<s>
The	O
Samsung	B-Application
Galaxy	I-Application
A	I-Application
series	I-Application
is	O
a	O
line	O
of	O
mid-range	O
smartphones	B-Application
and	O
tablets	B-Device
manufactured	O
by	O
Samsung	B-Application
Electronics	O
as	O
part	O
of	O
their	O
Galaxy	B-Operating_System
line	O
.	O
</s>
<s>
The	O
first	O
model	O
in	O
the	O
series	O
was	O
the	O
first-generation	O
Galaxy	B-Application
Alpha	I-Application
,	O
released	O
on	O
31	O
October	O
2014	O
.	O
</s>
<s>
Following	O
the	O
announcement	O
of	O
the	O
2017	O
series	O
,	O
Samsung	B-Application
announced	O
that	O
they	O
hoped	O
to	O
sell	O
up	O
to	O
20	O
million	O
Galaxy	B-Application
A	I-Application
series	I-Application
smartphones	B-Application
,	O
targeting	O
consumers	O
in	O
Europe	O
,	O
Africa	O
,	O
Asia	O
,	O
the	O
Middle	O
East	O
and	O
Latin	O
America	O
.	O
</s>
<s>
As	O
of	O
2020	O
,	O
most	O
of	O
the	O
Galaxy	B-Application
A	I-Application
series	I-Application
models	O
are	O
available	O
in	O
most	O
countries	O
.	O
</s>
<s>
Galaxy	B-Device
Tab	I-Device
A	I-Device
is	O
also	O
part	O
of	O
the	O
A	O
series	O
and	O
is	O
available	O
in	O
most	O
countries	O
as	O
well	O
.	O
</s>
<s>
The	O
"	O
Galaxy	B-Operating_System
A	O
"	O
nameplate	O
first	O
appeared	O
on	O
the	O
Samsung	B-Application
SHW-M100S	O
,	O
which	O
was	O
released	O
in	O
2010	O
exclusively	O
for	O
the	O
South	O
Korean	O
market	O
and	O
known	O
as	O
the	O
Samsung	B-Application
Anycall	O
Galaxy	B-Operating_System
A	O
.	O
</s>
<s>
It	O
was	O
a	O
mid-range	O
device	O
and	O
positioned	O
well	O
below	O
the	O
flagship	O
Galaxy	B-Application
S	I-Application
.	O
</s>
<s>
The	O
Samsung	B-Application
Galaxy	I-Application
Alpha	I-Application
was	O
introduced	O
on	O
13	O
August	O
2014	O
and	O
released	O
in	O
September	O
2014	O
.	O
</s>
<s>
A	O
high-end	O
device	O
,	O
the	O
Galaxy	B-Application
Alpha	I-Application
is	O
Samsung	B-Application
's	O
first	O
smartphone	B-Application
to	O
incorporate	O
a	O
metallic	O
frame	O
and	O
more	O
premium	O
materials	O
,	O
although	O
the	O
remainder	O
of	O
its	O
physical	O
appearance	O
still	O
resembles	O
previous	O
models	O
such	O
as	O
the	O
Galaxy	B-Application
S5	I-Application
.	O
</s>
<s>
It	O
also	O
incorporates	O
the	O
Qualcomm	B-Architecture
Snapdragon	I-Architecture
801	O
or	O
Samsung	B-Application
's	O
new	O
Exynos	O
5430	O
system-on-chip	O
,	O
which	O
is	O
the	O
first	O
mobile	O
system-on-chip	O
to	O
use	O
a	O
20	O
nanometer	O
manufacturing	B-Architecture
process	I-Architecture
.	O
</s>
<s>
However	O
,	O
the	O
Galaxy	B-Application
Alpha	I-Application
received	O
mixed	O
reviews	O
:	O
although	O
praised	O
for	O
its	O
higher	O
quality	O
build	O
and	O
design	O
in	O
comparison	O
to	O
earlier	O
Galaxy	B-Operating_System
models	O
 '	O
utilitarian	O
plastic	O
construction	O
,	O
the	O
device	O
was	O
criticized	O
for	O
its	O
modest	O
specifications	O
in	O
comparison	O
to	O
the	O
flagship	O
Galaxy	B-Application
S5	I-Application
,	O
with	O
the	O
Alpha	B-Application
being	O
criticized	O
for	O
lacking	O
water	O
resistance	O
,	O
lower	O
resolution	O
screen	O
(	O
720p	O
versus	O
1080p	O
)	O
and	O
no	O
MicroSD	O
slot	O
for	O
expandable	O
storage	O
.	O
</s>
<s>
The	O
Alpha	B-Application
also	O
debuted	O
