I'll be very curious to hear how it performs for you. I hope everything works out. The horror stories coming from ATN owners have persistently scared me away from their products. 700$ for an electronic sight is a whole bunch of not-screwing-around money, and it is hard to stomach the fact that many customers seem fundamentally unable to get in touch with ATN's customer service and have to resort to their social media marketing department instead. The whole thing has sadly just been less than impressive.
And there is one other big red flag about ATN in my eyes: the dishonesty of their reviews. Over the years I've noticed/learned something, and that is to try to avoid companies which are dishonest when it comes to reviews. If you're going to fake something so small to try and superficially boost your image, what other deceitful practices are you willing to engage in? And why do your reviews need a boost in the first place? Anyway point is if there is one red flag about a company, and an almost guarantee that if something goes wrong I'm going to get burned, it is a company that fakes their reviews.
No company, and I mean NO company, gets perfect reviews. Maybe some customer clicks one star by accident, or maybe some customer has a shipping issue which is out of your control (it happens and is unavoidable), maybe some customer is just a little special or won't RTFM, or maybe some customer thinks three stars means the product is "just fine, nothing wrong." Either way reviews always follow a normal distribution, even on a fantastic product, you'll see (hopefully) mostly five stars, some four, a few three, and just a couple two stars and a slightly higher bump of one stars. If you don't see this, it is a MAJOR red flag. Why do I bring this up? This is why:
https://www.atncorp.com/reviews I just scrolled through all twenty pages, just to double check. All the reviews are four and five star, not a single one star review to be found. Skimming their entire website I found only one 3 star review. NOWHERE did I see a single one star or two star review.
Now compare that with Amazon:
https://www.amazon.com/ATN-Corporation-X-Sight-Optics-Vision/product-reviews/B079JYL16W/ref=cm_cr_dp_d_show_all_top?ie=UTF8&reviewerType=all_reviews And this optic is better reviewed than many of theirs. Now how about optics planet?
https://www.opticsplanet.com/reviews/reviews-atn-atn-x-sight-4k-pro-edition-smart-day-night-hunting-rifle-scope-with-full-hd.html Same deal. Now how about the BBB?
https://www.bbb.org/us/ca/south-san-francisco/profile/building-materials/american-technologies-network-corporation-1116-71818 Seven complaints, only some resolved, and one five star review that reads like it was written by an employee. Not great.
So here I am, like a jerk, saying negative things about an expensive toy which you're probably excited about. Why bring it up? Because please please please be careful. Test it thoroughly and quickly, know your options for resolution if something goes wrong, and be prepared and proactive. I'd hate to see another person get screwed by ATN.
I hope this was helpful and taken in the spirit in which it was intended, which is to say concern for a fellow forumite.

I really want you to thoroughly enjoy this sight, or at the very least get your money back without a huge hassle should it not live up to expectations.