G3 Bonesaw

Not too heavy, not terribly light either, comes with a decent sheath. The handle shape is compatible with attaching to the end of a ski pole for cutting blocks but also makes it awkward to hold in your hand. The blade works great for digging pits and cutting branches for firewood/shelter framing in case of an unplanned bivy.

Simple. Strong. Does the job. Great case. Measured weight is 177g for the saw, 46g for the case without straps.

I don’t find the handle particularly comfortable: too wide and not enough of a curve. Likely better if you have large hands. I’d consider a different saw with a more comfortable handle if I was buying one today.

After going through a couple saws, none available today cut as straight or have as good of a sheath as the G3. Not quite as nice of an interface with poles as some, but the crystal card and easy strapping offset and loss. Helped pass a Pro 1 course by cutting nice test blocks.

Great saw overall -- I've borrow a friend's a few times on Western ski trips.
(I've heard TSA kind of frowns on snow saws as carry-on.)

Rigid enough for nicely cutting through crusty layers (that aren't so nice to ski).
Ample width toward the back for doubling as a snow crystal card (complete with grid).

Length is relatively compact for packing away, yet the clever handle (which is reasonably ergonomic enough) doubles as the attachment point for a ski pole as extension, relying on ski straps.
No moving parts to break (unlike some other models potentially).

Photo shows the aftermath of some snowpit stability tests when I unwittingly poked my arm into the lair of a Sasquatch who latched onto me and wouldn't let go.
Fortunately as you can see in the background the G3 Bonesaw was at the ready for my partner to perform an Aron Ralston on me.
And bonus points for my carbon fiber and titanium replacement arm which saves valuable ounces for skimo!