<s>
The	O
Casio	B-Application
G'zOne	I-Application
Commando	I-Application
is	O
a	O
smartphone	B-Application
which	O
is	O
ruggedized	B-Device
and	O
runs	O
the	O
Android	B-Application
operating	I-Application
system	I-Application
.	O
</s>
<s>
Its	O
main	O
selling	O
feature	O
is	O
that	O
it	O
is	O
ruggedized	B-Device
to	O
military	O
standard	O
MIL-STD-810G	O
.	O
</s>
<s>
,	O
it	O
is	O
the	O
first	O
retail-available	O
smartphone	B-Application
so	O
certified	O
.	O
</s>
<s>
Thus	O
,	O
it	O
is	O
stronger	O
and	O
more	O
durable	O
than	O
normal	O
consumer	O
electronics	O
,	O
similar	O
in	O
concept	O
to	O
the	O
Motorola	B-Application
DEFY	I-Application
,	O
but	O
certified	O
tougher	O
.	O
</s>
<s>
At	O
one	O
publication	O
,	O
technicians	O
tested	O
this	O
phone	O
and	O
more	O
recently	O
,	O
the	O
updated	O
model	O
,	O
G'zOne	B-Application
Commando	I-Application
4G	O
LTE	O
.	O
</s>
<s>
They	O
found	O
both	O
models	O
"	O
rugged	O
"	O
;	O
and	O
describe	O
no	O
ill	O
effects	O
after	O
randomly	O
dropping	O
G'zOne	B-Application
Commando	I-Application
4G	O
LTE	O
,	O
and	O
submerging	O
it	O
under	O
water	O
for	O
half	O
an	O
hour	O
.	O
</s>
<s>
The	O
phone	O
was	O
released	O
with	O
the	O
Android	B-Application
2.2.1	O
Froyo	O
operating	O
system	O
,	O
but	O
an	O
upgrade	O
to	O
Android	B-Application
2.3.3	O
GIngerbread	O
is	O
available	O
.	O
</s>
