<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
(	O
stylized	O
and	O
marketed	O
as	O
iPhone	B-Operating_System
5s	I-Operating_System
)	O
is	O
a	O
smartphone	B-Application
that	O
was	O
designed	O
and	O
marketed	O
by	O
Apple	O
Inc	O
.	O
</s>
<s>
It	O
is	O
the	O
seventh	O
generation	B-Application
of	O
the	O
iPhone	B-Operating_System
,	O
succeeding	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
and	O
unveiled	O
in	O
September	O
2013	O
,	O
alongside	O
the	O
iPhone	B-Operating_System
5C	I-Operating_System
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
maintains	O
almost	O
the	O
same	O
external	O
design	O
as	O
its	O
predecessor	O
,	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
although	O
the	O
5S	B-Operating_System
received	O
a	O
new	O
white/gold	O
color	O
scheme	O
in	O
addition	O
to	O
white/silver	O
and	O
space	O
gray/black	O
.	O
</s>
<s>
The	O
5S	B-Operating_System
has	O
vastly	O
upgraded	O
internal	O
hardware	O
,	O
however	O
.	O
</s>
<s>
It	O
introduced	O
the	O
A7	O
64-bit	B-Device
dual-core	O
system-on-chip	O
,	O
the	O
first	O
64-bit	B-Device
processor	I-Device
to	O
be	O
used	O
on	O
a	O
smartphone	B-Application
,	O
accompanied	O
by	O
the	O
M7	B-Device
"	O
motion	B-Device
co-processor	I-Device
"	O
.	O
</s>
<s>
A	O
redesigned	O
home	O
button	O
with	O
Touch	O
ID	O
,	O
a	O
fingerprint	B-Algorithm
recognition	O
system	O
which	O
can	O
be	O
used	O
to	O
unlock	O
the	O
phone	O
and	O
authenticate	O
App	B-Application
Store	I-Application
and	O
iTunes	B-Operating_System
Store	O
purchases	O
,	O
was	O
also	O
introduced	O
.	O
</s>
<s>
The	O
camera	O
was	O
also	O
updated	O
with	O
a	O
larger	O
aperture	B-General_Concept
and	O
a	O
dual-LED	O
flash	O
optimized	O
for	O
different	O
color	O
temperatures	O
.	O
</s>
<s>
Earphones	O
known	O
as	O
EarPods	O
were	O
included	O
with	O
the	O
5S	B-Operating_System
,	O
and	O
Apple	O
released	O
accessories	O
including	O
a	O
case	O
and	O
a	O
dock	O
.	O
</s>
<s>
It	O
had	O
a	O
4-inch	O
display	O
,	O
similar	O
to	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
and	O
iPhone	B-Operating_System
5C	I-Operating_System
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
originally	O
shipped	O
with	O
iOS	B-Operating_System
7	I-Operating_System
,	O
which	O
introduced	O
a	O
revamped	O
visual	O
appearance	O
among	O
other	O
new	O
features	O
.	O
</s>
<s>
Designed	O
by	O
Jony	O
Ive	O
,	O
iOS	B-Operating_System
7	I-Operating_System
departed	O
from	O
skeuomorphic	O
elements	O
used	O
in	O
previous	O
versions	O
of	O
iOS	O
in	O
favor	O
of	O
a	O
flat	O
,	O
colorful	O
design	O
.	O
</s>
<s>
Among	O
new	O
software	O
features	O
introduced	O
to	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
were	O
AirDrop	B-Operating_System
,	O
an	O
ad-hoc	O
Wi-Fi	O
sharing	O
platform	O
;	O
Control	O
Center	O
,	O
a	O
control	O
panel	O
containing	O
a	O
number	O
of	O
commonly	O
used	O
functions	O
;	O
and	O
iTunes	B-Operating_System
Radio	I-Operating_System
,	O
an	O
internet	O
radio	O
service	O
.	O
</s>
<s>
The	O
5S	B-Operating_System
is	O
the	O
first	O
iPhone	B-Operating_System
to	O
be	O
supported	O
through	O
six	O
major	O
versions	O
of	O
iOS	O
,	O
from	O
iOS	B-Operating_System
7	I-Operating_System
to	O
iOS	B-Operating_System
12	I-Operating_System
,	O
along	O
with	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
the	O
first-generation	B-Operating_System
iPhone	I-Operating_System
SE	I-Operating_System
which	O
were	O
supported	O
from	O
iOS	B-Operating_System
9	I-Operating_System
to	O
iOS	B-Operating_System
15	I-Operating_System
,	O
and	O
the	O
second	O
iOS	O
device	O
to	O
support	O
six	O
major	O
updates	O
–	O
the	O
first	O
being	O
the	O
iPad	B-Operating_System
2	I-Operating_System
which	O
supported	O
iOS	O
versions	O
4	O
to	O
9	O
.	O
</s>
<s>
Reception	O
towards	O
the	O
device	O
was	O
positive	O
,	O
with	O
some	O
outlets	O
considering	O
it	O
to	O
be	O
the	O
best	O
smartphone	B-Application
available	O
on	O
the	O
market	O
due	O
to	O
its	O
upgraded	O
hardware	O
,	O
Touch	O
ID	O
,	O
and	O
other	O
changes	O
introduced	O
by	O
iOS	B-Operating_System
7	I-Operating_System
.	O
</s>
<s>
Some	O
criticized	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
for	O
keeping	O
the	O
design	O
and	O
small	O
display	O
of	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
and	O
others	O
expressed	O
security	O
concerns	O
about	O
the	O
Touch	O
ID	O
system	O
.	O
</s>
<s>
Nine	O
million	O
units	O
of	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
and	O
iPhone	B-Operating_System
5C	I-Operating_System
were	O
sold	O
on	O
the	O
weekend	O
of	O
their	O
release	O
,	O
breaking	O
Apple	O
's	O
sales	O
record	O
for	O
iPhones	B-Operating_System
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
