The Cold Steel Pendleton Lite Hunter claims to be 3 ounces. I don't know if that is with sheath, or without. It was the subject of a Field and Stream review years back. I liked that it was about $12 on Amazon. I have carried it for years, in the military and hunting.
I had a teammate drop a $300 Stryder on patrol, and ever since then have had mixed feelings about high-priced knives. I acknowledge that top end knives are beautiful, and made with expert craftsmanship, but in the end, they are tools, and I prefer the value option in most cases.
It holds an edge, sharpens well, and seems durable enough for most tasks. I have never been wanting while breaking down deer with it. The handle is big enough, and has good shape and texture/grip.
Although I have not batoned firewood with it. The blade is probably too short to baton anything bigger than your wrist.
For anyone that doesn't need to baton, and prioritizes weight and affordability, I hear good things about the Victorinox paring knife. Supposed to be about 1 ounce. Being a kitchen knife, my guess is it won't have a sheath, so that could be a deal killer.