<s>
The	O
Samsung	B-Application
Galaxy	I-Application
S9	I-Application
and	O
S9+	B-Application
are	O
Android-based	O
smartphones	B-Application
unveiled	O
,	O
manufactured	O
,	O
released	O
and	O
marketed	O
by	O
Samsung	B-Application
Electronics	O
as	O
part	O
of	O
the	O
Samsung	B-Application
Galaxy	I-Application
S	I-Application
series	I-Application
.	O
</s>
<s>
The	O
devices	O
were	O
revealed	O
at	O
the	O
Mobile	O
World	O
Congress	O
in	O
Barcelona	O
on	O
25	O
February	O
2018	O
,	O
as	O
the	O
successors	O
to	O
the	O
Samsung	B-Application
Galaxy	I-Application
S8	I-Application
and	O
S8+	O
.	O
</s>
<s>
The	O
Galaxy	B-Application
S9	I-Application
and	O
S9+	B-Application
have	O
nearly	O
identical	O
features	O
to	O
the	O
S8	O
models	O
,	O
with	O
the	O
same	O
display	O
sizes	O
and	O
aspect	B-Device
ratio	I-Device
as	O
their	B-Application
predecessors	I-Application
.	O
</s>
<s>
It	O
was	O
succeeded	O
by	O
the	O
Samsung	B-Application
Galaxy	I-Application
S10	I-Application
in	O
March	O
2019	O
.	O
</s>
<s>
Many	O
Galaxy	B-Application
S9	I-Application
features	O
and	O
design	O
changes	O
were	O
leaked	O
weeks	O
before	O
the	O
official	O
launch	O
,	O
and	O
the	O
official	O
launch	O
video	O
was	O
leaked	O
a	O
few	O
hours	O
prior	O
to	O
the	O
unveiling	O
.	O
</s>
<s>
On	O
the	O
front	O
,	O
the	O
Galaxy	B-Application
S9	I-Application
and	O
S9+	B-Application
look	O
identical	O
to	O
the	O
S8	O
and	O
S8+	O
.	O
</s>
<s>
They	O
both	O
feature	O
1440p	O
Super	O
AMOLED	B-Algorithm
displays	I-Algorithm
,	O
with	O
an	O
18.5:9	O
aspect	B-Device
ratio	I-Device
.	O
</s>
<s>
The	O
S9	O
has	O
a	O
5.8-inch	O
panel	O
,	O
while	O
the	O
S9+	B-Application
uses	O
a	O
larger	O
6.2-inch	O
panel	O
.	O
</s>
<s>
The	O
S9+	B-Application
has	O
a	O
dual-lens	O
camera	O
setup	O
on	O
the	O
back	O
,	O
like	O
on	O
the	O
Galaxy	B-Application
Note	I-Application
8	I-Application
,	O
while	O
the	O
S9	O
only	O
has	O
a	O
single	O
camera	O
on	O
the	O
back	O
.	O
</s>
<s>
The	O
Exynos	O
variants	O
of	O
the	O
phones	O
received	O
Samsung	B-Application
's	O
in-house	O
ISOCELL	B-Architecture
S5K2L3	O
camera	O
sensor	O
whereas	O
the	O
Snapdragon	B-Architecture
variant	O
made	O
use	O
of	O
Sony	O
's	O
Exmor	B-Device
IMX345	O
counterpart	O
.	O
</s>
<s>
Both	O
phones	O
have	O
a	O
Dual	O
Aperture	B-General_Concept
rear	O
camera	O
which	O
can	O
switch	O
between	O
1.5	O
and	O
2.4	O
,	O
depending	O
on	O
lighting	O
conditions	O
,	O
making	O
it	O
the	O
first	O
mobile	O
phone	O
since	O
the	O
Nokia	B-Language
N86	I-Language
(	O
2009	O
)	O
with	O
a	O
variable	O
aperture	B-General_Concept
camera	O
.	O
</s>
<s>
The	O
phones	O
can	O
