"the indestructible 3310"
But let's not forget about the tiny 8210 which would explode into a self-assembly kit if dropped...
Way back when Panasonic made phones in the UK and I was working for them I happened to be around when one of the testers was doing a fairly scientific 'drop test' of a new Panasonic phone whilst using a Nokia 8210 and possibly a couple of other competitive products as a kind of control/comparison sample.
The rig consisted of a tiny platform, hinged on one side and latched on the other, about 1.5m high on which you'd lay a phone. Then a release button was pressed which would cause the platform to swing down and let the phone drop onto a concrete block below.
The next stage of the test was to examine the phone, note anything visibly broken, turn it on and make a test call.
The tester had to do this for something like 100 iterations.
Every time this guy dropped the Nokia 8210 it would explode - the whole case fell into several bits, the battery would go flying and I think even the keypad was detachable. So he'd have to go around collecting up all the bits from around him, reassemble and repeat the test...
Needless to say I don't think the 8210 made it through that test alive.
And you thought your job was mundane!
Not sure I'd fancy that kind of testing on many smartphones. Sure they might not fall to bits but screens these days are so much bigger and less forgiving.