the	O
best	O
selling	O
phone	O
on	O
all	O
major	O
U.S.	O
carriers	O
in	O
September	O
2013	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
succeeded	O
as	O
Apple	O
's	O
flagship	O
smartphone	B-Application
by	O
the	O
larger	O
iPhone	B-Operating_System
6	I-Operating_System
in	O
September	O
2014	O
.	O
</s>
<s>
On	O
March	O
21	O
,	O
2016	O
,	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
discontinued	O
following	O
the	O
release	O
of	O
the	O
iPhone	B-Operating_System
SE	I-Operating_System
,	O
which	O
incorporated	O
internal	O
hardware	O
similar	O
to	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
while	O
retaining	O
the	O
smaller	O
form	O
factor	O
and	O
design	O
of	O
the	O
5S	B-Operating_System
.	O
</s>
<s>
Before	O
its	O
official	O
unveiling	O
,	O
media	O
speculation	O
primarily	O
centered	O
on	O
reports	O
that	O
the	O
next	O
iPhone	B-Operating_System
would	O
include	O
a	O
fingerprint	B-Algorithm
scanner	O
;	O
including	O
Apple	O
's	O
2013	O
acquisition	O
of	O
AuthenTec	O
,	O
a	O
developer	O
of	O
mobile	O
security	O
products	O
,	O
references	O
to	O
a	O
fingerprint	B-Algorithm
sensor	O
on	O
the	O
home	O
button	O
in	O
the	O
beta	O
release	O
of	O
iOS	B-Operating_System
7	I-Operating_System
and	O
leaked	O
packaging	O
for	O
an	O
iPhone	B-Operating_System
5S	I-Operating_System
showing	O
that	O
the	O
traditional	O
home	O
button	O
now	O
had	O
a	O
metallic	O
"	O
ring	O
"	O
around	O
it	O
.	O
</s>
<s>
Similar	O
ring-based	O
imagery	O
was	O
seen	O
on	O
the	O
official	O
invitation	O
to	O
Apple	O
's	O
iPhone	B-Operating_System
press	O
event	O
in	O
September	O
2013	O
,	O
where	O
the	O
new	O
device	O
was	O
unveiled	O
.	O
</s>
<s>
Apple	O
announced	O
the	O
iPhone	B-Operating_System
5C	I-Operating_System
and	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
during	O
a	O
media	O
event	O
at	O
its	O
Cupertino	O
headquarters	O
on	O
September	O
10	O
,	O
2013	O
.	O
</s>
<s>
While	O
the	O
iPhone	B-Operating_System
5C	I-Operating_System
became	O
available	O
for	O
preorder	O
on	O
September	O
13	O
,	O
2013	O
,	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
not	O
available	O
for	O
preorder	O
.	O
</s>
<s>
While	O
most	O
of	O
the	O
promotion	O
focused	O
on	O
Touch	O
ID	O
,	O
the	O
64-bit	B-Device
Apple	O
A7	O
processor	O
was	O
also	O
a	O
highlight	O
during	O
the	O
event	O
.	O
</s>
<s>
Schiller	O
then	O
showed	O
demos	O
of	O
Infinity	B-Application
Blade	I-Application
III	I-Application
to	O
demonstrate	O
the	O
A7	O
's	O
processing	O
power	O
and	O
the	O
device	O
's	O
camera	O
using	O
untouched	O
photographs	O
.	O
</s>
<s>
The	O
release	O
of	O
iOS	B-Operating_System
7	I-Operating_System
on	O
September	O
18	O
,	O
2013	O
was	O
also	O
announced	O
during	O
the	O
keynote	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
released	O
on	O
September	O
20	O
,	O
2013	O
,	O
in	O
the	O
United	O
States	O
,	O
United	O
Kingdom	O
,	O
Canada	O
,	O
China	O
,	O
France	O
,	O
Germany	O
,	O
Australia	O
,	O
Japan	O
,	O
Hong	O
Kong	O
,	O
and	O
Singapore	O
.	O
</s>
<s>
Indonesia	O
was	O
the	O
last	O
country	O
to	O
receive	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
,	O
on	O
January	O
26	O
,	O
2014	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
succeeded	O
as	O
Apple	O
's	O
flagship	O
smartphone	B-Application
by	O
the	O
iPhone	B-Operating_System
6	I-Operating_System
and	O
iPhone	B-Operating_System
6	I-Operating_System
Plus	I-Operating_System
on	O
September	O
19	O
,	O
2014	O
,	O
but	O
the	O
older	O
model	O
remained	O
available	O
for	O
purchase	O
at	O
a	O
reduced	O
price	O
,	O
while	O
the	O
64GB	O
version	O
was	O
discontinued	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
discontinued	O
on	O
March	O
21	O
,	O
2016	O
,	O
and	O
succeeded	O
by	O
the	O
first-generation	B-Operating_System
iPhone	I-Operating_System
SE	I-Operating_System
,	O
which	O
continues	O
the	O
same	O
form	O
factor	O
but	O
features	O
vastly	O
upgraded	O
internals	O
similar	O
to	O
the	O
flagship	O
iPhone	B-Operating_System
6S	I-Operating_System
.	O
</s>
<s>
This	O
was	O
a	O
break	O
with	O
Apple	O
's	O
product	O
positioning	O
trend	O
(	O
in	O
North	O
America	O
and	O
Western	O
Europe	O
)	O
,	O
starting	O
with	O
iPhone	B-Operating_System
4S	I-Operating_System
released	O
in	O
October	O
2011	O
,	O
which	O
gave	O
each	O
newly	O
released	O
model	O
one	O
year	O
as	O
the	O
flagship	O
phone	O
,	O
then	O
moving	O
it	O
to	O
midrange	O
for	O
its	O
second	O
year	O
of	O
production	O
,	O
with	O
the	O
third	O
and	O
final	O
year	O
as	O
the	O
entry-level	O
offering	O
before	O
discontinuation	O
.	O
</s>
<s>
While	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
expected	O
to	O
continue	O
on	O
sale	O
until	O
September	O
