<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
iPhone	B-Operating_System
6S	I-Operating_System
Plus	I-Operating_System
(	O
stylized	O
and	O
marketed	O
as	O
iPhone	B-Operating_System
6s	I-Operating_System
and	O
iPhone	B-Operating_System
6s	I-Operating_System
Plus	I-Operating_System
)	O
are	O
smartphones	B-Application
that	O
were	O
designed	O
,	O
developed	O
,	O
and	O
marketed	O
by	O
Apple	O
Inc	O
.	O
</s>
<s>
They	O
are	O
the	O
ninth	O
generation	B-Application
of	O
the	O
iPhone	B-Application
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
6S	O
Plus	O
were	O
succeeded	O
by	O
the	O
iPhone	B-Application
7	I-Application
and	O
iPhone	B-Application
7	I-Application
Plus	I-Application
on	O
September	O
7	O
,	O
2016	O
and	O
were	O
discontinued	O
with	O
the	O
announcement	O
of	O
the	O
iPhone	B-Operating_System
XS	I-Operating_System
,	O
iPhone	B-Operating_System
XS	I-Operating_System
Max	I-Operating_System
,	O
and	O
iPhone	B-Operating_System
XR	I-Operating_System
on	O
September	O
12	O
,	O
2018	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
has	O
a	O
similar	O
design	O
to	O
the	O
iPhone	B-Operating_System
6	I-Operating_System
but	O
includes	O
updated	O
hardware	O
,	O
including	O
a	O
strengthened	O
7000	O
series	O
aluminium	O
alloy	O
chassis	O
and	O
upgraded	O
Apple	O
A9	O
system-on-chip	B-Architecture
,	O
a	O
new	O
12-megapixel	O
rear	O
camera	O
that	O
can	O
record	O
up	O
to	O
4K	B-Architecture
video	I-Architecture
at	O
30fps	O
(	O
A	O
first	O
in	O
the	O
series	O
)	O
,	O
can	O
take	O
dynamic	O
"	O
Live	O
Photos	O
"	O
,	O
the	O
first	O
increase	O
in	O
front	O
camera	O
photo	O
resolution	O
since	O
the	O
2012	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
and	O
also	O
features	O
for	O
the	O
first	O
time	O
front	O
facing	O
"	O
Retina	O
Flash	O
"	O
which	O
brightens	O
up	O
the	O
display	O
three	O
times	O
of	O
its	O
highest	O
possible	O
brightness	O
for	O
selfies	O
,	O
2nd	O
generation	B-Application
Touch	O
ID	O
fingerprint	O
recognition	O
sensor	O
,	O
LTE	O
Advanced	O
support	O
,	O
and	O
"	O
Hey	O
Siri	O
"	O
capabilities	O
without	O
needing	O
to	O
be	O
plugged	O
in	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
also	O
introduces	O
a	O
new	O
hardware	O
feature	O
known	O
as	O
"	O
3D	O
Touch	O
"	O
,	O
which	O
enables	O
pressure-sensitive	O
touch	O
inputs	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
iPhone	B-Operating_System
6S	I-Operating_System
Plus	I-Operating_System
are	O
also	O
the	O
first	O
smartphones	B-Application
to	O
use	O
the	O
fastest	O
high	O
end	O
flash	O
storage	O
NVM	B-Application
Express	I-Application
(	O
NVMe	B-Application
)	O
.	O
</s>
<s>
The	O
6S	O
and	O
6S	O
Plus	O
,	O
alongside	O
the	O
1st	O
generation	B-Application
SE	O
,	O
are	O
the	O
only	O
iPhones	B-Application
to	O
be	O
supported	O
through	O
seven	O
major	O
versions	O
of	O
iOS	O
,	O
from	O
iOS	B-Operating_System
9	I-Operating_System
to	O
iOS	B-Operating_System
15	I-Operating_System
,	O
and	O
