<s>
Redmi	B-Application
Note	I-Application
9	I-Application
is	O
a	O
line	O
of	O
Android-based	O
smartphones	B-Application
as	O
part	O
of	O
the	O
Redmi	B-Application
Note	O
series	O
by	O
Redmi	B-Application
,	O
a	O
sub-brand	O
of	O
Xiaomi	O
Inc	O
.	O
</s>
<s>
The	O
smartphone	B-Application
was	O
succeeded	O
by	O
Redmi	B-Application
Note	O
10	O
,	O
an	O
upgraded	O
version	O
released	O
in	O
March	O
,	O
2021	O
.	O
</s>
<s>
The	O
Note	O
9/10X	O
4G	B-Architecture
measures	O
and	O
weighs	O
which	O
is	O
heavier	O
than	O
usual	O
for	O
a	O
6.53	O
inch	O
phone	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
touchscreen	O
,	O
it	O
has	O
a	O
power	O
button	O
and	O
a	O
volume	O
up/down	O
button	O
located	O
on	O
the	O
right	O
side	O
,	O
an	O
IR	O
blaster	O
on	O
the	O
top	O
,	O
and	O
a	O
USB-C	O
port	O
,	O
a	O
downward-firing	O
speaker	O
,	O
and	O
a	O
headphone	B-Device
jack	I-Device
on	O
the	O
bottom	O
.	O
</s>
<s>
The	O
Note	O
9/10X	O
4G	B-Architecture
has	O
three	O
colour	O
options	O
:	O
Forest	O
Green	O
,	O
Midnight	O
Grey	O
,	O
and	O
Polar	O
White	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
touchscreen	O
,	O
it	O
has	O
a	O
power/fingerprint	O
scanner	O
button	O
and	O
a	O
volume	O
up/down	O
button	O
located	O
on	O
the	O
right	O
side	O
,	O
microSD	O
slot	O
in	O
the	O
left	O
side	O
,	O
an	O
IR	O
blaster	O
on	O
the	O
top	O
,	O
and	O
a	O
USB-C	O
port	O
,	O
a	O
downward-firing	O
speaker	O
,	O
and	O
a	O
headphone	B-Device
jack	I-Device
on	O
the	O
bottom	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
touchscreen	O
,	O
it	O
has	O
a	O
power/fingerprint	O
scanner	O
button	O
and	O
a	O
volume	O
up/down	O
button	O
located	O
on	O
the	O
right	O
side	O
,	O
SIM	O
card	O
and	O
microSD	O
slot	O
in	O
the	O
left	O
side	O
(	O
triple	O
slot	O
)	O
,	O
an	O
IR	O
blaster	O
on	O
the	O
top	O
,	O
and	O
a	O
USB-C	O
port	O
,	O
a	O
downward-firing	O
speaker	O
,	O
and	O
a	O
headphone	B-Device
jack	I-Device
on	O
the	O
bottom	O
.	O
</s>
<s>
The	O
POCO	B-Application
M2	I-Application
Pro	I-Application
measures	O
and	O
weighs	O
.	O
</s>
<s>
It	O
has	O
a	O
striped	O
pattern	O
on	O
the	O
phone	O
that	O
takes	O
up	O
two-thirds	O
of	O
the	O
rear	O
,	O
which	O
resembles	O
the	O
original	O
Google	B-Device
Pixel	I-Device
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
touchscreen	O
,	O
it	O
has	O
a	O
recessed	O
power/fingerprint	O
scanner	O
button	O
and	O
a	O
volume	O
up/down	O
button	O
located	O
on	O
the	O
right	O
side	O
,	O
microSD	O
slot	O
,	O
an	O
IR	O
blaster	O
,	O
and	O
a	O
USB-C	O
port	O
,	O
a	O
downward-firing	O
speaker	O
,	O
and	O
a	O
headphone	B-Device
jack	I-Device
.	O
</s>
<s>
The	O
POCO	B-Application
M2	I-Application
Pro	I-Application
has	O
three	O
colour	O
options	O
