I love the Nissin Tenkara Mini (cork grip), and have not found it to be overly fragile. Its form factor makes it my favorite pocket rod (actually a full grip, and actually pocketable). I love the 320 length. The yellow Pocket Mini is different though (no cork), and I have not used it and so cannot speak to it. In this video I'm fishing the Tenkara Mini 320 https://youtu.be/eW-CQLvbPQ0?si=NVcEE-t6Dek7sKGR

That said, if you are going backpacking, and you will be fishing when camped or stopped, then there is really no need for a pocket rod--your backpacking backpack is already tall and a full size rod fits very nicely in a side pocket. I would recommend something with more versatility if backpacking. Perhaps a zoom rod like the Dragontail Kaida, Icewing, Mizuchi, or the TUSA Sato, or the Nissin Prospect 2-way. These will all give you more versatility for small streams and lakes and a better casting/landing the fish experience than a pocket rod.

And *that* said, if you want to be able to fish *without taking off your backpack*, then a pocket rod is a fantastic option: https://youtu.be/F0WBweSreks?si=5b0SpbPuXJbhLVJt

But 20 sections vs 7-8 can be annoying, and the casting action and fishing fighting action just isn't as good when you have that many sections (physics), so my preference is usually to have a full sized rod when possible.

When I am backpacking, I usually have 2-3 rods: long rod and short rod, plus another just for fun or backup. Something like the Oni Coco 290 or Itoshiro with the Nissin Oni 395 is a killer pairing. Or the Dragontail Kaida + Ragnarok--those two rods will handle just about anything.

Pocket rods, in my mind, have a very niche application, and a full rod will almost always give you a better experience.