they	O
do	O
not	O
support	O
iOS	B-Operating_System
16	I-Operating_System
due	O
to	O
hardware	O
limitations	O
.	O
</s>
<s>
Before	O
the	O
official	O
unveiling	O
,	O
several	O
aspects	O
of	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
were	O
rumored	O
,	O
including	O
the	O
base	O
model	O
having	O
16gigabytes	O
of	O
storage	O
,	O
the	O
pressure-sensitive	O
display	O
technology	O
known	O
as	O
3D	O
Touch	O
,	O
and	O
a	O
new	O
rose	O
gold	O
color	O
option	O
.	O
</s>
<s>
iPhone	B-Operating_System
6S	I-Operating_System
and	O
iPhone	B-Operating_System
6S	I-Operating_System
Plus	I-Operating_System
were	O
officially	O
unveiled	O
on	O
September	O
9	O
,	O
2015	O
,	O
during	O
a	O
press	O
event	O
at	O
the	O
Bill	O
Graham	O
Civic	O
Auditorium	O
in	O
San	O
Francisco	O
.	O
</s>
<s>
On	O
September	O
7	O
,	O
2016	O
,	O
Apple	O
announced	O
the	O
iPhone	B-Application
7	I-Application
and	O
7	O
Plus	O
as	O
respective	O
successors	O
to	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
6S	O
Plus	O
,	O
although	O
they	O
continued	O
to	O
be	O
sold	O
at	O
a	O
reduced	O
price	O
point	O
as	O
entry-level	O
options	O
in	O
the	O
iPhone	B-Application
lineup	O
.	O
</s>
<s>
On	O
March	O
31	O
,	O
2017	O
,	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
6S	O
Plus	O
were	O
released	O
in	O
Indonesia	O
alongside	O
the	O
iPhone	B-Application
7	I-Application
and	O
7	O
Plus	O
,	O
following	O
Apple	O
's	O
research	O
and	O
development	O
investment	O
in	O
the	O
country	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
,	O
iPhone	B-Operating_System
6S	I-Operating_System
Plus	I-Operating_System
,	O
and	O
first-generation	B-Operating_System
iPhone	I-Operating_System
SE	I-Operating_System
were	O
the	O
last	O
iPhone	B-Application
models	O
to	O
feature	O
a	O
standard	O
3.5mm	O
stereo	B-Device
headphone	I-Device
jack	I-Device
,	O
and	O
were	O
discontinued	O
on	O
September	O
12	O
,	O
2018	O
with	O
the	O
release	O
of	O
the	O
iPhone	B-Operating_System
XR	I-Operating_System
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
is	O
nearly	O
identical	O
in	O
design	O
to	O
the	O
iPhone	B-Operating_System
6	I-Operating_System
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
is	O
powered	O
by	O
the	O
Apple	O
A9	O
system-on-chip	B-Architecture
,	O
which	O
the	O
company	O
stated	O
is	O
up	O
to	O
70%	O
faster	O
than	O
Apple	O
A8	O
,	O
and	O
has	O
up	O
to	O
90%	O
better	O
graphics	O
performance	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
has	O
2GiB	O
of	O
RAM	B-Architecture
,	O
twice	O
as	O
much	O
as	O
any	O
previous	O
iPhone	B-Application
,	O
and	O
also	O
supports	O
LTE	O
Advanced	O
.	O
</s>
<s>
While	O
the	O
capacities	O
of	O
their	O
non-user-replaceable	O
batteries	O
are	O
slightly	O
smaller	O
(	O
1715	O
mAh	O
and	O
2750	O
mAh	O
respectively	O
)	O
,	O
Apple	O
rates	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
6S	O
Plus	O
as	O
having	O
the	O
same	O
average	O
battery	O
life	O
as	O
their	O
respective	O
