ELI5: What is the benefit of using Bluetooth for Mesh instead of WiFi? Generally speaking? I assume one is about energy consumption. WiFi has more coverage, right?
Assuming we're talking about IoT applications: Lower power (better battery life), less congestion on Wi-Fi channels, no fussing over IPv4/subnets/etc., smaller attack surface (it isn't a trojan horse to your LAN), simpler setup/enrollment procedure than dealing with WiFi authentication. Most of these things are true with Zigbee/Z-Wave/Thread too, with the exception of being able to use a smartphone to directly connect and manage devices.