2016	O
,	O
replacing	O
it	O
and	O
its	O
A7	O
processor	O
early	O
meant	O
that	O
Apple	O
"	O
just	O
reduced	O
its	O
long-term	O
chip	O
support	O
window	O
by	O
a	O
year	O
"	O
for	O
iOS	O
.	O
</s>
<s>
In	O
addition	O
,	O
a	O
new	O
iPhone	B-Operating_System
launch	O
was	O
meant	O
to	O
stimulate	O
demand	O
,	O
as	O
sales	O
of	O
iPhone	B-Operating_System
6S	I-Operating_System
and	I-Operating_System
6S	I-Operating_System
Plus	I-Operating_System
had	O
not	O
met	O
expectations	O
since	O
their	O
September	O
2015	O
release	O
and	O
the	O
iPhone	B-Operating_System
family	O
was	O
expected	O
to	O
suffer	O
its	O
first-ever	O
negative	O
growth	O
quarter	O
in	O
2016	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
maintains	O
a	O
similar	O
design	O
to	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
with	O
a	O
LCD	B-Device
multi-touch	B-Device
Retina	B-Operating_System
display	I-Operating_System
and	O
a	O
screen	O
resolution	O
of	O
640×1136	O
at	O
326	O
ppi	B-Algorithm
.	O
</s>
<s>
Its	O
home	O
button	O
has	O
been	O
updated	O
with	O
a	O
new	O
flat	O
design	O
using	O
a	O
laser-cut	O
sapphire	B-Application
cover	O
surrounded	O
by	O
a	O
metallic	O
ring	O
;	O
the	O
button	O
is	O
no	O
longer	O
concave	O
,	O
nor	O
does	O
it	O
contain	O
the	O
familiar	O
squircle	O
icon	O
seen	O
on	O
previous	O
models	O
.	O
</s>
<s>
The	O
device	O
is	O
available	O
in	O
three	O
color	O
finishes	O
;	O
"	O
space	O
gray	O
"	O
(	O
replacing	O
black	O
with	O
slate	O
trim	O
on	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
)	O
,	O
white	O
with	O
silver	O
trim	O
,	O
and	O
white	O
with	O
gold	O
trim	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
the	O
first	O
iPhone	B-Operating_System
to	O
be	O
available	O
in	O
a	O
gold	O
color	O
;	O
this	O
decision	O
was	O
influenced	O
by	O
the	O
fact	O
that	O
gold	O
is	O
seen	O
as	O
a	O
popular	O
sign	O
of	O
a	O
luxury	O
product	O
among	O
Chinese	O
customers	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
is	O
powered	O
by	O
the	O
Apple	O
A7	O
system-on-chip	O
,	O
the	O
first	O
64-bit	B-Device
processor	I-Device
ever	O
used	O
on	O
a	O
smartphone	B-Application
.	O
</s>
<s>
The	O
device	O
's	O
operating	O
system	O
and	O
pre-loaded	O
software	O
were	O
optimized	O
to	O
run	O
in	O
64-bit	B-Device
mode	O
,	O
promising	O
increased	O
performance	O
,	O
although	O
third-party	O
app	O
developers	O
would	O
need	O
to	O
optimize	O
their	O
apps	O
to	O
take	O
advantage	O
of	O
these	O
enhanced	O
capabilities	O
.	O
</s>
<s>
The	O
A7	O
processor	O
is	O
accompanied	O
by	O
the	O
M7	B-Device
"	O
motion	B-Device
co-processor	I-Device
"	O
,	O
a	O
dedicated	O
processor	O
for	O
processing	O
motion	O
data	O
from	O
the	O
iPhone	B-Operating_System
's	O
accelerometer	O
and	O
gyroscopes	B-Application
without	O
requiring	O
the	O
attention	O
of	O
the	O
main	O
processor	O
,	O
which	O
integrates	O
with	O
iOS	B-Operating_System
7	I-Operating_System
's	O
new	O
CoreMotion	O
APIs	B-General_Concept
.	O
</s>
<s>
The	O
same	O
A7	O
SoC	O
and	O
M7	B-Device
motion	B-Device
co-processor	I-Device
are	O
also	O
found	O
in	O
the	O
iPad	B-Operating_System
Air	I-Operating_System
and	O
iPad	B-Operating_System
Mini	I-Operating_System
2	I-Operating_System
,	O
both	O
of	O
which	O
were	O
released	O
in	O
the	O
same	O
quarter	O
as	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
.	O
</s>
<s>
The	O
home	O
button	O
on	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
incorporates	O
a	O
fingerprint	B-Algorithm
recognition	O
system	O
known	O
as	O
Touch	O
ID	O
,	O
based	O
on	O
technology	O
from	O
AuthenTec	O
,	O
a	O
company	O
which	O
Apple	O
had	O
acquired	O
in	O
2012	O
.	O
</s>
<s>
The	O
sensor	O
uses	O
a	O
capacitive	B-Device
CMOS-based	O
sensor	O
which	O
can	O
detect	O
the	O
"	O
sub-epidermal	O
layers	O
"	O
of	O
fingers	O
at	O
500	O
pixels	B-Algorithm
per	I-Algorithm
inch	I-Algorithm
,	O
and	O
uses	O
a	O
360-degree	O
design	O
that	O
can	O
read	O
the	O
print	O
at	O
any	O
angle	O
.	O
</s>
<s>
The	O
sensor	O
itself	O
is	O
activated	O
by	O
a	O
touch-sensitive	B-Device
metallic	O
ring	O
surrounding	O
the	O
button	O
.	O
</s>
<s>
Touch	O
ID	O
can	O
be	O
used	O
for	O
various	O
authentication	O
activities	O
within	O
the	O
operating	O
system	O
,	O
such	O
as	O
unlocking	O
the	O
device	O
or	O
authenticating	O
App	B-Application
Store	I-Application
and	O
iTunes	B-Operating_System
purchases	O
instead	O
of	O
an	O
Apple	B-General_Concept
ID	I-General_Concept
password	O
.	O
</s>
<s>
The	O
sensor	O
can	O
be	O
trained	O
to	O
recognize	O
the	O
fingerprints	B-Algorithm
of	O
multiple	O
fingers	O
and	O
multiple	O
users	O
.	O
</s>
<s>
Fingerprint	B-Algorithm
data	O
is	O
stored	O
in	O
an	O
encrypted	O
format	O
within	O
a	O
"	O
secure	O