predecessors	O
(	O
1810	O
mAh	O
and	O
2915	O
mAh	O
)	O
.	O
</s>
<s>
The	O
A9	O
system-on-chip	B-Architecture
was	O
dual-sourced	O
from	O
TSMC	O
and	O
Samsung	O
.	O
</s>
<s>
Although	O
the	O
device	O
was	O
not	O
promoted	O
as	O
such	O
,	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
has	O
a	O
degree	O
of	O
water	O
resistance	O
because	O
of	O
a	O
change	O
to	O
its	O
internal	O
design	O
,	O
which	O
places	O
a	O
silicone	O
seal	O
around	O
components	O
of	O
the	O
logic	B-Device
board	I-Device
and	O
an	O
adhesive	O
gasket	O
around	O
the	O
display	O
assembly	O
to	O
prevent	O
them	O
from	O
being	O
shorted	B-Application
by	O
accidental	O
exposure	O
to	O
water	O
.	O
</s>
<s>
Their	O
displays	O
are	O
the	O
same	O
sizes	O
as	O
those	O
of	O
the	O
iPhone	B-Operating_System
6	I-Operating_System
,	O
coming	O
in	O
4.7-inch	O
750p	O
and	O
5.5-inch	O
1080p	O
(	O
Plus	O
)	O
sizes	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
features	O
a	O
technology	O
known	O
as	O
3D	O
Touch	O
;	O
sensors	O
are	O
embedded	O
in	O
the	O
screen	O
's	O
backlight	O
layer	O
that	O
measure	O
the	O
firmness	O
of	O
the	O
user	O
's	O
touch	O
input	O
by	O
the	O
distance	O
between	O
it	O
and	O
the	O
cover	O
glass	O
,	O
allowing	O
the	O
device	O
to	O
distinguish	O
between	O
normal	O
and	O
more	O
forceful	O
presses	O
.	O
</s>
<s>
3D	O
Touch	O
is	O
combined	O
with	O
a	O
Taptic	O
Engine	O
vibrator	O
to	O
provide	O
associated	O
haptic	B-Device
feedback	I-Device
.	O
</s>
<s>
Although	O
similar	O
,	O
this	O
is	O
distinct	O
from	O
the	O
Force	B-Device
Touch	I-Device
technology	O
used	O
on	O
the	O
Apple	B-Device
Watch	I-Device
and	O
the	O
trackpad	O
of	O
the	O
Retina	B-Device
MacBook	I-Device
,	O
as	O
it	O
is	O
more	O
sensitive	O
and	O
can	O
recognize	O
more	O
levels	O
of	O
touch	O
pressure	O
than	O
Force	B-Device
Touch	I-Device
.	O
</s>
<s>
Due	O
to	O
the	O
hardware	O
needed	O
to	O
implement	O
3D	O
Touch	O
,	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
is	O
heavier	O
than	O
its	O
predecessor	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
6S	O
Plus	O
feature	O
a	O
12-megapixel	O
(	O
4032×3024	O
pixels	O
)	O
rear-facing	O
camera	O
,	O
an	O
upgrade	O
from	O
the	O
8-megapixel	O
(	O
3264×2448	O
)	O
unit	O
on	O
previous	O
models	O
,	O
as	O
well	O
as	O
a	O
5-megapixel	O
front-facing	O
camera	O
,	O
compared	O
to	O
1.3	O
megapixels	O
of	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
iPhone	B-Operating_System
5s	I-Operating_System
,	O
iPhone	B-Operating_System
6	I-Operating_System
,	O
6	O
Plus	O
and	O
iPhone	B-Operating_System
SE	I-Operating_System
.	O
</s>
<s>
Their	O
rear	O
camera	O
can	O
record	O
4K	B-Architecture
video	I-Architecture
(	O
3840×2160p	O
)	O
for	O
the	O
first	O
time	O
on	O
an	O
iPhone	B-Application
,	O
as	O
well	O
as	O
FullHD	O
(	O
1920×1080p	O
)	O
video	O
at	O
30	O
,	O
60	O
and	O
now	O
120	O
frames	O
per	O
second	O
,	O
the	O
latter	O
also	O
for	O
the	O
first	O
time	O
on	O
an	O
iPhone	B-Application
.	O
</s>
