<s>
BlackBerry	B-Application
DTEK	I-Application
is	O
an	O
Android	B-Application
smartphone	B-Application
co-developed	O
and	O
distributed	O
by	O
BlackBerry	B-Operating_System
Limited	O
,	O
and	O
manufactured	O
by	O
TCL	O
.	O
</s>
<s>
DTEK	O
comprises	O
two	O
models	O
:	O
DTEK50	B-Application
which	O
is	O
a	O
modified	O
and	O
rebranded	O
variant	O
of	O
TCLs	O
Alcatel	B-Application
Idol	I-Application
4	I-Application
(	O
released	O
26	O
July	O
2016	O
)	O
;	O
and	O
DTEK60	B-Application
which	O
is	O
a	O
modified	O
and	O
rebranded	O
variant	O
of	O
TCLs	O
Alcatel	B-Application
Idol	I-Application
4S	I-Application
(	O
released	O
25	O
October	O
2016	O
)	O
.	O
</s>
<s>
The	O
DTEK	O
models	O
are	O
the	O
second	O
and	O
third	O
Blackberry	B-Operating_System
Android	B-Application
phones	I-Application
after	O
the	O
Blackberry	B-Application
Priv	I-Application
.	O
</s>
<s>
Like	O
the	O
Priv	B-Application
,	O
the	O
DTEK	O
Android	B-Application
operating	I-Application
system	I-Application
is	O
customized	O
with	O
features	O
inspired	O
by	O
those	O
seen	O
on	O
Blackberry	B-Operating_System
's	O
in-house	O
operating	O
systems	O
,	O
and	O
with	O
hardware	O
and	O
software	O
security	O
enhancements	O
(	O
such	O
as	O
the	O
titular	O
DTEK	O
software	O
)	O
.	O
</s>
<s>
The	O
DTEK	O
is	O
manufactured	O
by	O
TCL	O
,	O
with	O
the	O
DTEK50	B-Application
similar	O
in	O
design	O
to	O
the	O
Alcatel	B-Application
Idol	I-Application
4	I-Application
,	O
and	O
the	O
DTEK60	B-Application
to	O
the	O
Alcatel	B-Application
Idol	I-Application
4S	I-Application
.	O
</s>
<s>
The	O
DTEK50	B-Application
is	O
powered	O
by	O
an	O
octa-core	O
Qualcomm	B-Architecture
Snapdragon	I-Architecture
617	O
system-on-chip	O
with	O
3GB	O
of	O
RAM	B-Architecture
,	O
and	O
features	O
a	O
5.2-inch	O
1080p	O
IPS	B-Architecture
LCD	I-Architecture
display	O
,	O
whilst	O
the	O
DTEK60	B-Application
is	O
powered	O
by	O
a	O
Qualcomm	B-Architecture
Snapdragon	I-Architecture
20	O
with	O
4GB	O
of	O
RAM	B-Architecture
,	O
and	O
features	O
a	O
5.5-inch	O
display	O
.	O
</s>
<s>
The	O
DTEK50	B-Application
features	O
a	O
13-megapixel	O
rear-facing	O
camera	O
with	O
digital	O
image	O
stabilization	O
and	O
a	O
dual-LED	O
flash	O
,	O
an	O
84-degree	O
wide-angle	O
f/2.0	O
lens	O
,	O
and	O
phase	O
detection	O
auto	O
focus	O
,	O
whilst	O
the	O
DTEK60	B-Application
upgrades	O
this	O
to	O
a	O
21-megapixel	O
camera	O
and	O
2160p	O
video	O
capture	O
capable	O
,	O
6	O
element	O
f/2.2	O
lens	O
.	O
</s>
<s>
Both	O
have	O
the	O
same	O
8-megapixel	O
front-facing	O
camera	O
with	O
an	O
f/2.2	O
aperture	B-General_Concept
and	O
flash	O
.	O
</s>
<s>
The	O
DTEK60	B-Application
features	O
a	O
fingerprint	O
sensor	O
on	O
the	O
rear	O
of	O
the	O
handset	O
which	O
the	O
DTEK50	B-Application
does	O
not	O
,	O
whilst	O
the	O
DTEK50	B-Application
includes	O
an	O
FM	O
radio	O
which	O
the	O
DTEK60	B-Application
lacks	O
.	O
</s>
<s>
The	O
DTEK	O
models	O
shipped	O
with	O
Android	B-Application
6.0.1	I-Application
"	I-Application
Marshmallow	I-Application
"	I-Application
,	O
customized	O
with	O
additional	O
features	O
and	O
BlackBerry-developed	O
apps	O
,	O
similarly	O
to	O
the	O
BlackBerry	B-Application
Priv	I-Application
,	O
such	O
as	O
BlackBerry	B-Operating_System
Hub	O
,	O
DTEK	O
—	O
which	O
serves	O
as	O
a	O
dashboard	O
for	O
notifying	O
users	O
of	O
the	O
security	O
and	O
privacy	O
status	O
of	O
their	O
device	O
,	O
and	O
pop-up	O
widgets	O
.	O
</s>
<s>
BlackBerry	B-Operating_System
committed	O
to	O
releasing	O
regular	O
security	O