enclave	O
"	O
of	O
the	O
A7	O
chip	O
itself	O
,	O
and	O
is	O
not	O
accessible	O
to	O
any	O
other	O
apps	O
or	O
servers	O
(	O
including	O
iCloud	B-Application
)	O
.	O
</s>
<s>
While	O
the	O
camera	O
is	O
still	O
8	O
megapixels	O
in	O
resolution	O
with	O
the	O
image	O
capture	O
size	O
of	O
3264	O
×	O
2448	O
(	O
4:3	O
)	O
,	O
the	O
lens	O
has	O
a	O
larger	O
aperture	B-General_Concept
(	O
2.2	O
,	O
compared	O
to	O
2.4	O
on	O
the	B-Operating_System
predecessor	I-Operating_System
)	O
and	O
larger	O
sized	O
pixels	B-Algorithm
in	O
its	O
image	B-Algorithm
sensor	I-Algorithm
than	O
previous	O
iPhone	B-Operating_System
models	O
.	O
</s>
<s>
The	O
flashlight	O
has	O
dual	O
"	O
True	O
Tone	O
"	O
flashes	O
,	O
consisting	O
of	O
an	O
amber	O
LED	O
and	O
a	O
white	O
LED	O
,	O
which	O
are	O
variably	O
used	O
based	O
on	O
the	O
color	O
temperature	O
of	O
the	O
photo	O
to	O
improve	O
color	B-Algorithm
balancing	I-Algorithm
.	O
</s>
<s>
The	O
camera	O
software	O
includes	O
automatic	O
digital	B-General_Concept
image	O
stabilization	O
,	O
dynamic	O
tone	B-Language
mapping	I-Language
,	O
10	O
fps	O
burst	O
mode	O
and	O
slow	O
motion	O
video	O
at	O
120	O
fps	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
's	O
camera	O
was	O
paired	O
with	O
a	O
dual-LED	O
flash	O
,	O
allowing	O
for	O
higher-quality	O
nighttime	O
photos	O
.	O
</s>
<s>
iOS	B-Operating_System
7	I-Operating_System
introduced	O
a	O
new	O
camera	O
app	O
,	O
allowing	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
to	O
capture	O
fast	O
continuous	O
shots	O
and	O
record	O
slow-motion	O
videos	O
with	O
720p	O
at	O
120	O
frames	O
per	O
second	O
and	O
an	O
audio	O
track	O
,	O
making	O
it	O
the	O
first	O
iPhone	B-Operating_System
to	O
be	O
able	O
to	O
record	O
at	O
any	O
frame	O
rate	O
beyond	O
30	O
frames	O
per	O
second	O
.	O
</s>
<s>
Earphones	O
known	O
as	O
Apple	O
EarPods	O
were	O
included	O
with	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
initially	O
supplied	O
with	O
iOS7	B-Operating_System
,	O
released	O
on	O
September	O
20	O
,	O
2013	O
.	O
</s>
<s>
Jonathan	O
Ive	O
,	O
the	O
designer	O
of	O
iOS	B-Operating_System
7	I-Operating_System
's	O
new	O
elements	O
,	O
described	O
the	O
update	O
as	O
"	O
bringing	O
order	O
to	O
complexity	O
"	O
,	O
highlighting	O
features	O
such	O
as	O
refined	O
typography	O
,	O
new	O
icons	O
,	O
translucency	O
,	O
layering	O
,	O
physics	O
,	O
and	O
gyroscope-driven	O
parallaxing	O
as	O
some	O
of	O
the	O
major	O
changes	O
to	O
the	O
design	O
.	O
</s>
<s>
The	O
design	O
of	O
both	O
iOS	B-Operating_System
7	I-Operating_System
and	O
OS	B-Device
X	I-Device
Yosemite	I-Device
(	O
version	O
10.10	O
)	O
noticeably	O
departs	O
from	O
skeuomorphic	O
elements	O
such	O
as	O
green	O
felt	O
in	O
Game	B-Operating_System
Center	I-Operating_System
,	O
wood	O
in	O
Newsstand	O
,	O
and	O
leather	O
in	O
Calendar	B-Operating_System
,	O
in	O
favor	O
of	O
flat	O
,	O
colorful	O
design	O
.	O
</s>
<s>
iOS	B-Operating_System
7	I-Operating_System
adds	O
AirDrop	B-Operating_System
,	O
an	O
ad-hoc	O
Wi-Fi	O
sharing	O
platform	O
.	O
</s>
<s>
Users	O
can	O
share	O
files	O
with	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
onwards	O
,	O
the	O
iPod	B-Operating_System
Touch	I-Operating_System
(	O
5th	O
generation	B-Application
)	O
,	O
iPad	B-Operating_System
(	O
4th	O
generation	B-Application
)	O
onwards	O
,	O
or	O
iPad	B-Device
Mini	I-Device
(	O
1st	O
generation	B-Application
)	O
onwards	O
.	O
</s>
<s>
Control	O
Center	O
contains	O
a	O
number	O
of	O
commonly	O
used	O
functions	O
,	O
such	O
as	O
volume	O
and	O
brightness	O
controls	O
,	O
along	O
with	O
toggles	O
for	O
enabling	O
Wi-Fi	O
,	O
Bluetooth	O
,	O
Airplane	B-Device
mode	I-Device
,	O
and	O
for	O
using	O
the	O
rear	O
camera	O
's	O
flash	O
LED	O
as	O
a	O
flashlight	O
.	O
</s>
<s>
iTunes	B-Operating_System
Radio	I-Operating_System
,	O
an	O
Internet	O
radio	O
service	O
,	O
was	O
also	O
included	O
on	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
.	O
</s>
<s>
It	O
was	O
a	O
free	O
,	O
ad-supported	O
service	O
available	O
to	O
all	O
iTunes	B-Operating_System
users	O
,	O
featuring	O
Siri	B-Application
integration	O
on	O
iOS	O
.	O
</s>
<s>
Users	O
were	O
able	O
to	O
skip	O
tracks	O
,	O
customize	O
stations	O
,	O
and	O
purchase	O
the	O
station	O
's	O
songs	O
from	O
the	O
iTunes	B-Operating_System
Store	O
.	O
</s>
<s>
Apple	O
announced	O
in	O
June	O
2018	O
that	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
would	O
support	O
the	O
iOS	B-Operating_System
12	I-Operating_System
update	O
.	O
</s>
<s>
This	O
made	O
it	O
the	O
second	O
longest	O
supported	O
iOS	O
device	O
,	O
having	O
supported	O
six	O
major	O
versions	O
of	O
the	O
iOS	O
operating	O
system	O
