Manufacturers are regularly cryptic about what WDR support they actually provide.
They invent marketing buzzwords. They self assign dB rating that cannot meaningfully be compared across manufacturers.
In IPVM's testing, the key differentiator we have found is support for 'true' multi-exposure WDR (see our WDR Tutorial for background), instead of 'fake' digital / electronic / software only WDR.
Added To Camera Finder
We have verified and complied what camera models are true WDR and have added this to our Camera Finder (under imaging, select WDR = Yes).
To provide some clarity we have compiled this "cheat sheet" for many camera manufactures, detailing what is and is not a true WDR camera.
The Cheat Sheet
This chart below provides a reference across manufacturers with notes as to marketing specifics, naming conventions, etc.