The behaviour is due to the lack of a special voice chip, which is only installed in the higher-end Galaxy series. In most A series such as the Galaxy A16 5G, "Hey Google" therefore cannot activate the device from standby. Official Samsung documentation shows that voice wake functions are usually only available with Bixby if the device has this function. A-series models usually do not have this function. Google help pages (Voice Match, Assistant settings) also describe how to activate "Hey Google", but only on devices that generally support this function.

This is a device for the DACH region. Otherwise, the manufacturer can be contacted with the serial number of the model.

The smartphone does not support an eSIM function. It has a hybrid dual SIM slot, which allows the use of two physical nano SIM cards or a SIM card and a microSD card, but no eSIM.

Yes, it works perfectly in Switzerland.

No, eSIM is not supported by this version.

Yes, yes, no problem

The maximum size for an additional memory card is 1.5 TB (terabyte). The smartphone supports microSD cards up to this capacity in the hybrid slot alongside the dual SIM function.