Is it better to choose WiFi or ZigBee for smart switch?

As we all know, according to different networking modes and communication protocols, it can be divided into WiFi switch, ZigBee switch and Bluetooth switch, especially WiFi switch and ZigBee switch.
So when choosing the smart switch again, should I choose WiFi smart switch or ZigBee smart switch? This will be discussed in detail below.
1 function application
WiFi and ZigBee smart switches have the same functions and applications. They can be controlled remotely through mobile phones and voice control through smart speakers.
2 connection mode
WiFi only needs to be connected to the WiFi router at home, but the ZigBee switch needs to be connected through the ZigBee switch. In the state of mobile phone networking, first add the ZigBee gateway, and then add the ZigBee switch.
3 application characteristics
The WiFi switch cannot be used when the WiFi network is disconnected at home, but the ZigBee switch can be used normally when the network is disconnected.
ZigBee switch can expand the connection network by adding ZigBee gateway, adding more ZigBee switches or equipment, and shunting through ZigBee gateway to maintain the stability of control signal.
However, the WiFi switch does not work, because the WiFi router or mobile phone hotspot access devices are limited. Once there are too many access devices, the signal will be very weak and easy to drop, affecting the normal Internet access of mobile phones or computers and the normal use of WiFi switches or WiFi devices.
WiFi switch power consumption is relatively large. ZigBee switch power consumption is low, far lower than WiFi switch power consumption, which is more power-saving.
4 price comparison
ZigBee switches are more expensive than WiFi switches, and there are additional costs for ZigBee gateways, but ZigBee is widely used in Smart Home Internet of things.
If there are not many smart devices connected at home, or the network bandwidth is sufficient, you can consider using WiFi switch.