,	O
on	O
par	O
with	O
the	O
iPad	B-Operating_System
2	I-Operating_System
which	O
supported	O
iOS	B-Operating_System
4	I-Operating_System
through	O
iOS	B-Operating_System
9	I-Operating_System
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
would	O
also	O
receive	O
major	O
speed	O
boosts	O
of	O
up	O
to	O
70%	O
,	O
according	O
to	O
Apple	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
did	O
not	O
receive	O
iOS	B-Operating_System
13	I-Operating_System
,	O
released	O
in	O
September	O
2019	O
.	O
</s>
<s>
During	O
the	O
keynote	O
,	O
Apple	O
announced	O
a	O
case	O
for	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
that	O
was	O
made	O
of	O
soft	O
microfiber	O
on	O
the	O
inside	O
and	O
leather	O
on	O
the	O
outside	O
.	O
</s>
<s>
This	O
case	O
was	O
announced	O
along	O
with	O
iPhone	B-Operating_System
5C	I-Operating_System
's	O
case	O
,	O
both	O
of	O
which	O
were	O
the	O
first	O
cases	O
Apple	O
had	O
announced	O
since	O
the	O
iPhone	B-Operating_System
4	I-Operating_System
Bumpers	O
.	O
</s>
<s>
Docks	O
for	O
both	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
and	O
5C	O
were	O
found	O
on	O
the	O
Apple	O
online	O
store	O
after	O
the	O
announcement	O
.	O
</s>
<s>
Because	O
of	O
the	O
casing	O
difference	O
between	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
and	O
5C	O
,	O
they	O
have	O
separate	O
docks	O
,	O
each	O
made	O
specifically	O
for	O
each	O
respective	O
phone	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
received	O
a	O
positive	O
reception	O
from	O
reviewers	O
and	O
commentators	O
.	O
</s>
<s>
Walt	O
Mossberg	O
of	O
All	O
Things	O
Digital	B-General_Concept
gave	O
the	O
phone	O
a	O
favorable	O
review	O
,	O
saying	O
that	O
Touch	O
ID	O
"	O
sounds	O
like	O
a	O
gimmick	O
,	O
but	O
it	O
's	O
a	O
real	O
advance	O
,	O
the	O
biggest	O
step	O
ever	O
in	O
biometric	O
authentication	O
for	O
everyday	O
devices	O
,	O
"	O
and	O
labeled	O
it	O
"	O
the	O
best	O
smartphone	B-Application
on	O
the	O
market.	O
"	O
</s>
<s>
David	O
Pogue	O
of	O
The	O
New	O
York	O
Times	O
praised	O
Touch	O
ID	O
,	O
but	O
said	O
that	O
the	O
innovation	O
of	O
the	O
smartphone	B-Application
market	O
has	O
been	O
saturated	O
,	O
and	O
"	O
maybe	O
the	O
age	O
of	O
annual	O
mega-leaps	O
is	O
over.	O
"	O
</s>
<s>
He	O
focused	O
much	O
of	O
his	O
review	O
on	O
iOS	B-Operating_System
7	I-Operating_System
,	O
which	O
he	O
believed	O
was	O
the	O
biggest	O
change	O
of	O
the	O
device	O
over	O
previous	O
generations	O
,	O
praising	O
new	O
Siri	B-Application
features	O
,	O
Control	O
Center	O
,	O
and	O
AirDrop	B-Operating_System
.	O
</s>
<s>
In	O
an	O
editorial	O
,	O
Pogue	O
stated	O
that	O
iOS	B-Operating_System
7	I-Operating_System
was	O
the	O
biggest	O
change	O
in	O
the	O
iPhone	B-Operating_System
series	O
,	O
citing	O
utilitarian	O
interface	O
changes	O
as	O
the	O
main	O
contributor	O
to	O
this	O
.	O
</s>
<s>
Scott	O
Stein	O
of	O
CNET	O
criticized	O
the	O
lack	O
of	O
design	O
change	O
over	O
iPhone	B-Operating_System
5	I-Operating_System
and	O
said	O
that	O
although	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
"	O
is	O
not	O
a	O
required	O
upgrade	O
,	O
but	O
it	O
's	O
easily	O
the	O
fastest	O
and	O
most	O
advanced	O
Apple	O
smartphone	B-Application
to	O
date.	O
"	O
</s>
<s>
Although	O
praised	O
for	O
its	O
camera	O
,	O
64-bit	B-Device
A7	O
chip	O
,	O
M7	B-Device
motion-chip	O
,	O
and	O
fingerprint	B-Algorithm
scanning	O
capabilities	O
,	O
some	O
investors	O
thought	O
that	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
,	O
although	O
a	O
notable	O
improvement	O
over	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
was	O
still	O
relatively	O
unchanged	O
from	O
its	O
predecessor	O
,	O
and	O
worried	O
that	O
the	O
iPhone	B-Operating_System
line	O
had	O
become	O
a	O
stagnant	O
,	O
dull	O
product	O
.	O
</s>
<s>
Darrell	O
Etherington	O
of	O
TechCrunch	O
who	O
praised	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
as	O
the	O
best	O
smartphone	B-Application
available	O
said	O
"	O
looks	O
may	O
not	O
be	O
different	O
from	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
but	O
the	O
internal	O
components	O
have	O
a	O
dramatic	O
impact	O
on	O
day-to-day	O
activities	O
normal	O
for	O
a	O
smartphone	B-Application
user	O
,	O
"	O
and	O
went	O
into	O
detail	O
explaining	O
the	O
impact	O
of	O
the	O
improved	O
camera	O
and	O
specifications	O
on	O
the	O
phone	O
.	O
</s>
<s>
Etherington	O
suggested	O
that	O
the	O
64-bit	B-Device
A7	O
processor	O
will	O
not	O
reach	O
its	O
full	O
potential	O
until	O
developers	O
create	O
applications	O
supporting	O
it	O
.	O
</s>
<s>
Myriam	O
Joire	O
of	O
Engadget	B-Application
found	O
that	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
