Looks like Bulb is installing some IHDs with wifi and some without. See Connecting your smart meter's In-Home Display (IHD) to Wi-Fi – Bulb They state “Connecting the In-Home Display to your Wi-Fi means it’ll stay updated automatically. You won’t need to run software updates like you do with a computer or smartphone. And it’ll give you access to more detailed features in your Bulb account in the future.” on Preparing for your smart meter installation – Bulb
I’m interested if there is any information on what additional features the WiFi model offers as I’ve received the non-wifi version.