<s>
Xperia	B-Application
Tablet	I-Application
(	O
former	O
code	O
names	O
Sony	O
S1	O
and	O
Sony	B-Application
S2	I-Application
)	O
,	O
formerly	O
known	O
as	O
Sony	B-Application
Tablet	I-Application
,	O
is	O
the	O
brand	O
name	O
of	O
a	O
series	O
of	O
tablet	B-Device
computers	I-Device
.	O
</s>
<s>
The	O
first	O
models	O
originally	O
ran	O
Google	B-Application
's	I-Application
operating	O
system	O
Android	B-Application
3.1	I-Application
Honeycomb	I-Application
,	O
but	O
more	O
recent	O
models	O
operate	O
on	O
the	O
Android	B-Application
4.1.2	I-Application
system	O
.	O
</s>
<s>
They	O
featured	O
touchscreens	B-Device
,	O
two	O
cameras	O
(	O
a	O
rear-facing	O
5	O
MP	O
,	O
a	O
front-facing	O
0.3	O
MP	O
)	O
,	O
infrared	O
sensor	O
,	O
Wi-Fi	O
.	O
</s>
<s>
Also	O
,	O
they	O
support	O
PlayStation	O
Suite	O
,	O
DLNA	O
,	O
and	O
are	O
3G/4G	O
compatible	O
.	O
</s>
<s>
To	O
increase	O
the	O
number	O
of	O
apps	O
available	O
and	O
provide	O
marketing	O
support	O
for	O
both	O
tablets	B-Device
,	O
Sony	O
and	O
Adobe	O
Systems	O
will	O
hold	O
a	O
$	O
200,000	O
competition	O
targeting	O
app	O
developers	O
.	O
</s>
<s>
The	O
latest	O
in	O
the	O
series	O
is	O
the	O
Xperia	B-Application
Z4	I-Application
Tablet	I-Application
.	O
</s>
<s>
On	O
April	O
26	O
,	O
2011	O
,	O
Sony	O
announced	O
that	O
it	O
would	O
be	O
developing	O
two	O
Android	O
tablets	B-Device
,	O
codenamed	O
S1	O
and	O
S2	O
.	O
</s>
<s>
The	O
S1	O
(	O
which	O
became	O
the	O
Tablet	B-Application
S	I-Application
)	O
was	O
said	O
to	O
be	O
"	O
optimized	O
for	O
rich	O
media	O
entertainment	O
"	O
while	O
the	O
S2	O
(	O
later	O
Tablet	B-Device
P	O
)	O
would	O
be	O
"	O
ideal	O
for	O
mobile	O
communication	O
and	O
entertainment	O
"	O
.	O
</s>
<s>
On	O
15	O
June	O
2011	O
,	O
Sony	O
released	O
the	O
first	O
in	O
a	O
series	O
of	O
five	O
videos	O
titled	O
"	O
Two	O
Will	O
"	O
,	O
promoting	O
and	O
featuring	O
the	O
Tablets	B-Device
in	O
an	O
elaborately	O
designed	O
Rube	O
Goldberg	O
Machine	O
.	O
</s>
<s>
The	O
Sony	B-Application
Tablet	I-Application
S	O
(	O
former	O
code	O
name	O
Sony	O
S1	O
)	O
has	O
one	O
touchscreen	B-Device
display	B-Device
in	O
a	O
slate	O
layout	O
,	O
and	O
a	O
unique	O
wrap	O
design	O
inspired	O
by	O
the	O
way	O
some	O
persons	O
fold	O
magazines	O
while	O
reading	O
them	O
.	O
</s>
<s>
It	O
was	O
released	O
on	O
11	O
September	O
2011	O
,	O
as	O
the	O
first	O
available	O
member	O
of	O
the	O
Sony	B-Application
Tablet	I-Application
series	O
.	O
</s>
<s>
In	O
early	O
reviews	O
in	O
late	O
2011	O
,	O
the	O
units	O
compared	O
favorably	O
to	O
similar	O
high-end	O
tablets	B-Device
.	O
</s>
<s>
The	O
Xperia	B-Application
Tablet	I-Application
S	I-Application
was	O
announced	O
at	O
Internationale	O
Funkausstellung	O
Berlin	O
(	O
IFA	O
)	O
2012	O
.	O
</s>
<s>
Initial	O
release	O
contained	O
firmware	O
with	O
Android	B-Application
Ice	I-Application
Cream	I-Application
Sandwich	I-Application
4.0	O
.	O
</s>
<s>
Sony	O
promised	O
to	O
release	O
Android	B-Application
Jelly	I-Application
Bean	I-Application
4.1	O
some	O
time	O
mid-April	O
.	O
</s>
<s>
The	O
Xperia	B-Application
Tablet	I-Application
Z	I-Application
was	O
announced	O
at	O
Mobile	O
World	O
Congress	O
in	O
January	O
2013	O
.	O
</s>
<s>
Among	O
major	O
changes	O
include	O
a	O
move	O
from	O
Tegra-based	O
processor	O
to	O
the	O
quad-core	O
Snapdragon	O
S4	O
Pro	O
CPU	O
,	O
with	O
a	O
larger	O
screen	O
size	O
of	O
10.1	O
inches	O
and	O
upgraded	O
resolution	O
of	O
1920	O
x	O
1200	O
.	O
</s>
<s>
The	O
Xperia	B-Application
Tablet	I-Application
Z2	I-Application
was	O
released	O
in	O
2014	O
with	O
10.1-inch	O
1920x1200	O
screen	O
and	O
16	O
GB	O
of	O
internal	O
storage	O
and	O
3	O
GB	O
of	O
RAM	O
and	O
shipped	O
with	O
Android	O
4.4	O
(	O
Upgradable	O
to	O
5.1	O
)	O
.	O
</s>
<s>
The	O
Xperia	B-Application
Tablet	I-Application
Z3	I-Application
Compact	I-Application
was	O
released	O
in	O
2014	O
with	O
8.0-inch	O
1920x1200	O
screen	O
and	O
16	O
GB	O
of	O
internal	O
storage	O
and	O
3	O
GB	O
of	O
RAM	O
and	O
shipped	O
with	O
Android	O
4.4	O
(	O
Upgradable	O
to	O
6.0	O
)	O
.	O
</s>
<s>
The	O
Xperia	B-Application
Z4	I-Application
Tablet	I-Application
was	O
released	O
in	O
2014	O
with	O
10.1-inch	O
2560x1600	O
screen	O
and	O
32	O
GB	O
of	O
internal	O
storage	O
and	O
3	O
GB	O
of	O
RAM	O
and	O
shipped	O
with	O
Android	O
5.0	O
(	O
Upgradable	O
to	O
7.0	O
)	O
.	O
</s>
