<s>
OPPO	B-Application
R7s	I-Application
is	O
a	O
line	O
of	O
Android-based	O
smartphone	B-Application
manufactured	O
by	O
Oppo	O
that	O
were	O
released	O
in	O
October	O
,	O
2015	O
.	O
</s>
<s>
The	O
OPPO	B-Application
R7s	I-Application
provide	O
three	O
visions	O
of	O
silver	O
,	O
gold	O
,	O
and	O
rose	O
gold	O
.	O
</s>
<s>
The	O
OPPO	B-Application
R7s	I-Application
feature	O
a	O
5.5-inch	O
1080p	O
AMOLED	O
screen	O
,	O
a	O
lightweight	O
design	O
,	O
an	O
ultra-narrow	O
2.2mm	O
frame	O
,	O
a	O
fuselage	O
thickness	O
of	O
6.9mm	O
,	O
a	O
reoptimized	O
side	O
arc	O
and	O
a	O
more	O
delicate	O
back	O
touch	O
,	O
giving	O
it	O
an	O
excellent	O
grip	O
.	O
</s>
<s>
Mobile	O
has	O
a	O
5.5	O
display	O
and	O
a	O
screw	O
resolution	O
of	O
Full	O
HD	O
(	O
1080	O
x	O
1920	O
pixels	O
)	O
as	O
it	O
runs	O
in	O
Android	B-Application
v5.1.1	O
(	O
Lollipop	O
)	O
operating	O
system	O
.	O
</s>
<s>
OPPO	B-Application
R7s	I-Application
does	O
not	O
have	O
a	O
finger	O
print	O
system	O
.	O
</s>
<s>
The	O
OPPO	B-Application
R7s	I-Application
comes	O
with	O
a	O
3070mAh	O
lithium	O
battery	O
that	O
supports	O
VOOC	O
flash	O
charging	O
for	O
5	O
minutes	O
and	O
2	O
hours	O
of	O
calls	O
,	O
while	O
Samsung	O
Galaxy	O
A7	O
only	O
has	O
2600mAh	O
battery	O
in	O
2015	O
.	O
</s>
<s>
OPPO	B-Application
R7s	I-Application
,	O
as	O
a	O
major	O
product	O
of	O
OPPO	O
in	O
the	O
second	O
half	O
of	O
2015	O
,	O
ca	O
n't	O
miss	O
the	O
VOOC	O
flash	O
,	O
because	O
if	O
let	O
them	O
recharge	O
for	O
30	O
minutes	O
.	O
</s>
<s>
OPPO	B-Application
R7s	I-Application
can	O
reach	O
75%	O
electric	O
quality	O
with	O
20W	O
while	O
iPhone	O
XR	O
only	O
has	O
50%	O
with	O
18W	O
adapter	O
.	O
</s>
<s>
The	O
OPPO	B-Application
R7s	I-Application
camera	O
is	O
combined	O
with	O
a	O
front	O
8	O
million	O
pixels	O
and	O
a	O
rear	O
13	O
million	O
pixels	O
,	O
which	O
supports	O
phase	O
focusing	O
and	O
global	O
flash	O
system	O
.	O
</s>
<s>
The	O
OPPO	B-Application
R7s	I-Application
uses	O
a	O
‘	O
Flash	O
Shot’	O
technology	O
,	O
as	O
the	O
camera	O
only	O
needs	O
0.1	O
seconds	O
to	O
focus	O
,	O
which	O
allows	O
the	O
phone	O
to	O
take	O
a	O
shot	O
very	O
quickly	O
,	O
comparing	O
to	O
the	O
iPhone	O
6s	O
,	O
which	O
is	O
also	O
similar	O
.	O
</s>
<s>
The	O
OPPO	B-Application
R7s	I-Application
have	O
a	O
good	O
all	O
rounder	O
shot	O
,	O
however	O
there	O
are	O
still	O
some	O
areas	O
that	O
the	O
phone	O
's	O
camera	O
can	O
improve	O
.	O
</s>
<s>
One	O
of	O
the	O
flaws	O
on	O
OPPO	B-Application
R7s	I-Application
camera	O
is	O
that	O
under	O
low	O
light	O
conditions	O
the	O
speed	O
of	O
the	O