:	O
Out	O
Of	O
The	O
Blue	O
,	O
Green	O
and	O
Greener	O
,	O
and	O
Two	O
Shades	O
of	O
Black	O
.	O
</s>
<s>
The	O
Note	O
9	O
uses	O
the	O
octa-core	O
MediaTek	O
Helio	O
G85	O
containing	O
2	O
2GHz	O
Cortex-A75	O
core	O
,	O
6	O
1.8GHz	O
Cortex-A55	O
core	O
,	O
and	O
an	O
1GHz	O
Mali-G52	O
MC2	O
GPU	B-Architecture
)	O
,	O
which	O
is	O
a	O
small	O
revision	O
of	O
the	O
MediaTek	O
Helio	O
G80	O
.	O
</s>
<s>
The	O
GPU	B-Architecture
's	O
difference	O
is	O
the	O
GPU	B-Architecture
clock	O
at	O
950	O
MHz	O
on	O
the	O
MediaTek	O
Helio	O
G80	O
,	O
and	O
1	O
GHz	O
on	O
the	O
MediaTek	O
Helio	O
G85	O
.	O
</s>
<s>
The	O
rest	O
of	O
the	O
series	O
uses	O
the	O
octa-core	O
Qualcomm	O
Snapdragon	O
720G	O
which	O
contains	O
22.3	O
GHz	O
Kryo	B-Application
465	I-Application
Gold	O
core	O
,	O
6	O
1.8GHz	O
Kryo	B-Application
465	I-Application
Silver	O
core	O
,	O
and	O
an	O
Adreno	B-General_Concept
618	O
GPU	B-Architecture
.	O
</s>
<s>
The	O
Note	O
9	O
has	O
a	O
2340x1080	O
1080p	O
(	O
395ppi	O
with	O
19.5:9	O
aspect	B-General_Concept
ratio	I-General_Concept
)	O
,	O
16M	O
colors	O
,	O
Gorilla	O
Glass	O
5	O
,	O
and	O
IPS	B-Architecture
LCD	I-Architecture
display	O
with	O
1242:1	O
contrast	O
ratio	O
,	O
370	O
nits	O
of	O
brightness	O
with	O
100%	O
brightness	O
,	O
and	O
up	O
to	O
466	O
nits	O
with	O
Auto	O
mode	O
turned	O
on	O
.	O
</s>
<s>
The	O
rest	O
of	O
the	O
series	O
has	O
a	O
slightly	O
larger	O
display	O
,	O
at	O
2400x1080	O
with	O
a	O
20:9	O
aspect	B-General_Concept
ratio	I-General_Concept
,	O
rated	O
for	O
1500:1	O
contrast	O
ratio	O
and	O
450nits	O
of	O
brightness	O
,	O
and	O
has	O
support	O
for	O
HDR10	B-Application
.	O
</s>
<s>
In	O
the	O
POCO	B-Application
M2	I-Application
Pro	I-Application
,	O
there	O
is	O
a	O
daylight	O
mode	O
that	O
triggers	O
once	O
the	O
phone	O
detects	O
bright	O
lighting	O
.	O
</s>
<s>
The	O
entire	O
line	O
uses	O
a	O
non-removable	O
5020mAh	O
Li-Po	O
battery	O
,	O
except	O
for	O
the	O
POCO	B-Application
M2	I-Application
Pro	I-Application
which	O
uses	O
a	O
slightly	O
smaller	O
non-removable	O
5000mAh	O
Li-Po	O
battery	O
.	O
</s>
<s>
The	O
Note	O
9/9S/Pro	O
(	O
India	O
)	O
has	O
18W	O
fast	O
charging	O
,	O
the	O
Note	O
9	O
Pro	O
(	O
global	O
)	O
and	O
the	O
Note	O
9	O
Pro	O
Max	O
has	O
30W	O
fast	O
charging	O
,	O
and	O
the	O
POCO	B-Application
M2	I-Application
Pro	I-Application
has	O
33W	O
fast	O
charging	O
.	O
</s>
<s>
The	O
series	O
is	O
powered	O
by	O
Android	B-Application
,	O
a	O
Linux-based	O
,	O
open-source	O
mobile	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
developed	O
by	O
Google	O
and	O
introduced	O
commercially	O
in	O
2008	O
.	O
</s>
<s>
Among	O
other	O
features	O
,	O
the	O
software	O
allows	O
users	O
to	O
maintain	O
