<s>
The	O
Sony	B-Application
Xperia	I-Application
Z5	I-Application
Premium	I-Application
is	O
an	O
Android	B-Application
smartphone	B-Application
produced	O
by	O
Sony	O
.	O
</s>
<s>
Part	O
of	O
the	O
Sony	B-Application
Xperia	I-Application
Z	I-Application
series	I-Application
,	O
the	O
device	O
,	O
at	O
that	O
point	O
known	O
by	O
the	O
project	O
code	O
name	O
"	O
Satsuki	O
"	O
,	O
was	O
unveiled	O
along	O
with	O
the	O
Sony	B-Application
Xperia	I-Application
Z5	I-Application
and	O
Xperia	B-Application
Z5	I-Application
Compact	I-Application
during	O
a	O
press	O
conference	O
at	O
IFA	O
2015	O
on	O
September	O
2	O
,	O
2015	O
.	O
</s>
<s>
The	O
device	O
was	O
first	O
released	O
in	O
Taiwan	O
on	O
November	O
5	O
,	O
2015	O
,	O
and	O
was	O
the	O
first	O
smartphone	B-Application
with	O
4K	B-Architecture
resolution	I-Architecture
.	O
</s>
<s>
The	O
Sony	B-Application
Xperia	I-Application
Z5	I-Application
Premium	I-Application
is	O
an	O
up-scaled	O
version	O
of	O
the	O
Xperia	B-Application
Z5	I-Application
and	O
is	O
the	O
first	O
ever	O
smartphone	B-Application
to	O
feature	O
a	O
4K	B-Architecture
display	I-Architecture
.	O
</s>
<s>
Similarly	O
to	O
the	O
Xperia	B-Application
Z5	I-Application
,	O
the	O
device	O
also	O
features	O
a	O
fingerprint	O
reader	O
and	O
a	O
23	O
Megapixel	O
camera	O
with	O
0.03	O
seconds	O
Hybrid	O
Autofocus	O
that	O
utilizes	O
phase	O
detection	O
autofocus	O
.	O
</s>
<s>
Unlike	O
the	O
Xperia	B-Application
Z5	I-Application
,	O
the	O
device	O
features	O
a	O
4K	B-Architecture
screen	O
with	O
the	O
resolution	O
of	O
3840×2160	O
pixels	O
whilst	O
still	O
retaining	O
2	O
hours	O
and	O
30	O
minutes	O
of	O
battery	O
life	O
.	O
</s>
<s>
The	O
Sony	B-Application
Xperia	I-Application
Z5	I-Application
Premium	I-Application
has	O
a	O
5.5-inch	O
IPS	O
LCD	O
display	O
,	O
Octa-core	B-Architecture
(	O
4x1.5	O
GHz	O
Cortex-A53	O
&	O
4x2.0	O
GHz	O
Cortex-A57	O
)	O
Qualcomm	O
Snapdragon	O
810	O
processor	O
,	O
3	O
GB	O
of	O
RAM	B-Architecture
and	O
32	O
GB	O
of	O
internal	O
storage	O
that	O
can	O
be	O
expanded	O
using	O
microSD	B-Device
cards	O
up	O
to	O
256	O
GB	O
.	O
</s>
<s>
The	O
Xperia	B-Application
Z5	I-Application
Premium	I-Application
is	O
preinstalled	O
with	O
Android	B-Application
5.1	I-Application
Lollipop	I-Application
with	O
Sony	O
's	O
custom	O
interface	O
and	O
software	O
.	O
</s>
<s>
It	O
also	O
has	O
been	O
upgraded	O
to	O
run	O
Android	B-Application
6.0	I-Application
Marshmallow	I-Application
.	O
</s>
<s>
On	O
August	O
23	O
,	O
2016	O
,	O
Sony	O
announced	O
that	O
the	O
Xperia	B-Application
Z5	I-Application
Premium	I-Application
would	O
receive	O
an	O
upgrade	O
to	O
Android	B-Application
7.0	I-Application
Nougat	I-Application
.	O
</s>
<s>
On	O
February	O
16	O
,	O
2017	O
,	O
Android	B-Application
7.0	I-Application
Nougat	I-Application
has	O
been	O
upgraded	O
for	O
the	O
Sony	B-Application
Xperia	I-Application
Z5	I-Application
Premium	I-Application
Dual	O
Sim	O
E6883	O
.	O
</s>
<s>
On	O
June	O
28	O
,	O
2017	O
,	O
it	O
started	O
to	O
roll	O
out	O
the	O
Android	B-Application
7.1.1	I-Application
Nougat	B-Application
firmware	O
update	O
.	O
</s>