at	O
a	O
price	O
too	O
high	O
for	O
what	O
some	O
considered	O
to	O
be	O
a	O
"	O
mid-range	O
"	O
smartphone	B-Application
,	O
as	O
although	O
it	O
did	O
share	O
the	O
same	O
Snapdragon	B-Architecture
801	O
as	O
the	O
Galaxy	B-Application
S5	I-Application
,	O
most	O
earlier	O
phones	O
with	O
the	O
Snapdragon	B-Architecture
801	O
had	O
already	O
been	O
on	O
the	O
market	O
for	O
months	O
and	O
saw	O
price	O
drops	O
.	O
</s>
<s>
Following	O
its	O
launch	O
,	O
Samsung	B-Application
Electronics	O
CEO	O
JK	O
Shin	O
explained	O
that	O
the	O
Alpha	B-Application
was	O
"	O
built	O
and	O
designed	O
based	O
on	O
the	O
specific	O
desires	O
of	O
the	O
consumer	O
market.	O
"	O
</s>
<s>
The	O
company	O
touted	O
that	O
the	O
Galaxy	B-Application
Alpha	I-Application
would	O
mark	O
a	O
"	O
new	O
design	O
approach	O
"	O
for	O
Samsung	B-Application
's	O
products	O
,	O
and	O
that	O
elements	O
from	O
the	O
Alpha	B-Application
could	O
appear	O
on	O
future	O
Samsung	B-Application
models	O
.	O
</s>
<s>
Its	O
operating	O
system	O
is	O
based	O
on	O
Android	B-Application
4.4.4	I-Application
"	I-Application
KitKat	I-Application
"	I-Application
with	O
its	O
own	O
version	O
of	O
TouchWiz	B-Application
UI	I-Application
.	O
</s>
<s>
Several	O
updates	O
were	O
made	O
throughout	O
the	O
world	O
and	O
in	O
April	O
2015	O
,	O
Android	B-Application
5.0.2	I-Application
"	I-Application
Lollipop	I-Application
"	I-Application
was	O
made	O
available	O
through	O
an	O
OTA	O
update	O
.	O
</s>
<s>
In	O
March	O
2015	O
,	O
Samsung	B-Application
introduced	O
the	O
Galaxy	B-Device
Tab	I-Device
A	I-Device
series	O
with	O
8.0	B-Device
inch	I-Device
and	O
9.7	B-Device
inch	I-Device
displays	O
,	O
a	O
S	B-Operating_System
Pen	I-Operating_System
stylus	O
,	O
as	O
well	O
as	O
preloaded	O
Samsung	B-Application
applications	O
.	O
</s>
<s>
The	O
S	B-Operating_System
Pen	I-Operating_System
feature	O
on	O
the	O
Galaxy	B-Device
Tab	I-Device
A	I-Device
series	O
,	O
makes	O
the	O
first	O
Samsung	B-Operating_System
Galaxy	I-Operating_System
device	O
to	O
be	O
equipped	O
with	O
the	O
Samsung	B-Application
stylus	O
outside	O
of	O
the	O
Note	O
series	O
.	O
</s>
<s>
New	O
features	O
were	O
introduced	O
in	O
the	O
Galaxy	B-Operating_System
A	O
2016	O
Series	O
which	O
includes	O
metal	O
and	O
glass	O
body	O
,	O
NFC	O
which	O
supports	O
Samsung	B-Application
Pay	I-Application
,	O
Samsung	B-Application
's	O
Adaptive	O
Fast	O
charging	O
feature	O
and	O
increased	O
battery	O
life	O
.	O
</s>
<s>
The	O
Galaxy	B-Operating_System
A	O
(	O
2016	O
)	O
series	O
are	O
very	O
similar	O
to	O
the	O
Galaxy	B-Application
S6	I-Application
,	O
and	O
the	O
Galaxy	B-Application
Note	I-Application
5	I-Application
flagships	O
,	O
which	O
were	O
released	O
in	O
April	O
2015	O
,	O
and	O
August	O
2015	O
,	O
respectively	O
.	O
</s>
<s>
In	O
January	O
2017	O
,	O
Samsung	B-Application
unveiled	O
the	O
2017	O
edition	O
of	O
the	O
Galaxy	B-Application
A	I-Application
series	I-Application
.	O
</s>
<s>
Newly	O
improved	O
features	O
include	O
16-megapixel	O
front	O
and	O
back	O
cameras	O
,	O
an	O
Exynos	O
7	O
Octa	O
7880	O
SoC	O
,	O
a	O
3D	O
glass	O
display	O
(	O
similar	O
to	O
Samsung	B-Application
Galaxy	I-Application
S6	I-Application