<s>
When	O
the	O
camera	O
takes	O
a	O
4K	B-Architecture
video	I-Architecture
recording	O
,	O
it	O
can	O
use	O
the	O
storage	O
on	O
the	O
phone	O
rapidly	O
.	O
</s>
<s>
The	O
16	O
gigabyte	O
version	O
of	O
the	O
phone	O
was	O
only	O
capable	O
of	O
holding	O
40	O
minutes	O
of	O
4K	B-Architecture
video	I-Architecture
(	O
bit	O
rate	O
:	O
6MB/s	O
or	O
48	O
Mbit/s	O
)	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
6S	O
Plus	O
were	O
originally	O
offered	O
in	O
models	O
with	O
16	O
,	O
64	O
,	O
and	O
128GB	O
(	O
14.9	O
,	O
59.6	O
or	O
119.2	O
GiB	O
)	O
of	O
internal	O
storage	O
.	O
</s>
<s>
Following	O
the	O
release	O
of	O
iPhone	B-Application
7	I-Application
in	O
September	O
2016	O
,	O
the	O
16	O
and	O
64GB	O
models	O
were	O
dropped	O
and	O
replaced	O
by	O
a	O
new	O
32GB	O
(	O
29.8	O
GiB	O
)	O
option	O
.	O
</s>
<s>
For	O
improved	O
storage	O
performance	O
,	O
iPhone	B-Operating_System
6S	I-Operating_System
utilizes	O
NVM	B-Application
Express	I-Application
(	O
NVMe	B-Application
)	O
,	O
resulting	O
in	O
a	O
maximum	O
average	O
read	O
speed	O
of	O
1,840	O
megabytes	O
per	O
second	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
originally	O
shipped	O
with	O
iOS	B-Operating_System
9	I-Operating_System
;	O
the	O
operating	O
system	O
leverages	O
the	O
3D	O
Touch	O
hardware	O
to	O
allow	O
recognition	O
of	O
new	O
gestures	O
and	O
commands	O
,	O
including	O
"	O
peeking	O
"	O
at	O
content	O
with	O
a	O
light	O
touch	O
and	O
"	O
popping	O
"	O
it	O
into	O
view	O
by	O
pressing	O
harder	O
,	O
and	O
accessing	O
context	O
menus	O
with	O
links	O
to	O
commonly	O
used	O
functions	O
within	O
apps	O
with	O
harder	O
presses	O
on	O
home	O
screen	O
icons	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
,	O
6S	O
Plus	O
,	O
and	O
first-generation	B-Operating_System
SE	I-Operating_System
support	O
iOS	O
12	O
,	O
which	O
was	O
first	O
released	O
on	O
September	O
17	O
,	O
2018	O
.	O
</s>
<s>
They	O
also	O
support	O
iOS	B-Operating_System
13	I-Operating_System
,	O
unveiled	O
on	O
June	O
3	O
,	O
2019	O
,	O
and	O
was	O
released	O
to	O
the	O
public	O
on	O
September	O
19	O
,	O
2019	O
;	O
as	O
well	O
as	O
iOS	B-Operating_System
14	I-Operating_System
,	O
unveiled	O
on	O
June	O
22	O
,	O
2020	O
and	O
iOS	B-Operating_System
15	I-Operating_System
,	O
unveiled	O
on	O
June	O
7	O
,	O
2021	O
.	O
</s>
<s>
These	O
phones	O
support	O
most	O
of	O
the	O
main	O
features	O
of	O
iOS	B-Operating_System
13	I-Operating_System
,	O
including	O
dark	O
mode	O
.	O
</s>
<s>
Along	O
with	O
the	O
iPhone	B-Operating_System
SE	I-Operating_System
,	O
the	O
6S	O
and	O
6S	O
Plus	O
are	O
the	O
oldest	O
iPhones	B-Application
to	O
support	O
iOS	B-Operating_System
13	I-Operating_System
,	O
iOS	B-Operating_System
14	I-Operating_System
and	O
iOS	B-Operating_System
15	I-Operating_System
.	O
</s>
<s>
On	O
June	O
6	O
,	O
2022	O
after	O
iOS	B-Operating_System
16	I-Operating_System
was	O
announced	O
at	O
the	O
WWDC	O
2022	O
,	O
it	O
was	O
revealed	O
