Yep.It is fragile.The moment I received it for my Dad,I ordered cover.
Just few suggestions for covers-
Flip cover-nCase
Bumper and back covers-Amzer.
These are cheap VFM covers if you like to go with them.
I think Nilkin has a tempered glass or even Xtremeguard is good option.But I just put a simple scratch guard pertaining Dad's robust use and bought him flip cover.
Nice tip there. Thanks for the suggestions. A case is warranted if you are worried about your Moto X. Yes it does make it a bit ugly since Moto X looks damn good without 'em! But they do make sure your phone don't die in an accident.
By Flip cover-ncase did you mean this? nCase Flip Cover for Moto X
And Bumber and back covers-Amzer this? Amzer Back Cover for Motorola Moto X
Personally I bought this highly solid looking case: nCase Back Cover for Moto X (Red n Black)
But I think I will buy Flip cover too since I want to be able to take out my phone out of its shell at home easily!