edge+	I-Application
,	O
Galaxy	B-Application
Note	I-Application
5	I-Application
and	O
Galaxy	B-Application
S7	I-Application
)	O
,	O
barometer	O
and	O
gyroscope	B-Application
sensors	O
and	O
IP68	O
certification	O
for	O
water	O
and	O
dust	O
resistance	O
as	O
well	O
as	O
support	O
for	O
Gear	O
360	O
(	O
2017	O
)	O
.	O
</s>
<s>
The	O
new	O
design	O
of	O
the	O
series	O
are	O
very	O
similar	O
to	O
the	O
Galaxy	B-Application
S7	I-Application
and	O
the	O
S7	B-Application
Edge	I-Application
,	O
released	O
in	O
March	O
2016	O
.	O
</s>
<s>
The	O
series	O
comprises	O
three	O
models	O
:	O
Galaxy	B-Application
A3	I-Application
,	O
Galaxy	B-Application
A5	I-Application
,	O
and	O
Galaxy	B-Application
A7	I-Application
.	O
</s>
<s>
This	O
was	O
the	O
last	O
Galaxy	B-Application
A	I-Application
series	I-Application
to	O
use	O
the	O
TouchWiz	B-Application
user	I-Application
interface	I-Application
,	O
before	O
being	O
superseded	O
by	O
Samsung	B-Application
Experience	I-Application
and	O
One	B-Application
UI	I-Application
in	O
later	O
models	O
.	O
</s>
<s>
The	O
2018	O
Galaxy	B-Application
A	I-Application
Series	I-Application
introduces	O
many	O
high-end	O
features	O
for	O
the	O
first	O
time	O
in	O
the	O
Galaxy	B-Operating_System
A	O
lineup	O
,	O
including	O
multi-lens	O
camera	O
,	O
Infinity	O
Display	O
,	O
Adaptive	O
Fast	O
Charging	O
,	O
IP68	O
certification	O
,	O
and	O
revamped	O
design	O
.	O
</s>
<s>
This	O
series	O
uses	O
Samsung	B-Application
Experience	I-Application
UI	I-Application
derived	O
from	O
the	O
Galaxy	B-Application
S8	I-Application
and	O
Galaxy	B-Application
Note	I-Application
9	I-Application
.	O
</s>
<s>
The	O
series	O
comprises	O
seven	O
models	O
:	O
Galaxy	B-Application
A6	I-Application
,	O
Galaxy	B-Application
A6+	I-Application
,	O
Galaxy	B-Application
A7	I-Application
,	O
Galaxy	B-Application
A8	I-Application
,	O
Galaxy	B-Application
A8+	I-Application
,	O
Galaxy	B-Application
A8	I-Application
Star	I-Application
,	O
and	O
Galaxy	B-Application
A9	I-Application
.	O
</s>
<s>
Samsung	B-Application
introduced	O
the	O
2019	O
Galaxy	B-Application
A	I-Application
Series	I-Application
in	O
February	O
2019	O
,	O
alongside	O
the	O
online-exclusive	O
Galaxy	B-Application
M	I-Application
Series	I-Application
.	O
</s>
<s>
Unlike	O
all	O
the	O
previous	O
models	O
,	O
the	O
lineup	O
shifts	O
to	O
the	O
new	O
two-digit	O
nomenclature	O
first	O
introduced	O
in	O
the	O
Galaxy	B-Application
S10	I-Application
.	O
</s>
<s>
It	O
retains	O
the	O
higher-end	O
features	O
previously	O
introduced	O
in	O
the	O
Galaxy	B-Operating_System
A	O
2018	O
series	O
with	O
several	O
improvements	O
,	O
alongside	O
a	O
"	O
waterdrop	O
"	O
notch	O
display	O
(	O
also	O
debuted	O
in	O
the	O
Galaxy	B-Application
M	I-Application
series	I-Application
)	O
,	O
higher	O
battery	O
capacity	O
,	O
newer	O
SoCs	O
,	O
and	O
higher	O
memory	O
capacity	O
.	O
</s>
<s>
The	O
video	O
stabilization	O
feature	O
returned	O
after	O
it	O
was	O
removed	O
from	O
the	O
Galaxy	B-Operating_System
A	O
2017	O
series	O
,	O
but	O
IP67	O
rating	O
was	O
removed	O
on	O
the	O
higher	O
models	O
.	O
</s>
<s>
This	O
lineup	O
,	O
except	O
the	O
A2	B-Application
Core	I-Application
,	O
features	O
One	B-Application