record	O
video	O
with	O
4K	B-Architecture
(	O
2160p	O
)	O
at	O
60	O
frames	O
per	O
second	O
(	O
limited	O
to	O
5	O
minutes	O
)	O
,	O
1080p	O
at	O
240	O
frames	O
per	O
second	O
and	O
960	O
frames	O
per	O
second	O
"	O
Super	O
Slo-Motion	O
"	O
video	O
at	O
720p	O
for	O
0.2	O
seconds	O
,	O
all	O
three	O
of	O
which	O
have	O
been	O
featured	O
on	O
any	O
Samsung	B-Application
flagship	O
phone	O
for	O
the	O
first	O
time	O
.	O
</s>
<s>
The	O
first	O
two	O
frame	O
rates	O
are	O
the	O
first	O
increase	O
in	O
the	O
series	O
since	O
the	O
2014	O
Samsung	B-Application
Galaxy	I-Application
S5	I-Application
.	O
</s>
<s>
AR	O
Emoji	O
,	O
similar	O
to	O
Apple	O
's	O
Animoji	O
feature	O
on	O
the	O
iPhone	B-Operating_System
X	I-Operating_System
,	O
is	O
a	O
new	O
feature	O
that	O
lets	O
the	O
user	O
make	O
emojis	O
based	O
on	O
themselves	O
with	O
the	O
help	O
of	O
augmented	B-General_Concept
reality	I-General_Concept
face	O
recognition	O
.	O
</s>
<s>
A	O
software	O
update	O
retrofitted	O
the	O
Galaxy	B-Application
Note	I-Application
9	I-Application
feature	O
of	O
warning	O
the	O
user	O
about	O
flaws	O
in	O
photos	O
such	O
as	O
blinking	O
eyes	O
and	O
blur	O
.	O
</s>
<s>
In	O
most	O
countries	O
,	O
the	O
S9	O
and	O
S9+	B-Application
both	O
come	O
with	O
a	O
Samsung	B-Application
Exynos	O
9810	O
SoC	O
.	O
</s>
<s>
Versions	O
sold	O
in	O
the	O
United	O
States	O
,	O
Canada	O
,	O
China	O
,	O
Hong	O
Kong	O
,	O
Japan	O
,	O
and	O
Latin	O
America	O
come	O
with	O
the	O
Qualcomm	B-Architecture
Snapdragon	I-Architecture
845	O
SoC	O
instead	O
.	O
</s>
<s>
The	O
S9	O
comes	O
with	O
4GB	O
of	O
RAM	B-Architecture
,	O
while	O
the	O
S9+	B-Application
comes	O
with	O
6GB	O
.	O
</s>
<s>
Both	O
devices	O
came	O
initially	O
only	O
with	O
64GB	O
of	O
internal	O
storage	O
;	O
variants	O
with	O
128	O
and	O
256GB	O
were	O
released	O
in	O
May	O
2018	O
,	O
after	O
the	O
internal	O
storage	O
of	O
64GB	O
was	O
criticized	O
by	O
many	O
as	O
being	O
too	O
low	O
,	O
but	O
they	O
can	O
only	O
be	O
ordered	O
via	O
Samsung	B-Application
's	O
website	O
.	O
</s>
<s>
The	O
battery	O
capacities	O
are	O
the	O
same	O
as	O
their	B-Application
predecessors	I-Application
,	O
namely	O
3000	O
mAh	O
for	O
the	O
S9	O
,	O
and	O
3500	O
mAh	O
for	O
the	O
S9+	B-Application
.	O
</s>
<s>
Just	O
like	O
its	O
predecessor	O
,	O
the	O
S9	O
supports	O
AirFuel	O
Inductive	O
(	O
formerly	O
PMA	O
)	O
and	O
Wireless	O
Power	O
Consortium	O
's	O
Qi	O
wireless	B-Application
charging	I-Application
standards	O
.	O
</s>
<s>
Wired	O
charging	O
allows	O
for	O
rates	O
up	O
to	O
15	O
watts	O
via	O
Qualcomm	O
Quick	O
Charge	O
2.0	O
,	O
while	O
