It's WiFi but we can't reverse it because they use their own bridge/router. I support that motion sensor in my integration using their cloud and websocket to talk to it and get updates. The Ring security lighting bridge is required to use that sensor though.
And not to confuse anybody but the integration I linked is for when the devices are NOT connected directly to Hubitat. The drivers here in this thread are for when devices are connected directly to Hubitat (no Ring Alarm hub is in use).
