https://www.cnet.com/news/next-gen-smart-home-gear-will-squeeze-10-years-from-tiny-batteries/

The biggest enhancement though is dramatically increased energy efficiency. In fact Sigma claims that one of these devices could run for up to 10 years powered by just as small coin battery cell. Another upside is a potentially smaller physical footprint. That hopefully means more smart home computing power in less space.

Sigma expects its next generation Z-Wave 700 Series chips to ship in Q2 of 2018.