wireless	B-Application
charging	I-Application
is	O
possible	O
with	O
rates	O
up	O
to	O
10	O
watts	O
.	O
</s>
<s>
The	O
S9	O
and	O
S9+	B-Application
have	O
stereo	O
speakers	O
tuned	O
by	O
AKG	O
,	O
as	O
well	O
as	O
Dolby	O
Atmos	O
surround	O
sound	O
support	O
;	O
furthermore	O
,	O
the	O
S9	O
and	O
S9+	B-Application
are	O
two	O
of	O
the	O
few	O
smartphones	B-Application
that	O
still	O
retain	O
the	O
3.5mm	O
headphone	B-Device
jack	I-Device
.	O
</s>
<s>
Where	O
the	O
S9	O
and	O
S9+	B-Application
have	O
the	O
most	O
noticeable	O
change	O
from	O
the	O
S8	O
line	O
is	O
on	O
the	O
back	O
of	O
the	O
phone	O
.	O
</s>
<s>
The	O
fingerprint	O
sensor	O
has	O
been	O
moved	O
from	O
the	O
right	O
of	O
the	O
camera	O
to	O
a	O
more	O
centralized	O
location	O
just	O
below	O
the	O
camera	O
like	O
on	O
the	O
Galaxy	B-Application
A8	I-Application
and	I-Application
A8+	I-Application
for	O
convenience	O
.	O
</s>
<s>
The	O
S9	O
and	O
S9+	B-Application
ship	O
with	O
Android	B-Application
8.0	I-Application
"	I-Application
Oreo	I-Application
"	I-Application
,	O
with	O
Google	B-Application
Mobile	I-Application
Services	I-Application
and	O
the	O
Samsung	B-Application
Experience	I-Application
user	O
interface	O
and	O
software	O
suite	O
.	O
</s>
<s>
It	O
is	O
mainly	O
unchanged	O
over	O
the	O
versions	O
found	O
on	O
the	O
S8	O
and	O
Note	B-Application
8	I-Application
,	O
but	O
adds	O
additional	O
features	O
such	O
as	O
new	O
customization	O
options	O
,	O
live	O
language	O
translation	O
in	O
the	O
camera	O
app	O
,	O
and	O
landscape	O
(	O
horizontal	O
)	O
orientation	O
support	O
for	O
the	O
Samsung	B-Application
home	O
screen	O
,	O
a	O
lack	O
of	O
which	O
the	O
Galaxy	B-Application
S3	I-Application
has	O
been	O
criticized	O
for	O
,	O
including	O
by	O
Evan	O
Blass	O
,	O
in	O
2012	O
.	O
</s>
<s>
The	O
S9	O
and	O
S9+	B-Application
also	O
support	O
Project	O
Treble	O
,	O
making	O
it	O
easier	O
to	O
update	O
than	O
previous	O
generations	O
of	O
Galaxy	B-Operating_System
Devices	I-Operating_System
.	O
</s>
<s>
In	O
December	O
2018	O
,	O
Samsung	B-Application
began	O
to	O
release	O
Android	B-Application
9.0	I-Application
"	I-Application
Pie	I-Application
"	I-Application
for	O
the	O
S9	O
.	O
</s>
<s>
This	O
update	O
introduces	O
a	O
major	O
revamp	O
of	O
Samsung	B-Application
's	O
Android	B-Application
user	O
experience	O
known	O
as	O
One	B-Application
UI	I-Application
.	O
</s>
<s>
A	O
main	O
design	O
element	O
of	O
One	B-Application
UI	I-Application
is	O
intentional	O
repositioning	O
of	O
key	O
user	O
interface	O
elements	O
in	O
stock	O
apps	O
to	O
improve	O
usability	O
on	O
large	O
screens	O
:	O
many	O