could	O
benefit	O
significantly	O
from	O
the	O
A7	O
if	O
developers	O
created	O
applications	O
optimized	O
for	O
the	O
64-bit	B-Device
processor	I-Device
.	O
</s>
<s>
Anand	O
Lal	O
Shimpi	O
of	O
AnandTech	O
praised	O
the	O
phone	O
's	O
A7	O
processor	O
,	O
describing	O
it	O
as	O
"	O
seriously	O
impressive	O
"	O
,	O
and	O
stated	O
that	O
it	O
was	O
the	O
most	O
"	O
futureproof	O
of	O
any	O
iPhone	B-Operating_System
ever	O
launched	O
.	O
</s>
<s>
As	O
much	O
as	O
it	O
pains	O
me	O
to	O
use	O
the	O
word	O
futureproof	O
if	O
you	O
are	O
one	O
of	O
those	O
people	O
who	O
likes	O
to	O
hold	O
onto	O
their	O
device	O
for	O
a	O
while	O
–	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
is	O
as	O
good	O
a	O
starting	O
point	O
as	O
any.	O
"	O
</s>
<s>
Scott	O
Lowe	O
of	O
IGN	O
also	O
spoke	O
highly	O
of	O
its	O
64-bit	B-Device
processor	I-Device
,	O
"	O
which	O
has	O
a	O
substantial	O
lead	O
in	O
processing	O
power	O
over	O
the	O
HTC	B-Application
One	I-Application
and	O
Samsung	B-Application
Galaxy	I-Application
S4	I-Application
,	O
accounting	O
for	O
a	O
graphics	O
boost	O
of	O
up	O
to	O
32%	O
and	O
38%	O
in	O
CPU	O
benchmarks.	O
"	O
</s>
<s>
The	O
debut	O
of	O
Apple	O
's	O
64-bit	B-Device
A7	O
processor	O
took	O
rival	O
Android	O
smartphone	B-Application
makers	O
by	O
surprise	O
,	O
particularly	O
Qualcomm	O
whose	O
own	O
64-bit	B-Device
system-on-chip	O
was	O
not	O
released	O
until	O
2015	O
.	O
</s>
<s>
Most	O
reviewers	O
recommended	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
over	O
the	O
iPhone	B-Operating_System
5C	I-Operating_System
which	O
was	O
released	O
at	O
the	O
same	O
time	O
.	O
</s>
<s>
The	O
5C	O
retained	O
almost	O
the	O
same	O
hardware	O
as	O
the	O
discontinued	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
while	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
featured	O
substantially	O
improved	O
performance/features	O
thanks	O
to	O
its	O
new	O
64-bit	B-Device
A7	O
processor	O
,	O
as	O
well	O
as	O
extra	O
storage	O
space	O
,	O
all	O
for	O
a	O
relatively	O
small	O
additional	O
upfront	O
cost	O
over	O
the	O
iPhone	B-Operating_System
5C	I-Operating_System
(	O
US$650	O
versus	O
US$550	O
in	O
March	O
2014	O
)	O
.	O
</s>
<s>
This	O
was	O
especially	O
the	O
case	O
when	O
iOS	O
8	O
was	O
released	O
and	O
both	O
iPhone	B-Operating_System
5S	I-Operating_System
and	O
iPhone	B-Operating_System
5C	I-Operating_System
were	O
moved	O
to	O
the	O
mid	O
and	O
low	O
end	O
of	O
the	O
iPhone	B-Operating_System
range	O
,	O
respectively	O
;	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
still	O
had	O
16	O
or	O
32GB	O
(	O
14.9	O
or	O
29.8	O
GiB	O
)	O
storage	O
available	O
while	O
the	O
iPhone	B-Operating_System
5C	I-Operating_System
had	O
to	O
make	O
do	O
with	O
8GB	O
storage	O
with	O
only	O
4.9GB	O
available	O
to	O
the	O
user	O
after	O
installing	O
iOS	O
8	O
.	O
</s>
<s>
Furthermore	O
,	O
the	O
5C	O
's	O
polycarbonate	O
exterior	O
received	O
a	O
mixed	O
reception	O
and	O
was	O
seen	O
as	O
a	O
cost-cutting	O
downgrade	O
compared	O
to	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
's	O
aluminum/glass	O
case	O
;	O
the	O
5S	B-Operating_System
retained	O
the	O
latter	O
design	O
and	O
looked	O
even	O
more	O
premium	O
due	O
to	O
its	O
additional	O
gold	O
finish	O
.	O
</s>
<s>
As	O
of	O
2015	O
–	O
16	O
,	O
there	O
were	O
still	O
a	O
significant	O
number	O
of	O
customers	O
who	O
preferred	O
the	O
4-inch	O
screen	O
size	O
of	O
iPhone	B-Operating_System
5S	I-Operating_System
,	O
which	O
remained	O
the	O
second-most	O
popular	O
iPhone	B-Operating_System
after	O
the	O
iPhone	B-Operating_System
6	I-Operating_System
and	O
ahead	O
of	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
.	O
</s>
<s>
Apple	O
stated	O
in	O
their	O
event	O
that	O
they	O
sold	O
30	O
million	O
4-inch	O
iPhones	B-Operating_System
in	O
2015	O
,	O
even	O
as	O
that	O
form	O
factor	O
was	O
succeeded	O
as	O
the	O
flagship	O
iPhone	B-Operating_System
by	O
the	O
redesigned	O
larger	O
display	O
4.7/5.5	O
-inch	O
iPhone	B-Operating_System
6	I-Operating_System
and	I-Operating_System
6	I-Operating_System
Plus	I-Operating_System
back	O
in	O
September	O
2014	O
.	O
</s>
<s>
Furthermore	O
,	O
the	O
5/5S	O
design	O
was	O
regarded	O
as	O
"	O
long	O
been	O
the	O
golden	O
child	O
of	O
Apple	O
phone	O
design	O
and	O
a	O
benchmark	O
for	O
phones	O
in	O
general	O
"	O
(	O
with	O
the	O
5S	B-Operating_System
's	O
gold	O
finish	O
adding	O
a	O
premium	O
touch	O
to	O
the	O
5	O
's	O
already	O
well-regarded	O
look	O
)	O
,	O
while	O
the	O
succeeding	O
6	O
and	O
6S	O
design	O
was	O
less	O
critically	O
acclaimed	O
as	O
it	O
"	O
felt	O
a	O
little	O
bit	O
wrong	O
,	O
as	O
though	O
you	O
were	O
holding	O
a	O
