I have Sig Sauer Kilo3000BDX (bino/rangefinder combo, purchased in 2020) and the Kilo5k (purchased this year for bow hunting). I also have Leica (2015 model), Leupold (2008 and 2018 model), and other off brand range finders. Hands down, zero question, no comparison the Sig Sauer(s) are the best rangefinders I have personally used (I compared with Swarovski, Zeiss, and Leica when looking for a rangefinder/bino combo). With the BDX, EASILY range animals to 3000 yards (max range on a critter was last weekend, mule deer at 3875 with a rest). With the 5k, max I have got was an elk at 2574, no rest (was sitting down). None of the other range finders I have ever come close to that performance. Binos are heavy, glass is really good (not quite as good as the big three, range finder is much better in my opinion).