shutter	O
reduced	O
significantly	O
as	O
very	O
steady	O
hands	O
are	O
needed	O
to	O
avoid	O
blur	O
image	O
.	O
</s>
<s>
The	O
video	O
system	O
on	O
OPPO	B-Application
R7s	I-Application
can	O
be	O
set	O
to	O
720p	O
,	O
with	O
realistic	O
and	O
cool	O
colors	O
,	O
comparing	O
to	O
iPhone	O
which	O
can	O
capture	O
4k	O
video	O
at	O
30	O
frames	O
per	O
second	O
.	O
</s>
<s>
OPPO	B-Application
R7s	I-Application
runs	O
Color	O
OS	O
2.1	O
,	O
which	O
is	O
the	O
latest	O
version	O
of	O
OPPO	O
software	O
,	O
based	O
on	O
Android	B-Application
5.1	O
lollipop	O
.	O
</s>
<s>
Anyone	O
familiar	O
with	O
Color	O
OS	O
will	O
know	O
that	O
the	O
experience	O
on	O
OPPO	B-Application
R7s	I-Application
is	O
very	O
different	O
from	O
the	O
usual	O
Android	B-Application
experience	O
.	O
</s>
<s>
In	O
addition	O
,	O
because	O
OPPO	B-Application
R7s	I-Application
comes	O
with	O
a	O
Samsung	O
AMOLED	O
display	O
,	O
it	O
has	O
a	O
vibrant	O
color	O
display	O
.	O
</s>
<s>
In	O
the	O
black	O
scene	O
,	O
OPPO	B-Application
R7s	I-Application
can	O
be	O
achieved	O
without	O
luminous	O
characteristics	O
,	O
compared	O
to	O
the	O
IPS	O
screen	O
will	O
have	O
a	O
better	O
performance	O
.	O
</s>
<s>
One	O
of	O
the	O
most	O
features	O
is	O
OPPO	B-Application
R7s	I-Application
magnesium-aluminum	O
alloy	O
unibody	O
construction	O
.	O
</s>
<s>
Similar	O
to	O
the	O
other	O
two	O
phones	O
named	O
OPPO	O
R7	O
and	O
OPPO	O
R7	O
plus	O
,	O
the	O
OPPO	B-Application
R7s	I-Application
have	O
a	O
unibody	O
design	O
with	O
full	O
metal	O
which	O
feels	O
solid	O
in	O
hand	O
.	O
</s>
<s>
Another	O
best	O
key	O
features	O
is	O
for	O
its	O
design	O
,	O
especially	O
dual-SIM	O
dual-standby	O
capability	O
of	O
OPPO	B-Application
R7s	I-Application
,	O
which	O
comes	O
with	O
a	O
double	O
edge	O
:	O
using	O
the	O
R7s	O
either	O
with	O
a	O
microSIM	O
and	O
a	O
microSD	O
or	O
a	O
microSIM	O
and	O
a	O
nanoSIM	O
.	O
</s>
<s>
Compared	O
to	O
iPhone	O
6s	O
,	O
the	O
height	O
and	O
width	O
of	O
it	O
is	O
138.3mm	O
and	O
67.1mm	O
respectively	O
,	O
while	O
OPPO	B-Application
R7s	I-Application
is	O
bigger	O
than	O
iPhone	O
6s	O
at	O
151.8mm	O
and	O
75.4mm	O
.	O
</s>
<s>
Also	O
,	O
display	O
is	O
also	O
a	O
feature	O
for	O
OPPO	B-Application
R7s	I-Application
.	O
</s>
<s>
The	O
resolution	O
of	O
it	O
is	O
750x1334	O
pixels	O
,	O
while	O
the	O
resolution	O
of	O
OPPO	B-Application
R7s	I-Application
is	O
1080x1920	O
pixels	O
which	O
provides	O
full	O
HD	O
.	O
</s>
<s>
And	O
the	O
pixel	O
density	O
of	O
OPPO	B-Application
R7s	I-Application
is	O
over	O
400	O
ppi	O
,	O
which	O
is	O
higher	O
than	O
iPhone	O
6s	O
's	O
