What a great time to be asking this question with so many options coming to market.
I'd been lusting after a geovid for years and came close, but never pulled the trigger.
I recently jumped on a sig-sauer kilo 4k when a deal popped up. I bought the sig knowing I'd be making sacrifices on the optics. Long story short, I ended up with a GPO Rangefinder Bino as well.
Borrowing my friends newly purchased Geovid allowed me to do an informal side by side comparison. Here's my distilled impressions;
Leica Optics; 9/10. Bright, clear contrasty. Exactly what I expected from Leica.
Leica Ranging; 5/10. Had difficulty returning a range at modest distances (600 and beyond). Readings weren't always consistent telling me I was reflecting off different points (aiming problem). Pretty good long delay returning a reading.
Sig-Sauer optics; 5/10. I was warned about the infamous blue tinge. It's real, and it was a problem for me. I feel that it interfered with spotting/identifying animals. Also low light image was not great. Big problems for me.
Sig-Sauer ranging; 9/10. At times I'm getting ranges returned to me at 4100 yards!… I'm reliably getting ranges at distances I have no right or intention of shooting at (I don't own a BMG). Returns were ultra quick and reliable. Why not 10/10?…in bright sunny conditions, the Sig didn't reliably range over 1000 yards. Probably too much interference from the ambient light.
GPO optics; 6/10. Similar blue tinge as Sig. not as pronounced. Clarity a bit better. I haven't hunted it yet so can't speak to game spotting.
GPO ranging; 8/10. Not quite the beast that the Sig is…but I'm happy with ranging trees and rocks at 3600 yards.
Other notes; the Sig comes with a very nice chest case/harness. It also comes with very usable BDX software. If you pop for the 6k you get even more capable software. I believe the Leica also comes with ballistic software. The GPO does not. The GPO comes with a case…but not nearly as nice as the Sig.
The Leica display is subdued and faint (allows you to focus on the subject better). The Sig display is bright and demands your attention. The GPO is in between the two.
So in a world where I need a ranging bino to do well at both roles…the bino's I have experience with come with significant compromises. Carrying separate bino and rangefinder is still on the table for me.
Maybe one day I'll hit the lottery…then I'll get a swaro! I hear that one does both very well.
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