Everything I've seen has bad ratings because apparently they are selling screen protectors for the regular 7 as fitting the mini. And they don't.
I bought a Delta Shield from Amazon and it is the right size but I haven't put it on because it is wet application and recommends not using your phone for up to 24 hours.
The one I bought directly from DeltaShield on Amazon looks like it will fit perfectly. It has a small cutout for the proximity sensor otherwise it is a perfect rectangle. I will try putting it on tonight and leave a review after that. I wonder if the person might have bought the mini screen protector for the regular Axon 7.That's odd because the one review for the product says that it does not fit the mini. Every one on amazon seems to be the same problem.