The AN/GVS-5 is the american equivalent to the Ruskie LRU-1.
As to which is more "powerful", they are both so powerful that they can range to their full limit under the most horrible conditions.
The AN/GVS has a range of 10,000 meters, under the worst condidtion... and by worst, I mean WORST!
I have ranged across a valley in fog so thich, I couldn't see more than 100 yards, and got the accurate range on the other side of 4,000 meters.
The case holds 3 batteries, and I have a total of five. I will probably buy a bunch more, as Nicads are going out of style.
The unit is indestructable, so I'm not worried about it "breaking", unless I fall off a cliff with it, in which case I won't need to worry too much... but I have a full parts kit, including a new mounted laser unit, plus repare manuals.
The laser unit (a solid state crystal) won't wear out... it has a life of 10,000,000 firings.