at	O
326	O
ppi	O
.	O
</s>
<s>
Furthermore	O
,	O
OPPO	B-Application
R7s	I-Application
has	O
memory	O
card	O
of	O
microSD	O
and	O
its	O
memory	O
ram	O
is	O
4	O
GB	O
,	O
which	O
is	O
twice	O
than	O
that	O
of	O
iPhone	O
6s	O
's	O
.	O
</s>
<s>
Finally	O
,	O
OPPO	B-Application
R7s	I-Application
has	O
great	O
battery	O
life	O
compared	O
with	O
other	O
phones	O
,	O
for	O
example	O
iPhone	O
6s	O
,	O
which	O
has	O
1715	O
mAh	O
.	O
</s>
<s>
OPPO	B-Application
R7s	I-Application
includes	O
a	O
feature	O
called	O
VOOC	O
(	O
Voltage	O
Open	O
Loop	O
Multi-step	O
Constant-Current	O
Charging	O
)	O
this	O
allows	O
the	O
phone	O
to	O
charge	O
from	O
1%	O
to	O
100%	O
in	O
just	O
35	O
minutes	O
.	O
</s>
<s>
Oppo	O
has	O
made	O
a	O
fair	O
amount	O
of	O
mid-range	O
models	O
designed	O
to	O
take	O
the	O
fight	O
to	O
its	O
premium	O
competitors	O
,	O
but	O
the	O
Oppo	B-Application
R7s	I-Application
feels	O
like	O
a	O
mid-ranger	O
sitting	O
in	O
the	O
middle	O
of	O
a	O
bunch	O
of	O
other	O
mid-rangers	O
.	O
</s>
<s>
However	O
,	O
OPPO	B-Application
R7s	I-Application
still	O
has	O
some	O
things	O
should	O
be	O
improved	O
.	O
</s>
<s>
Also	O
contrast	O
with	O
iPhone	O
6s	O
,	O
OPPO	B-Application
R7s	I-Application
is	O
lack	O
of	O
NFC	O
(	O
Near	O
Field	O
Communication	O
)	O
when	O
iPhone	O
6s	O
has	O
Apply	O
Pay	O
and	O
FM	O
radio	O
were	O
a	O
major	O
disappointment	O
of	O
the	O
smart	B-Application
phone	I-Application
.	O
</s>
<s>
Although	O
the	O
Oppo	B-Application
R7s	I-Application
can	O
record	O
high-resolution	O
1920	O
x	O
1080	O
movies	O
,	O
it	O
is	O
hard	O
to	O
find	O
any	O
evidence	O
of	O
the	O
R7s	O
featuring	O
an	O
HDMI	O
port	O
,	O
which	O
is	O
convenient	O
to	O
watch	O
HD	O
videos	O
on	O
your	O
shiny	O
HDTV	O
.	O
</s>
<s>
Lastly	O
,	O
the	O
variants	O
for	O
OPPO	B-Application
R7s	I-Application
only	O
has	O
one	O
type	O
for	O
customers	O
which	O
is	O
32	O
GB	O
,	O
however	O
,	O
compared	O
to	O
iPhone	O
6s	O
,	O
it	O
has	O
kinds	O
of	O
storages	O
.	O
</s>
<s>
The	O
OPPO	B-Application
R7s	I-Application
has	O
4GB	O
of	O
RAM	O
,	O
its	O
Geekbench	O
3	O
single	O
core	O
is	O
only	O
696	O
,	O
comparing	O
to	O
Google	O
Nexus	O
5X	O
's	O
1188	O
and	O
Apple	O
iPhone	O
6S	O
's	O
2540	O
,	O
which	O
all	O
have	O
better	O
performance	O
.	O
</s>
<s>
Also	O
,	O
OPPO	O
's	O
VOOC	O
charger	O
could	O
be	O
for	O
charging	O
up	O
OPPO	B-Application
R7s	I-Application
,	O
however	O
the	O
charger	O
rejects	O
to	O
charge	O
other	O
phones	O
such	O
as	O
Samsung	O
,	O
Sony	O
and	O
LG	O
phones	O
as	O
it	O
would	O
be	O
inconvenient	O
to	O
charge	O
multiple	O
device	O
at	O
once	O
.	O
</s>
