И да, все вайфаи, красивости и чудесные ip-based протоколы обламываются, когда речь заходит о времени автономной работы, исчисляемом годами
У них в планах ble. А ble работает годами
The goal of the first specification release will be Wi-Fi, up to and including 802.11ax (aka Wi-Fi 6), that is 802.11a/b/g/n/ac/ax; Thread over 802.15.4-2006 at 2.4 GHz; and IP implementations for Bluetooth Low Energy, versions 4.1, 4.2, and 5.0 for the network and physical wireless protocols.
The Project Connected Home over IP Working Group will likely also embrace other IP-bearing technologies like Ethernet, Cellular, Broadband, and others.