Paring the fun of rasing a digital pets with the health benefits of a fit bit is honestly ingenious. Not only do you get to take care of your digimon in a very interactive way but you also get to promote your own style of healthy living.
I would highly recommend replacing the included wrist band as it won't fit larger wrist and that the tried and true clasp design on standard fit bits makes it feel more secure.
Try out silicon bands for the Samsung gear fit2 / fit2 pro and screen protectors of the same type if you don't end up getting Bandai's, just remember when your changing out the band that you want to screw back in the 2 bottom pieces or it could popout if you tighten it too much or hit it at a wired angle.