I have a Casio G'Zone Commando Android phone. Without an add-on case, it's waterproof, smashproof, cold-proof, heat-proof, dust-proof and requires no screen-protector. It cooks breakf...well, no.
Okay, so the in-store display for this phone was a fishbowl, full of water. They'd start it playing a tune, drop it in the tank, let it sink, reach in and use the screen, then adjust the volume using a physical toggle button on the side (you can see the screen bar change) and then take their hand out and invite you take the phone out of the water. Of course, it's playing just fine when you do.
It's not smashproof, but I can verify it handles being dropped just fine. I drop phones. I drop phones in water. I drop phones on asphalt and concrete. Coupla scuffs. It's got a Gorilla Glass screen, as many newer phones do now, and it needs no stick-on shield. You could scratch it with a key and leave no marks --another stunt at the store, btw.
It's got mil-spec email and VM encryption! Yeah, whatever. Karl Rove has the codes, trust me. (Let me reiterate, I love Big Brother and that gin is great.)
The GPS is fine, the on-board OEM software is good and spare batteries are cheap, although you cannot use "extended life size" because there's only one waterproof rear door available. The Android updates work fine and they're currently updated to use 2.3.3 . I have High Sierra coverage up to the JMT at Thousand Island Lake (moved south along lake and lost it), all over the Lagunas, Cuyamacas and San Bernadinos and it works flawlessly in Puerto Rico (where it darn sure also got wet). The onboard camera is crap, however.
The Commando is now obsolete, so Verizon sells them new for under $100, a far better price than I paid after smashing an armored Razor into pieces and walking into a Manhattan store with rubble in my hands...