Apparently, you're having issues about spending big monies for a good night vision. Am I close?
I own, or have owned, 5 different night vision scopes. I can say without any reservation.... You get what you pay for!
The ATN X-Sight II is not much more than a glorified HD camera. It eats batteries, and in fact, without the correct external battery, it is a nightmare, no pun intended! On my 10 scale, it rates a 4. And it is REALLY heavy!
Image wise, the Photon XT isn't any better, and neither is the Viper. The only advantage the Viper has, it is an add-on, rather than a replacement. It is too heavy as well! Several of the lessor priced Armasights are sort of okay, but they're still early generations (1 or 1+).
You just do not get into anything quality (past Gen 2) if you don't lay out big bucks. For example, the Armasight Nemesis is about $1,500 and it is still Gen 2 quality. Passible, depending on how you're going to use it. But the truth is, you have to get into Gen 3 thermal scopes to get the image quality most serious night hunters are looking for. And Gen 3 scopes start at about $5,000, and range to $15,000 for top of the line.
If you're just a casual night shooter, and want 24/7 video capability, and don't mind the weight, buy the ATN 5x20 X-Sight II, its companion battery (not an after-market one!), leave it on 5X, and use the most expensive 64 GB chip you can buy (≈$100). You will be happy enough, at least until the extra weight gets you down, which it will in time.