customized	O
home	O
screens	O
,	O
which	O
can	O
contain	O
shortcuts	O
to	O
applications	O
and	O
widgets	B-Application
for	O
displaying	O
information	O
.	O
</s>
<s>
The	O
series	O
uses	O
MIUI	B-Protocol
12.5.1	O
based	O
on	O
Android	B-Application
11	I-Application
.	O
</s>
<s>
MIUI	B-Protocol
12.5	O
has	O
a	O
minimalistic	O
design	O
and	O
some	O
elements	O
of	O
the	O
original	O
Android	B-Application
,	O
such	O
as	O
the	O
toggle	O
switches	O
in	O
the	O
notification	O
tray	O
,	O
and	O
the	O
app	O
drawer	O
in	O
some	O
markets	O
.	O
</s>
<s>
MIUI	B-Protocol
12.5	O
also	O
supports	O
dark	O
mode	O
,	O
making	O
the	O
system	O
background	O
turn	O
black	O
,	O
and	O
icons	O
darken	O
as	O
well	O
,	O
reading	O
mode	O
,	O
and	O
night	O
mode	O
.	O
</s>
<s>
MIUI	B-Protocol
12.5	O
also	O
has	O
per-app	O
background	O
activity	O
control	O
.	O
</s>
<s>
MIUI	B-Protocol
12.5	O
has	O
split-screen	O
capability	O
accessible	O
through	O
pressing	O
and	O
holding	O
an	O
application	O
in	O
the	O
task	O
switcher	O
.	O
</s>
<s>
MIUI	B-Protocol
12.5	O
is	O
a	O
slight	O
improvement	O
over	O
MIUI	B-Protocol
12	O
and	O
comes	O
as	O
an	O
intermediary	O
between	O
MIUI	B-Protocol
12	O
and	O
the	O
forthcoming	O
MIUI	B-Protocol
13	I-Protocol
.	O
</s>
<s>
MIUI	B-Protocol
12.5	O
continues	O
to	O
have	O
Mi	O
's	O
own	O
gallery	O
,	O
music	O
,	O
video	O
player	O
,	O
and	O
document	O
viewer	O
.	O
</s>
<s>
MIUI	B-Protocol
12.5	O
also	O
has	O
a	O
Security	O
app	O
,	O
which	O
scans	O
for	O
malware	O
,	O
clears	O
RAM	B-Architecture
space	O
,	O
manages	O
permissions	O
,	O
quota	O
usage	O
,	O
and	O
battery-draining	O
apps	O
.	O
</s>
<s>
The	O
Redmi	B-Application
Note	I-Application
9	I-Application
series	O
have	O
gone	O
through	O
3	O
major	O
Android	B-Application
updates	O
,	O
those	O
being	O
Android	B-Application
10	I-Application
,	O
Android	B-Application
11	I-Application
and	O
the	O
last	O
major	O
release	O
being	O
Android	B-Application
12	I-Application
.	O
</s>
<s>
For	O
Xiaomi	O
's	O
interface	O
,	O
or	O
in	O
general	O
terms	O
used	O
to	O
describe	O
other	O
brands	O
interfaces	O
as	O
Android	B-Application
fork	I-Application
,	O
those	O
being	O
MIUI	B-Protocol
11	O
,	O
MIUI	B-Protocol
12	O
,	O
MIUI	B-Protocol
13	I-Protocol
and	O
the	O
last	O
fork	O
release	O
being	O
MIUI	B-Protocol
14	O
.	O
</s>
<s>
They	O
praised	O
the	O
sturdy	O
design	O
,	O
the	O
battery	O
life	O
,	O
the	O
Night	O
Mode	O
,	O
the	O
AF	O
on	O
the	O
macro	O
camera	O
,	O
the	O
headphone	B-Device
jack	I-Device
,	O
microSD	O
card	O
slot	O
,	O
the	O
IR	O
blaster	O
,	O
and	O
the	O
feature-rich	O
OS	O
.	O
</s>
<s>
GSMArena	O
rated	O
the	O
series	O
(	O
except	O
Redmi	B-Application
Note	I-Application
9	I-Application
)	O
3.8/5	O
stars	O
.	O
</s>
