Here's a quick and dirty side by side of the Caly 3 and Sage 1. I'm sorry for the crappy cell shots
The Caly 3 doesn't take as much room in the pocket as the Sage 1. It's a small difference, but the Sage's blade sticks further out from the scales when closed.
Overall the Caly is a bit smaller. The blade and handle are a touch shorter. The handle is also slimmer on the Caly 3.
With the closed back on the Caly, weight feels pretty much the same between the two. Same for thickness. They're pretty much the same.
Texture wise, I prefer the Sage 1 in hand. The CF is just grippy enough. As I mentioned in my other post, the smooth Caly 3 scales aren't that bad, as the jimping and ergos make up for the lack of texture. I can see the Caly 3 being friendlier to clothes, and comes out of the pocket easier as well.
Neither my Caly 3 or 3.5 really like flicking open. I use the full range of motion with the thumb to open them. The Sage 1 snaps open very easily with a light thumb flick. Sage 1 is easier to close one handed, but some people don't like putting their thumb in the blade path. Caly is doable one handed, but takes a little more thought. Even though they both have deep carry clips, I like that on the Sage, the back sticks up just a little more, giving you more purchase to extract from the pocket.
Choosing just one is too hard... Get both

But if it was only one... I'd have to go for the Caly 3.
I hope that helps a little.
CC