Your Canada plug does not fit sockets in Switzerland, so you will need a travel adapter for Type C, J. In addition, standard mains voltage differs (120V vs 230V). Ensure your electronics are rated 100-240V, or carry a step-down/step-up voltage converter. Electrical frequency also differs (60Hz vs 50Hz). Modern digital chargers are dual-frequency (50/60Hz), but analog motor-driven clocks or clippers may run slightly faster or slower.
Compare leading certified universal travel adapters equipped with multi-region prongs, GaN fast charging, and auto-resetting safety fuses.
Look at your device power brick or label:
Yes. Phone chargers are universal dual-voltage (100-240V). If the plug prongs do not match, a standard travel plug adapter is all you need.
Switzerland uses Type C, J. Look for 3-pin adapters if your appliance uses a grounded plug.