Hey Cortana updated for some Windows 10 Mobile phones with new training system

[Windows Central]

The Hey Cortana app for Windows 10 Mobile has a new update for the Lumia 930 and Lumia 1520 (but not the Lumia 950 or Lumia 950 XL). The update includes some user interface changes and, more importantly, a new training algorithm that should make learning how to use Hey Cortana better.

Full story from the WindowsCentral blog...

 

[Avinash Jogi]

I think this feature is available for only some particular regions right. Is there any way to get this without its availability. I'm from India and I'm using Lumia 640

 

[Dusan Randj]

I think this feature is available for only some particular regions right. Is there any way to get this without its availability. I'm from India and I'm using Lumia 640

It's only available for 930,1520,950s.
640 doesn't have requires hardware for it.