It's not a fair comparison. Swarovski is a top quality precision optic with the best of the best quality control throughout all production. It has earned it's reputation 10 times over
I had a gen 1 65mm Razor HD spotter and hunted for a week in WY with a buddy that had a Swaro 65 mm HD spotter. We compared side by side several times over the week. If the Swaro is 100/100, then the Razor HD was probably about a 70-75/100 I would guess overall. I sold my Razor and bought a Swaro spotter after that hunt
Here's another question....10x42 vs. 12x50. There's both sets for sale in the classifieds.