM Adapter (CHF 4.90)

Nano-SIM Adapter Set (CHF 4.90)

There is a minimum service period for Multi Device.

Once activated, the Multi Device option cannot be cancelled until the end of the following month. When the minimum service period has expired, the Multi Device option can be cancelled at any time without compensation. When deactivating, the Multi Device option is immediately deactivated via the Cockpit(opens in new tab). When it is deactivated, the monthly fee is charged pro rata.

When the main contract is cancelled (the existing inOne mobile contract for the master device), the Multi Device option is also cancelled automatically.

The master device is unaffected.
 
The functions of your master device and the services included in your inOne mobile subscription can still be used as normal.

In the Swisscom Cockpit(opens in new tab), you can manage the “calls” function in the device settings of your additional device. You can access the Swisscom Cockpit from your master or additional device. You can view current costs and inclusive units for the overall subscription on My Swisscom and in Swisscom Cockpit(opens in new tab). Usage is not shown per device.