Well - I haven’t tried the NK version, but the same claim was made about the Dorp / AliExpress version.
To me, they feel nothing like Holy Pandas - until you take the stem out and put it in a Panda housing. Before that, they’re much more similar to Halo Clears.
That said, I’ll be picking up a few of these to compare with the Dorp / AliExpress version and Halos.
Edit: here are some photos comparing a Halo True and first Polia version stem.