<s>
The	O
Samsung	B-Application
Galaxy	I-Application
A40	I-Application
is	O
a	O
mid-range	O
Android	B-Application
smartphone	B-Application
developed	O
and	O
manufactured	O
by	O
Samsung	B-Application
Electronics	O
.	O
</s>
<s>
Running	O
on	O
the	O
Samsung	B-Application
's	O
Android	O
11-based	O
One	B-Application
UI	I-Application
3	I-Application
software	O
,	O
the	O
device	O
was	O
announced	O
on	O
March	O
19	O
,	O
2019	O
.	O
</s>
<s>
The	O
Samsung	B-Application
Galaxy	I-Application
A40	I-Application
is	O
a	O
more	O
compact	O
variant	O
of	O
the	O
Samsung	B-Application
Galaxy	I-Application
A30	I-Application
,	O
being	O
sold	O
only	O
in	O
markets	O
where	O
the	O
Galaxy	B-Application
A30	I-Application
is	O
not	O
available	O
.	O
</s>
<s>
The	O
Samsung	B-Application
Galaxy	I-Application
A40	I-Application
has	O
a	O
5.9-inch	O
Super	B-Algorithm
AMOLED	I-Algorithm
'	O
Infinity-U	O
'	O
display	O
with	O
an	O
85.5	O
%	O
screen-to-body	O
ratio	O
.	O
</s>
<s>
The	O
A40	O
is	O
equipped	O
with	O
a	O
dual	O
rear	O
camera	O
arrangement	O
with	O
a	O
16	O
megapixel	O
,	O
f/1.7	O
aperture	B-General_Concept
sensor	O
as	O
the	O
main	O
camera	O
and	O
an	O
'	O
ultra-wide	O
'	O
5	O
megapixels	O
camera	O
lens	O
with	O
an	O
f/2.2	O
aperture	B-General_Concept
as	O
the	O
second	O
camera	O
.	O
</s>
<s>
The	O
A40	O
has	O
a	O
rear-mounted	O
LED	O
flash	O
as	O
well	O
as	O
video	B-Application
recording	I-Application
.	O
</s>
<s>
Maximum	O
video	B-Application
recording	I-Application
resolution	O
is	O
2336x1080	O
pixels	B-Algorithm
(	O
Full	O
mode	O
)	O
.	O
</s>
<s>
Audio	O
recording	O
with	O
external	O
USB	B-Protocol
microphones	O
is	O
supported	O
but	O
is	O
mixed	O
to	O
mono	O
.	O
</s>
<s>
The	O
device	O
runs	O
on	O
the	O
Android	B-Application
11	I-Application
operating	O
system	O
,	O
with	O
Samsung	B-Application
's	O
One	B-Application
UI	I-Application
skin	O
.	O
</s>
<s>
Samsung	B-Application
has	O
released	O
One	B-Application
UI	I-Application
2.0	I-Application
with	O
Android	B-Application
10	I-Application
for	O
Galaxy	B-Application
A40	I-Application
in	O
April	O
2020	O
.	O
</s>
<s>
Samsung	B-Application
has	O
released	O
One	O
UI	O
3.1	O
,	O
based	O
on	O
Android	B-Application
11	I-Application
,	O
in	O
late	O
March	O
2021	O
.	O
</s>
<s>
All	O
variants	O
of	O
the	O
Samsung	B-Application
Galaxy	I-Application
A40	I-Application
are	O
dual-SIM	O
.	O
</s>
<s>
SM-A405FN	B-Application
is	O
manufactured	O
in	O
Vietnam	O
.	O
</s>
