<s>
The	O
Sony	B-Application
Ericsson	I-Application
Xperia	I-Application
arc	I-Application
is	O
an	O
Android	B-Application
smartphone	B-Application
launched	O
on	O
24	O
March	O
2011	O
in	O
Japan	O
,	O
and	O
1	O
April	O
2011	O
in	O
Europe	O
.	O
</s>
<s>
It	O
belongs	O
to	O
Sony	O
's	O
large	O
family	O
of	O
Xperia	B-Device
smartphones	B-Application
and	O
tablets	O
.	O
</s>
<s>
Sony	O
bought	O
Ericsson	O
's	O
stake	O
in	O
the	O
joint-venture	O
in	O
2012	O
and	O
since	O
2012	O
all	O
new	O
Xperia	B-Device
products	O
have	O
been	O
branded	O
only	O
Sony	O
.	O
</s>
<s>
The	O
Xperia	B-Application
arc	I-Application
is	O
also	O
known	O
as	O
Anzu	O
or	O
X12	O
or	O
LT15i	O
,	O
LT15a	O
...	O
(	O
the	O
ending	O
letter	O
,	O
in	O
the	O
'	O
LT15~	O
 '	O
names	O
-also	O
often	O
written	O
with	O
small	O
caps	O
'	O
lt15~'-	O
,	O
indicates	O
different	O
models	O
,	O
in	O
particular	O
related	O
to	O
geography	O
.	O
)	O
</s>
<s>
It	O
has	O
a	O
touch-screen	O
,	O
the	O
mobile	O
BRAVIA	O
engine	O
which	O
optimises	O
the	O
picture	O
and	O
runs	O
at	O
a	O
resolution	O
of	O
854×480	O
pixels	B-Algorithm
,	O
a	O
1GHz	O
Qualcomm	B-Architecture
Snapdragon	I-Architecture
processor	O
,	O
an	O
8.1mega-pixel	O
camera	O
,	O
micro-HDMI-out	O
and	O
512MB	O
of	O
RAM	O
.	O
</s>
<s>
The	O
Sony	B-Application
Ericsson	I-Application
Xperia	I-Application
arc	I-Application
is	O
available	O
in	O
four	O
colors	O
:	O
Midnight	O
Blue	O
,	O
Misty	O
Silver	O
,	O
Pink	O
(	O
Japan	O
and	O
South	O
Korea	O
)	O
,	O
Black	O
(	O
US	O
)	O
,	O
and	O
White	O
and	O
Black	O
(	O
South	O
Korea	O
and	O
Mexico	O
only	O
)	O
.	O
</s>
<s>
It	O
supports	O
multi-touch	B-Application
,	O
is	O
scratch	O
resistant	O
and	O
features	O
the	O
mobile	O
BRAVIA	O
engine	O
from	O
Sony	O
and	O
is	O
capable	O
of	O
displaying	O
16,777,216	O
colours	O
.	O
</s>
<s>
The	O
camera	O
is	O
an	O
8.1	O
megapixels	O
Exmor	B-Device
R	I-Device
sensor	O
and	O
is	O
capable	O
of	O
recording	O
video	O
at	O
720p	O
high-definition	O
.	O
</s>
<s>
The	O
Xperia	B-Application
arc	I-Application
too	O
features	O
only	O
3	O
hardware	O
keys	O
,	O
unlike	O
the	O
usual	O
4-key	O
pattern	O
seen	O
in	O
Android	B-Application
phones	I-Application
.	O
</s>
<s>
The	O
Xperia	B-Application
arc	I-Application
operates	O
on	O
Android	B-Application
2.3	I-Application
(	O
Gingerbread	B-Application
)	O
with	O
a	O
slightly	O
changed	O
launcher	O
.	O
</s>
<s>
The	O
device	O
is	O
compatible	O
with	O
Android	B-Application
4.0	I-Application
Ice	I-Application
Cream	I-Application
Sandwich	I-Application
,	O
and	O
Sony	O
released	O
an	O
official	O
update	O
to	O
4.0	O
for	O
unlocked	O
units	O
in	O
early	O
June	O
2012	O
.	O
</s>
<s>
It	O
also	O
features	O
an	O
Exmor	B-Device
R	I-Device
sensor	O
that	O
allows	O
the	O
capture	O
of	O
high	O
definition	O
movies	O
and	O
stills	O
in	O
low	O
lit	O
areas	O
,	O
which	O
can	O
then	O
be	O
shown	O
on	O
an	O
HDTV	B-Device
via	O
the	O
HDMI	B-Protocol
connector	I-Protocol
.	O
</s>
<s>
The	O
Xperia	B-Application
arc	I-Application
was	O
first	O
revealed	O
on	O
6	O
January	O
2011	O
at	O
CES	O
2011	O
.	O
</s>