slick	O
$650	O
bar	O
of	O
soap	O
"	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5	I-Operating_System
was	O
described	O
as	O
"	O
elegance	O
rooted	O
in	O
the	O
way	O
the	O
aluminum	O
and	O
glass	O
work	O
together	O
.	O
</s>
<s>
It	O
felt	O
streamlined	O
,	O
yet	O
substantial	O
,	O
which	O
is	O
different	O
from	O
iPhone	B-Operating_System
6	I-Operating_System
,	O
which	O
feels	O
substantial	O
in	O
size	O
alone	O
.	O
</s>
<s>
Plus	O
,	O
unlike	O
the	O
ubiquitous	O
rounded	O
corners	O
of	O
the	O
6	O
,	O
iPhone	B-Operating_System
5	I-Operating_System
did	O
n't	O
really	O
look	O
like	O
anything	O
else	O
on	O
the	O
market	O
at	O
the	O
time	O
"	O
.	O
</s>
<s>
However	O
,	O
the	O
iPhone	O
5/5S	O
design	O
was	O
not	O
suited	O
to	O
scaling	O
up	O
,	O
in	O
contrast	O
to	O
the	O
iPhone	O
6/6S	O
which	O
could	O
better	O
accommodate	O
the	O
growing	O
consumer	O
trend	O
towards	O
larger	O
screen	O
sizes	O
and	O
indeed	O
spawned	O
the	O
6/6S	O
Plus	O
phablet	B-Application
models	O
.	O
</s>
<s>
When	O
Apple	O
discontinued	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
,	O
it	O
was	O
replaced	O
by	O
the	O
first-generation	B-Operating_System
iPhone	I-Operating_System
SE	I-Operating_System
which	O
outwardly	O
appears	O
almost	O
identical	O
to	O
the	O
5S	B-Operating_System
even	O
as	O
the	O
SE	O
's	O
internal	O
hardware	O
has	O
been	O
upgraded	O
significantly	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
and	O
5C	O
sold	O
over	O
nine	O
million	O
units	O
in	O
the	O
first	O
three	O
days	O
,	O
setting	O
a	O
record	O
for	O
first	O
weekend	O
smartphone	B-Application
sales	O
,	O
with	O
the	O
5S	B-Operating_System
selling	O
three	O
times	O
more	O
units	O
than	O
the	O
5C	O
.	O
</s>
<s>
After	O
the	O
first	O
day	O
of	O
release	O
,	O
1%	O
of	O
all	O
iPhones	B-Operating_System
in	O
the	O
US	O
were	O
iPhone	B-Operating_System
5Ss	O
,	O
while	O
0.3	O
%	O
were	O
iPhone	B-Operating_System
5Cs	I-Operating_System
.	O
</s>
<s>
Gene	O
Munster	O
of	O
Piper	O
Jaffray	O
reported	O
that	O
the	O
line	O
at	O
the	O
Fifth	O
Avenue	O
Apple	O
Store	O
contained	O
1,417	O
people	O
on	O
release	O
day	O
,	O
compared	O
to	O
1,300	O
for	O
the	O
iPhone	B-Operating_System
4	I-Operating_System
in	O
2010	O
,	O
and	O
549	O
for	O
the	O
iPhone	B-Operating_System
3G	I-Operating_System
in	O
2008	O
on	O
their	O
respective	O
release	O
days	O
.	O
</s>
<s>
On	O
launch	O
day	O
,	O
major	O
in-stock	O
shortages	O
were	O
reported	O
in	O
most	O
stores	O
,	O
across	O
all	O
countries	O
where	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
initially	O
went	O
on	O
sale	O
.	O
</s>
<s>
A	O
great	O
many	O
customers	O
in	O
line	O
outside	O
Apple	O
Stores	O
worldwide	O
were	O
left	O
disappointed	O
due	O
to	O
severe	O
shortages	O
across	O
all	O
5S	B-Operating_System
models	O
,	O
with	O
the	O
gold	O
model	O
in	O
particular	O
being	O
in	O
highly	O
limited	O
supply	O
.	O
</s>
<s>
Some	O
commentators	O
questioned	O
how	O
Apple	O
handled	O
the	O
initial	O
release	O
,	O
as	O
online	O
pre-orders	O
were	O
not	O
offered	O
for	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
,	O
meaning	O
large	O
numbers	O
of	O
people	O
queuing	O
outside	O
physical	O
stores	O
,	O
with	O
most	O
in	O
line	O
not	O
receiving	O
a	O
unit	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
5S	I-Operating_System
was	O
the	O
best	O
selling	O
phone	O
on	O
AT&T	O
,	O
Sprint	O
,	O
Verizon	B-Application
,	O
and	O
T-Mobile	O
in	O
September	O
2013	O
in	O
the	O
United	O
States	O
,	O
outselling	O
the	O
iPhone	B-Operating_System
5C	I-Operating_System
and	O
Samsung	B-Application
Galaxy	I-Application
S4	I-Application
.	O
</s>
<s>
According	O
to	O
Consumer	O
Intelligence	O
Research	O
Partners	O
,	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
outsold	O
the	O
5C	O
by	O
a	O
two-to-one	O
margin	O
during	O
its	O
September	O
release	O
,	O
confirming	O
Apple	O
CEO	O
Tim	O
Cook	O
's	O
view	O
that	O
the	O
high-end	O
smartphone	B-Application
market	O
was	O
not	O
reaching	O
a	O
point	O
of	O
market	O
saturation	O
.	O
</s>
<s>
While	O
commentators	O
viewed	O
the	O
5C	O
as	O
a	O
flop	O
because	O
of	O
supply	O
chain	O
cuts	O
signifying	O
a	O
decline	O
in	O
demand	O
,	O
the	O
5S	B-Operating_System
was	O
viewed	O
as	O
a	O
massive	O
success	O
.	O
</s>
<s>
Apple	O
admitted	O
that	O
it	O
had	O
failed	O
to	O
anticipate	O
the	O
sales	O
ratio	O
,	O
leading	O
to	O
an	O
overstocking	O
of	O
the	O
5C	O
and	O
shortages	O
of	O
the	O
5S	B-Operating_System
.	O
</s>
<s>
Six	O
months	O
after	O
the	O
release	O
of	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
,	O
on	O
March	O
25	O
,	O
2014	O
,	O
Apple	O
announced	O
that	O
sales	O
of	O
the	O
iPhone	B-Operating_System
brand	O
had	O
exceeded	O
