<s>
The	O
Motorola	B-Application
Droid	I-Application
4	I-Application
(	O
XT894	B-Application
)	O
is	O
a	O
smartphone	B-Application
made	O
by	O
Motorola	O
Mobility	O
.	O
</s>
<s>
It	O
was	O
released	O
with	O
Android	B-Application
2.3	I-Application
and	O
can	O
be	O
upgraded	O
to	O
Android	B-Application
4.1	I-Application
.	O
</s>
<s>
It	O
was	O
released	O
on	O
Verizon	B-Application
Wireless	I-Application
's	O
network	O
on	O
February	O
10	O
,	O
2012	O
.	O
</s>
<s>
It	O
is	O
the	O
successor	O
to	O
Motorola	O
's	O
Droid	B-Application
3	I-Application
,	O
and	O
is	O
one	O
of	O
the	O
first	O
smartphones	B-Application
to	O
support	O
GLONASS	O
in	O
addition	O
to	O
GPS	O
.	O
</s>
<s>
As	O
initially	O
marketed	O
by	O
Verizon	B-Application
,	O
when	O
first	O
launched	O
,	O
the	O
Droid	B-Application
4	I-Application
was	O
not	O
capable	O
of	O
roaming	O
in	O
countries	O
with	O
non-CDMA	O
wireless	O
networks	O
.	O
</s>
<s>
However	O
,	O
after	O
installing	O
the	O
update	O
from	O
Android	B-Application
2.3	I-Application
to	O
Android	B-Application
4.0	I-Application
,	O
global	O
roaming	O
is	O
automatically	O
enabled	O
on	O
the	O
handsets	O
,	O
allowing	O
the	O
Droid	B-Application
4	I-Application
to	O
use	O
GSM	O
bands	O
and	O
provide	O
HSPA	O
data	O
connections	O
outside	O
the	O
US	O
.	O
</s>
<s>
However	O
,	O
LTE	O
speeds	O
are	O
only	O
available	O
on	O
Verizon	B-Application
's	O
CDMA	B-Protocol
network	O
.	O
</s>
<s>
Unlike	O
previous	O
versions	O
of	O
the	O
phone	O
,	O
the	O
Droid	B-Application
4	I-Application
does	O
not	O
have	O
a	O
hot-swappable	O
battery	O
.	O
</s>
<s>
The	O
Droid	B-Application
4	I-Application
has	O
a	O
dual	B-Architecture
core	I-Architecture
TI	B-Device
OMAP	I-Device
processor	O
with	O
1.2GHz	O
,	O
updated	O
from	O
the	O
Droid	B-Application
3	I-Application
's	O
dual	B-Architecture
core	I-Architecture
1GHz	O
processor	O
.	O
</s>
<s>
Similarly	O
to	O
the	O
Motorola	B-Application
Atrix	I-Application
4G	I-Application
,	O
it	O
has	O
the	O
integrated	O
Ubuntu-based	O
'	O
Webtop	O
 '	O
application	O
from	O
Motorola	O
.	O
</s>
<s>
While	O
in	O
Webtop	O
mode	O
,	O
the	O
phone	O
,	O
operating	O
with	O
a	O
similar	O
UI	O
to	O
one	O
which	O
might	O
be	O
found	O
on	O
a	O
typical	O
Linux	O
desktop	O
,	O
can	O
run	O
several	O
applications	O
on	O
external	O
display	O
such	O
as	O
Firefox	B-Application
web	I-Application
browser	I-Application
,	O
SNS	O
clients	O
and	O
'	O
mobile	O
view	O
 '	O
application	O
enabling	O
total	O
access	O
of	O
Droid	B-Application
4	I-Application
and	O
its	O
screen	O
.	O
</s>
<s>
In	O
September	O
2011	O
,	O
Motorola	O
released	O
the	O
source	O
code	O
of	O
Webtop	O
application	O
at	O
SourceForge	B-Application
.	O
</s>
<s>
With	O
the	O
release	O
of	O
Android	B-Application
4.0	I-Application
Ice	B-Application
Cream	I-Application
Sandwich	I-Application
for	O
the	O
Droid	B-Application
4	I-Application
,	O
the	O
Webtop	O
application	O
has	O
been	O
replaced	O
.	O
</s>
<s>
Instead	O
of	O
the	O
Ubuntu-based	O
interface	O
and	O
applications	O
,	O
the	O
Droid	B-Application
4	I-Application
switches	O
to	O
ICS	O
's	O
tablet	O
mode	O
.	O
</s>
<s>
The	O
Droid	B-Application
4	I-Application
originally	O
came	O
with	O
Android	B-Application
2.3	I-Application
"	O
Gingerbread	B-Application
"	O
out	O
of	O
the	O
box	O
,	O
however	O
,	O
Motorola	O
gradually	O
updated	O
the	O
handset	O
to	O
Android	B-Application
4.0	I-Application
"	O
Ice	B-Application
Cream	I-Application
Sandwich	I-Application
"	O
and	O
then	O
finally	O
to	O
Android	B-Application
4.1	I-Application
"	O
Jelly	B-Application
Bean	I-Application
"	O
.	O
</s>
<s>
LineageOS	B-Application
support	O
exists	O
and	O
is	O
currently	O
being	O
maintained	O
by	O
the	O
community	O
,	O
with	O
LineageOS	B-Application
14.1	O
(	O
Android	B-Application
7.1.2	I-Application
"	I-Application
Nougat	I-Application
"	I-Application
)	O
being	O
the	O
latest	O
official	O
port	O
for	O
the	O
device	O
.	O
</s>
<s>
Work	O
is	O
being	O
done	O
to	O
make	O
the	O
Droid	B-Application
4	I-Application
supported	O
by	O
Maemo	O
Leste	O
.	O
</s>
