What Wi-Fi frequency band is required to add devices to the Tuya Smart app?

Devices must be connected to a 2.4 GHz Wi-Fi network when pairing. This applies to manually added Wi-Fi devices, Zigbee gateway setup, and the Auto Scan function — all require a 2.4 GHz Wi-Fi network. Dual-band networks that support both 2.4 GHz and 5 GHz can use AP mode for device pairing. (Pages 20, 33, 44)