“Best” available to the civilian market I know of is Vectronix Vector 23, but it is more than is needed for 500 yards.

Leica LRF binos are not reliable based on the two units I owned, both of which failed in the first 30 days.

I am using the current Zeiss offering. Ranging has been very reliable with no hiccups. The Swaros have a slightly better low light image, but the Swaro’s ergos are similar to a boat anchor to me. So, I prefer the Zeiss of these three based on actual use hunting deer and pigs in South Texas.

LRF binos do not have the equal level of optical performance as the same bino without LRF. Just a fyi.