that	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
6S	O
Plus	O
along	O
with	O
the	O
first-generation	B-Operating_System
iPhone	I-Operating_System
SE	I-Operating_System
,	O
iPhone	B-Application
7	I-Application
,	O
and	O
iPhone	B-Application
7	I-Application
Plus	I-Application
will	O
not	O
be	O
compatible	O
with	O
this	O
new	O
version	O
of	O
the	O
operating	O
system	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
had	O
a	O
generally	O
positive	O
reception	O
.	O
</s>
<s>
The	O
iPhone	B-Operating_System
6S	I-Operating_System
set	O
a	O
new	O
first-weekend	O
sales	O
record	O
,	O
selling	O
13million	O
models	O
,	O
up	O
from	O
10million	O
for	O
the	O
iPhone	B-Operating_System
6	I-Operating_System
in	O
the	O
previous	O
year	O
.	O
</s>
<s>
However	O
,	O
Apple	O
saw	O
its	O
first-ever	O
quarterly	O
year-over-year	O
decline	O
in	O
iPhone	B-Application
sales	O
in	O
the	O
months	O
after	O
the	O
launch	O
,	O
credited	O
to	O
a	O
saturated	O
smartphone	B-Application
market	O
in	O
Apple	O
's	O
biggest	O
countries	O
and	O
a	O
lack	O
of	O
iPhone	B-Application
purchases	O
in	O
developing	O
countries	O
.	O
</s>
<s>
Samuel	O
Gibbs	O
of	O
The	O
Guardian	O
commented	O
that	O
the	O
phone	O
"	O
has	O
the	O
potential	O
to	O
be	O
the	O
best	O
smaller	O
smartphone	B-Application
on	O
the	O
market	O
,	O
but	O
its	O
short	O
battery	O
life	O
is	O
deeply	O
frustrating	O
"	O
and	O
described	O
the	O
camera	O
as	O
"	O
not	O
leagues	O
ahead	O
of	O
the	O
competition	O
anymore	O
"	O
.	O
</s>
<s>
Ryan	O
Smith	O
and	O
Joshua	O
Ho	O
of	O
AnandTech	O
awarded	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
and	O
6S	O
Plus	O
its	O
Editors	O
 '	O
Choice	O
Gold	O
Award	O
,	O
based	O
largely	O
on	O
the	O
phone	O
's	O
performance	O
and	O
the	O
addition	O
of	O
3D	O
Touch	O
.	O
</s>
<s>
On	O
the	O
Monday	O
following	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
's	O
launch	O
weekend	O
,	O
Apple	O
announced	O
that	O
they	O
had	O
sold	O
13million	O
models	O
,	O
a	O
record-breaking	O
number	O
that	O
exceeded	O
the	O
10million	O
launch	O
sales	O
of	O
the	O
iPhone	B-Operating_System
6	I-Operating_System
in	O
2014	O
.	O
</s>
<s>
In	O
the	O
months	O
following	O
the	O
launch	O
,	O
Apple	O
saw	O
its	O
first-ever	O
quarterly	O
year-over-year	O
decline	O
in	O
iPhone	B-Application
sales	O
,	O
attributed	O
to	O
a	O
saturated	O
smartphone	B-Application
market	O
in	O
Apple	O
's	O
biggest	O
sales	O
countries	O
and	O
consumers	O
in	O
developing	O
countries	O
not	O
buying	O
iPhones	B-Application
.	O
</s>
<s>
As	O
of	O
2019	O
,	O
the	O
iPhone	B-Operating_System
6S	I-Operating_System
has	O
sold	O
over	O
174.1	O
million	O
units	O
worldwide	O
.	O
</s>
<s>
In	O
November	O
2016	O
,	O
Apple	O
announced	O
that	O
a	O
"	O
very	O
small	O
number	O
"	O
of	O
iPhone	B-Operating_System
6S	I-Operating_System
devices	O
manufactured	O
between	O
September	O
and	O
October	O
2015	O
have	O
faulty	O
batteries	O
that	O
unexpectedly	O
shut	O
down	O
.	O
</s>
