I have three that I consider pocket pipes. A Nording Compass pipe (5”, .8oz); handmade pipe by alekasandr bondarev (5.35”, .88oz), Vauen 3422 ny pipe (5.2”, 1.06 oz). The vauen is one of my favorite pipes of any size. I get a 30-40 min smoke, bowl never heats up, perfect clencher, perfect draw even with a 9mm filter. One of my favorite pipes - used to smoke it on my commute to work and still smoke it at home.
The Nording feels like a toy to me. I hate the tiny bit and never smoke it. In my opinion avoid.
The Bondarev is a very well made pipe. He is in latvia and has a website and some youtube videos. I think his pipes are extremely well engineered but not so great in terms of artistic sense. Pipe smokes great and is a perfect clencher BUT word of caution generally - the walls are on the thin side and the bowl heats up. That has improved as the pipe has broken in, but IMO if you are looking for a pocket pipe or any pipe I would be very careful with sub 1 oz pipes.
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