Using Bluetooth to pair gives the added bonus of being able to actively communicate with the Pi while it's trying to pair with WiFi. Additionally, it means that the phone can maintain a cellular connection, and won't give off errors saying the WiFi doesn't have internet access.
Using Bluetooth to pair gives the added bonus of being able to actively communicate with the Pi while it's trying to pair with WiFi. Additionally, it means that the phone can maintain a cellular connection, and won't give off errors saying the WiFi doesn't have internet access.