The Sunrise extra SIM watch option activates the mobile features of the Apple Watch Series 3 GPS + Cellular. The Apple Watch can then be used without a WLAN or Bluetooth connection to an iPhone. The option is only available with the following mobile subscriptions:
- Sunrise Freedom
- Sunrise Mobile Unlimited (part of Sunrise One)
- MTV mobile Freedom
The option uses the data and calling volumes available with the mobile subscription it's linked to.