apps	O
include	O
large	O
headers	O
that	O
push	O
the	O
beginning	O
of	O
content	O
towards	O
the	O
center	O
of	O
the	O
display	O
,	O
while	O
navigation	O
controls	O
and	O
other	O
prompts	O
are	O
often	O
displayed	O
near	O
the	O
bottom	O
of	O
the	O
display	O
instead	O
.	O
</s>
<s>
As	O
of	O
May	O
2021	O
,	O
the	O
S9	O
also	O
supports	O
updating	O
to	O
Android	B-Application
10	I-Application
.	O
</s>
<s>
In	O
mid-2018	O
,	O
Samsung	B-Application
published	O
a	O
series	O
of	O
mockery	O
commercials	O
named	O
"	O
Ingenius	O
"	O
against	O
iPhones	B-Device
 '	O
lack	O
of	O
the	O
Galaxy	B-Application
S9	I-Application
's	O
functionality	O
,	O
including	O
an	O
audio	B-Device
connector	I-Device
,	O
memory	B-Device
card	I-Device
expandable	O
storage	O
,	O
as	O
well	O
as	O
allegedly	O
inferior	O
network	O
transfer	O
rates	O
and	O
camera	O
performance	O
.	O
</s>
<s>
In	O
one	O
of	O
those	O
commercials	O
,	O
an	O
unhappy	O
customer	O
failed	O
to	O
locate	O
a	O
memory	B-Device
card	I-Device
slot	I-Device
on	O
her	O
iPhone	B-Device
,	O
to	O
which	O
the	O
Apple	O
Store	O
employee	O
told	O
her	O
that	O
the	O
device	O
lacks	O
such	O
,	O
and	O
suggested	O
her	O
in	O
one	O
word	O
to	O
rely	O
on	O
cloud	O
storage	O
as	O
storage	O
expansion	O
instead	O
,	O
even	O
though	O
it	O
depends	O
on	O
Internet	O
access	O
to	O
function	O
and	O
has	O
slow	O
transfer	O
rates	O
and	O
high	O
latency	B-Protocol
compared	O
to	O
memory	B-Device
cards	I-Device
.	O
</s>
<s>
John	O
McCann	O
from	O
TechRadar	O
complimented	O
the	O
improved	O
camera	O
and	O
the	O
new	O
location	O
of	O
the	O
fingerprint	O
sensor	O
,	O
but	O
criticized	O
that	O
it	O
was	O
too	O
similar	O
to	O
its	O
predecessor	O
(	O
Galaxy	B-Application
S8	I-Application
)	O
and	O
had	O
limited	O
AR	O
Emoji	O
functionality	O
.	O
</s>
<s>
Brian	O
Heater	O
of	O
TechCrunch	O
reviewed	O
the	O
S9+	B-Application
on	O
8	O
March	O
2018	O
,	O
and	O
said	O
that	O
the	O
phone	O
is	O
built	O
on	O
the	O
"	O
success	O
[	O
of	O
the	O
S8 ]	O
in	O
a	O
number	O
of	O
ways	O
"	O
.	O
</s>
<s>
PC	O
Magazine	O
also	O
gave	O
the	O
Galaxy	B-Application
S9	I-Application
and	O
S9+	B-Application
positive	O
reviews	O
.	O
</s>
<s>
CNBC	O
's	O
Todd	O
Haselton	O
said	O
on	O
8	O
March	O
that	O
the	O
S9+	B-Application
was	O
superior	O
to	O
the	O
S9	O
,	O
for	O
reasons	O
such	O
as	O
the	O
larger	O
screen	O
and	O
second	O
camera	O
,	O
as	O
well	O
as	O
more	O
RAM	B-Architecture
and	O
battery	O
power	O
.	O
</s>
<s>
Samuel	O
Gibbs	O
from	O
The	O
Guardian	O
gave	O
the	O
S9+	B-Application
5/5	O
stars	O
,	O
with	O
the	O
headline	O
it	O
was	O
"	O
the	O
best	O
big-screen	O