UI	I-Application
user	O
interface	O
,	O
in	O
accordance	O
to	O
the	O
S10	O
series	O
.	O
</s>
<s>
The	O
series	O
comprises	O
the	O
most	O
numerous	O
models	O
of	O
the	O
Galaxy	B-Application
A	I-Application
series	I-Application
,	O
with	O
eighteen	O
models	O
–	O
Galaxy	B-Operating_System
A2	B-Application
Core	I-Application
,	O
Galaxy	B-Operating_System
A10e	O
,	O
Galaxy	B-Application
A10	I-Application
,	O
Galaxy	B-Application
A10s	I-Application
,	O
Galaxy	B-Application
A20	I-Application
,	O
Galaxy	B-Application
A20s	I-Application
,	O
Galaxy	B-Application
A30	I-Application
,	O
Galaxy	B-Application
A30s	I-Application
,	O
Galaxy	B-Application
A40	I-Application
,	O
Galaxy	B-Application
A40s	I-Application
,	O
Galaxy	B-Application
A50	I-Application
,	O
Galaxy	B-Application
A50s	I-Application
,	O
Galaxy	B-Application
A60	I-Application
,	O
Galaxy	B-Application
A70	I-Application
,	O
Galaxy	B-Application
A70s	I-Application
,	O
Galaxy	B-Application
A80	I-Application
and	O
Galaxy	B-Application
A90	I-Application
.	O
</s>
<s>
Samsung	B-Application
introduced	O
the	O
2020	O
Galaxy	B-Application
A	I-Application
series	I-Application
a	O
few	O
months	O
after	O
the	O
release	O
of	O
mid-generation	O
refresh	O
of	O
the	O
2019	O
series	O
(	O
those	O
with	O
the	O
"	O
s	O
"	O
suffix	O
)	O
.	O
</s>
<s>
The	O
series	O
comprises	O
eleven	O
models	O
–	O
Galaxy	B-Application
A01	I-Application
Core	O
,	O
Galaxy	B-Application
A01	I-Application
,	O
Galaxy	B-Application
A11	I-Application
,	O
Galaxy	B-Operating_System
A21	O
,	O
Galaxy	B-Application
A21s	I-Application
,	O
Galaxy	B-Application
A31	I-Application
,	O
Galaxy	B-Application
A41	I-Application
,	O
Galaxy	B-Application
A51	I-Application
,	O
Galaxy	B-Application
A71	I-Application
,	O
Galaxy	B-Application
A51	I-Application
5G	O
,	O
and	O
Galaxy	B-Application
A71	I-Application
5G	O
.	O
</s>
<s>
The	O
Galaxy	B-Application
A01	I-Application
Core	O
.	O
</s>
<s>
Samsung	B-Application
introduced	O
the	O
2021	O
Galaxy	B-Application
A	I-Application
series	I-Application
in	O
September	O
2020	O
.	O
</s>
<s>
It	O
also	O
shifts	O
away	O
from	O
Exynos	O
SoCs	O
in	O
favor	O
of	O
Qualcomm	O
and	O
MediaTek	B-Architecture
,	O
as	O
Exynos	O
SoCs	O
are	O
now	O
focused	O
only	O
on	O
flagship	O
models	O
.	O
</s>
<s>
The	O
series	O
currently	O
comprises	O
twelve	O
models	O
–	O
Galaxy	B-Application
A02	I-Application
,	O
Galaxy	B-Application
A02s	I-Application
,	O
Galaxy	B-Application
A12	I-Application
,	O
Galaxy	B-Operating_System
A22	O
,	O
Galaxy	B-Application
A22	I-Application
5G	I-Application
,	O
Galaxy	B-Application
A32	I-Application
,	O
Galaxy	B-Application
A32	I-Application
5G	I-Application
,	O
Galaxy	B-Application
A42	I-Application
5G	I-Application
,	O
Galaxy	B-Application
A52	I-Application
,	O
Galaxy	B-Application
A52	I-Application
5G	I-Application
,	O
Galaxy	B-Application
A52s	I-Application
5G	O
,	O
and	O
Galaxy	B-Application
A72	I-Application
.	O
</s>
<s>
Samsung	B-Application
introduced	O
the	O
2022	O
Galaxy	B-Application
A	I-Application
series	I-Application
in	O
August	O
2021	O
.	O
</s>
<s>
Samsung	B-Application
introduced	O
the	O
2023	O
Galaxy	B-Application
A	I-Application
series	I-Application
in	O
2022	O
.	O
</s>