500	O
million	O
units	O
.	O
</s>
<s>
By	O
May	O
2014	O
,	O
despite	O
having	O
been	O
on	O
the	O
market	O
for	O
eight	O
months	O
,	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
reportedly	O
outsold	O
the	O
newly	O
released	O
Samsung	B-Application
Galaxy	I-Application
S5	I-Application
by	O
40%	O
,	O
with	O
7	O
million	O
iPhone	B-Operating_System
5S	I-Operating_System
units	O
versus	O
5	O
million	O
Galaxy	B-Application
S5	I-Application
units	O
.	O
</s>
<s>
The	O
Galaxy	B-Application
S5	I-Application
's	O
failure	O
to	O
oust	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
from	O
the	O
top-selling	O
spot	O
was	O
a	O
major	O
setback	O
for	O
Samsung	O
Mobile	O
,	O
as	O
the	O
preceding	O
Samsung	B-Application
Galaxy	I-Application
SIII	I-Application
and	O
Samsung	B-Application
Galaxy	I-Application
S4	I-Application
,	O
in	O
the	O
first	O
quarter	O
of	O
their	O
releases	O
,	O
had	O
outsold	O
the	O
iPhone	B-Operating_System
4S	I-Operating_System
and	O
iPhone	B-Operating_System
5	I-Operating_System
respectively	O
.	O
</s>
<s>
A	O
number	O
of	O
technology	O
writers	O
,	O
including	O
Adrian	O
Kingsley-Hughes	O
of	O
ZDNet	O
and	O
Kevin	O
Roose	O
of	O
New	O
York	O
believed	O
that	O
the	O
fingerprint	B-Algorithm
scanning	O
functionality	O
of	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
could	O
help	O
spur	O
the	O
adoption	O
of	O
the	O
technology	O
as	O
an	O
alternative	O
to	O
passwords	O
by	O
mainstream	O
users	O
(	O
especially	O
in	O
"	O
bring	O
your	O
own	O
device	O
"	O
scenarios	O
)	O
,	O
as	O
fingerprint-based	O
authentication	O
systems	O
have	O
only	O
enjoyed	O
wider	O
usage	O
in	O
enterprise	O
environments	O
.	O
</s>
<s>
However	O
,	O
citing	O
research	O
by	O
biometrics	O
engineer	O
Geppy	O
Parziale	O
,	O
Roose	O
suggested	O
that	O
the	O
CMOS-based	O
sensor	O
could	O
become	O
inaccurate	O
and	O
wear	O
out	O
over	O
time	O
unless	O
Apple	O
had	O
designed	O
the	O
sensor	O
to	O
prevent	O
this	O
from	O
occurring	O
.	O
</s>
<s>
Brent	O
Kennedy	O
,	O
a	O
researcher	O
of	O
the	O
United	O
States	O
Computer	O
Emergency	O
Readiness	O
Team	O
,	O
recommended	O
that	O
users	O
not	O
immediately	O
rely	O
on	O
the	O
technology	O
,	O
citing	O
the	O
uncertainty	O
over	O
whether	O
the	O
system	O
could	O
properly	O
reject	O
a	O
spoofed	O
fingerprint	B-Algorithm
.	O
</s>
<s>
Following	O
the	O
release	O
of	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
,	O
the	O
German	O
Chaos	O
Computer	O
Club	O
announced	O
on	O
September	O
21	O
,	O
2013	O
that	O
they	O
had	O
bypassed	O
Apple	O
's	O
new	O
Touch	O
ID	O
fingerprint	B-Algorithm
sensor	O
by	O
using	O
"	O
easy	O
everyday	O
means	O
"	O
.	O
</s>
<s>
The	O
group	O
explained	O
that	O
the	O
security	O
system	O
had	O
been	O
defeated	O
by	O
photographing	O
a	O
fingerprint	B-Algorithm
from	O
a	O
glass	O
surface	O
and	O
using	O
that	O
captured	O
image	O
to	O
make	O
a	O
latex	O
model	O
thumb	O
which	O
was	O
then	O
pressed	O
against	O
the	O
sensor	O
to	O
gain	O
access	O
.	O
</s>
<s>
The	O
spokesman	O
for	O
the	O
group	O
stated	O
,	O
"	O
We	O
hope	O
that	O
this	O
finally	O
puts	O
to	O
rest	O
the	O
illusions	O
people	O
have	O
about	O
fingerprint	B-Algorithm
biometrics	O
.	O
</s>
<s>
However	O
,	O
in	O
2013	O
,	O
39%	O
of	O
American	O
smartphone	B-Application
users	O
used	O
no	O
security	O
measures	O
at	O
all	O
to	O
protect	O
their	O
smartphone	B-Application
.	O
</s>
<s>
Others	O
have	O
also	O
tried	O
Chaos	O
Computer	O
Club	O
's	O
method	O
,	O
but	O
concluded	O
that	O
it	O
is	O
not	O
an	O
easy	O
process	O
in	O
either	O
time	O
or	O
effort	O
,	O
given	O
that	O
the	O
user	O
has	O
to	O
use	O
a	O
high	B-Algorithm
resolution	I-Algorithm
photocopy	O
of	O
a	O
complete	O
fingerprint	B-Algorithm
,	O
special	O
chemicals	O
and	O
expensive	O
equipment	O
,	O
and	O
because	O
the	O
spoofing	O
process	O
takes	O
some	O
time	O
to	O
achieve	O
.	O
</s>
<s>
Several	O
problems	O
were	O
experienced	O
with	O
the	O
iPhone	B-Operating_System
5S	I-Operating_System
's	O
hardware	O
after	O
its	O
release	O
.	O
</s>
<s>
The	O
most	O
widely	O
reported	O
issue	O
is	O
that	O
the	O
angle	O
reported	O
by	O
the	O
phone	O
's	O
level	O
sensor	O
had	O
drifted	O
by	O
several	O
degrees	O
,	O
which	O
caused	O
the	O
gyroscope	B-Application
,	O
compass	O
,	O
and	O
accelerometer	O
to	O
become	O
inaccurate	O
.	O
</s>
<s>
Some	O
encountered	O
other	O
problems	O
such	O
as	O
crashing	O
with	O
a	O
blue	O
screen	O
and	O
then	O
restarting	O
,	O
the	O
power	O
button	O
making	O
a	O
rattling	O
noise	O
when	O
the	O
phone	O
was	O
shaken	O
,	O
overheating	O
,	O
the	O
microphone	B-Application
not	O
working	O
,	O
and	O
Touch	O
ID	O
not	O
working	O
for	O
iTunes	B-Operating_System
purchases	O
.	O
</s>
