I had the older HD-R and really liked the glass but the range button is on the left side. If you are a right handed archer then this causes issues holding your bow and ranging. I chose them over the Swaros because the Geovids have a much smaller minimum yardage reading. Again if you archery hunt this matters. I upgraded to the new Geovids last year and they are a step above anything out there. Effective horizontal yardage readings, crystal glass, and yardage button moved to the right side. I use swaro for my spotter and 15s but prefer geovids for my chest pair.