Mini Laptop Mouses

Is a Mini mouse less comfortable than a normal mouse ?
I have a laptop but I take the plane only once a year. That would be the only time where a small size of mouse would be convenient for me.
Generally speaking, yes. The longer you work with a mouse, the more important the ergonomics become. If you do a lot of work while traveling, it would be good to pack a full size mouse as well as a mini mouse. As you point out, it is only when dealing with things like airline tray tables that small size is required.
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