Regarding the saw, I don't know if I'd call it tiny exactly (the specs I linked to say it's 4.2 inches). I do think they've done a great job on the tooth design as it goes through wood quickly and without too much effort.

I can say I've definitely cut through branches that I wouldn't have been able to break easily by hand; this is especially true if you ever need to work with green wood.
_________________________
Victory awaits him who has everything in order — luck, people call it. Defeat is certain for him who has neglected to take the necessary precautions in time; this is called bad luck. Roald Amundsen