smartphone	B-Application
by	O
miles	O
"	O
.	O
</s>
<s>
He	O
also	O
appreciated	O
the	O
inclusion	O
of	O
a	O
headphone	B-Device
jack	I-Device
,	O
despite	O
many	O
other	O
phones	O
not	O
having	O
one	O
.	O
</s>
<s>
The	O
larger	O
S9+'s	O
camera	O
received	O
a	O
score	O
of	O
99	O
from	O
DxOMark	B-Algorithm
,	O
which	O
,	O
at	O
the	O
time	O
was	O
the	O
highest	O
score	O
awarded	O
by	O
them	O
to	O
a	O
mobile	O
device	O
camera	O
.	O
</s>
<s>
It	O
was	O
soon	O
surpassed	O
by	O
the	O
Huawei	B-Application
P20	I-Application
and	O
P20	B-Application
Pro	I-Application
,	O
which	O
scored	O
102	O
and	O
109	O
respectively	O
.	O
</s>
<s>
However	O
,	O
he	O
was	O
not	O
amused	O
by	O
the	O
average	O
battery	O
life	O
and	O
the	O
addition	O
of	O
Bixby	B-Application
,	O
also	O
saying	O
that	O
Samsung	B-Application
has	O
a	O
poor	O
history	O
of	O
updating	O
their	O
smartphones	B-Application
.	O
</s>
<s>
Samsung	B-Application
has	O
described	O
the	O
sales	O
of	O
the	O
Galaxy	B-Application
S9	I-Application
as	O
"	O
slow	O
"	O
in	O
their	O
Q2	O
2018	O
earning	O
report	O
.	O
</s>
<s>
Analysts	O
predicted	O
that	O
the	O
phone	O
would	O
be	O
the	O
worst	O
selling	O
Galaxy	B-Application
S	I-Application
flagship	O
since	O
the	O
Samsung	B-Application
Galaxy	I-Application
S5	I-Application
.	O
</s>
<s>
Samsung	B-Application
has	O
responded	O
by	O
issuing	O
a	O
statement	O
that	O
they	O
were	O
"	O
looking	O
into	O
a	O
limited	O
number	O
of	O
reports	O
of	O
Galaxy	O
S9/S9	O
+	O
touchscreen	O
responsiveness	O
issues	O
"	O
.	O
</s>
<s>
Some	O
users	O
of	O
the	O
Galaxy	B-Application
S9	I-Application
have	O
reported	O
the	O
so-called	O
"	O
Black	O
Crush	O
"	O
issues	O
,	O
where	O
the	O
display	O
has	O
issues	O
displaying	O
different	O
shades	O
of	O
dark	O
colors	O
.	O
</s>
<s>
Samsung	B-Application
has	O
responded	O
with	O
a	O
statement	O
that	O
they	O
are	O
aware	O
of	O
"	O
a	O
limited	O
number	O
of	O
reports	O
of	O
Galaxy	O
S9/S9	O
+	O
displaying	O
dark	O
colors	O
differently	O
than	O
intended	O
in	O
certain	O
instances	O
"	O
but	O
has	O
not	O
provided	O
an	O
official	O
fix	O
for	O
it	O
yet	O
.	O
</s>
<s>
Analysts	O
discovered	O
that	O
the	O
four	O
Samsung-designed	O
cores	O
had	O
been	O
poorly	O
tuned	O
,	O
resulting	O
in	O
decreased	O
battery	O
life	O
.	O
</s>
<s>
In	O
previous	O
Galaxy	B-Application
S	I-Application
phones	O
,	O
the	O
Exynos	O
processor	O
performed	O
similar	O
to	O
the	O
Snapdragon	B-Architecture
version	O
.	O
</s>
<s>
The	O
S9	O
powered	O
by	O
the	O
Exynos	O
9810	O
performed	O
relatively	O
slow	O
for	O
a	O
flagship	O
and	O
compared	O
to	O
the	O
Snapdragon-powered	O
S9	O
.	O
</s>
