Compatibility summary
You will need a travel adapter in Canada; plug types used there differ from Switzerland. Voltage differs by more than 20% — a voltage converter may be needed for some appliances.
Plug comparison
Switzerland plug types: C J
Canada plug types: A B
There is no common plug type between Switzerland (C J) and Canada (A B). You need a travel adapter.
Voltage comparison
Switzerland: 230V, 50Hz
Canada: 120V, 60Hz
Voltage converter recommended (Switzerland 230V vs Canada 120V).