updates	O
to	O
the	O
DTEK	O
Android	B-Application
software	I-Application
.	O
</s>
<s>
The	O
DTEK50	B-Application
received	O
mixed	O
reviews	O
,	O
with	O
critics	O
suggesting	O
that	O
the	O
device	O
did	O
not	O
sufficiently	O
differentiate	O
itself	O
from	O
other	O
smartphones	B-Application
in	O
its	O
class	O
.	O
</s>
<s>
The	O
DTEK60	B-Application
gained	O
slightly	O
more	O
favourable	O
reviews	O
,	O
particularly	O
the	O
clarity	O
of	O
the	O
camera	O
,	O
its	O
overall	O
good	O
performance	O
and	O
battery	O
life	O
.	O
</s>
<s>
Engadget	O
positioned	O
the	O
DTEK50	B-Application
as	O
a	O
"	O
fleet	O
device	O
"	O
meant	O
to	O
be	O
purchased	O
in	O
bulk	O
for	O
adoption	O
by	O
a	O
company	O
's	O
employees	O
due	O
to	O
its	O
low	O
price	O
and	O
focus	O
on	O
security	O
.	O
</s>
<s>
The	O
DTEK50	B-Application
's	O
display	O
was	O
considered	O
to	O
be	O
"	O
pretty	O
damned	O
good	O
"	O
for	O
a	O
mid-range	O
device	O
and	O
only	O
"	O
fell	O
short	O
"	O
in	O
comparison	O
to	O
the	O
similarly	O
positioned	O
ZTE	O
Axon	O
7	O
(	O
which	O
features	O
a	O
1440p	O
display	O
)	O
.	O
</s>
<s>
In	O
conclusion	O
,	O
it	O
was	O
argued	O
that	O
the	O
Moto	B-Application
G4	I-Application
Plus	I-Application
was	O
better	O
value	O
at	O
the	O
same	O
price	O
point	O
due	O
to	O
its	O
larger	O
amount	O
of	O
storage	O
and	O
inclusion	O
of	O
a	O
fingerprint	O
reader	O
,	O
and	O
that	O
"	O
as	O
a	O
ploy	O
to	O
appeal	O
to	O
those	O
crucial	O
business	O
customers	O
,	O
it	O
's	O
brilliant	O
.	O
</s>
<s>
For	O
them	O
,	O
the	O
DTEK50	B-Application
is	O
a	O
solid	O
,	O
not-very-expensive	O
option	O
with	O
the	O
security	O
chops	O
to	O
put	O
IT	O
paranoiacs	O
at	O
ease	O
.	O
</s>
<s>
As	O
a	O
phone	O
for	O
regular	O
people	O
,	O
though	O
,	O
the	O
DTEK50	B-Application
is	O
a	O
much	O
a	O
tougher	O
sell.	O
"	O
</s>
<s>
The	O
Verge	O
felt	O
that	O
the	O
DTEK50	B-Application
's	O
display	O
was	O
"	O
pretty	O
nice	O
for	O
a	O
$300	O
phone	O
"	O
,	O
but	O
the	O
overall	O
hardware	O
was	O
described	O
as	O
being	O
of	O
average	O
specifications	O
.	O
</s>
<s>
The	O
DTEK50	B-Application
's	O
Android	B-Application
software	I-Application
was	O
praised	O
for	O
maintaining	O
the	O
user	O
experience	O
introduced	O
by	O
the	O
Priv	B-Application
,	O
but	O
with	O
fewer	O
bugs	O
and	O
additional	O
refinements	O
.	O
</s>
<s>
In	O
regards	O
to	O
security	O
,	O
it	O
was	O
noted	O
that	O
Android	B-Application
"	O
Marshmallow	B-Application
"	O
had	O
already	O
implemented	O
security	O
features	O
such	O
as	O
mandatory	O
device	O
encryption	O
and	O
finer	O
control	O
of	O
permission	O
grants	O
,	O
but	O
that	O
the	O
DTEK	O
software	O
helped	O
to	O
promote	O
privacy	O
best	O
practices	O
,	O
and	O
that	O
BlackBerry	B-Operating_System
had	O
consistently	O
delivered	O
Android	B-Application
's	O
monthly	O
security	O
patches	O
to	O
its	O
devices	O
.	O
</s>
<s>
However	O
,	O
the	O
DTEK50	B-Application
was	O
panned	O
for	O
not	O
including	O
a	O
fingerprint	O
reader	O
despite	O
this	O
focus	O
on	O
security	O
.	O
</s>
<s>
In	O
conclusion	O
,	O
it	O
was	O
argued	O
that	O
while	O
BlackBerry	B-Operating_System
had	O
"	O
identified	O
a	O
market	O
need	O
and	O
theoretically	O
could	O
do	O
a	O
great	O
job	O
filling	O
it	O
"	O
with	O
its	O
security-oriented	O
focus	O
,	O
the	O
DTEK50	B-Application
"	O
fails	O
to	O
stand	O
out	O
in	O
a	O
competitive	O
field	O
of	O
midrange	O
smartphones.	O
"	O
</s>
<s>
CNET	O
similarly	O
pointed	O
out	O
that	O
many	O
of	O
BlackBerry	B-Operating_System
's	O
claimed	O
security	O
enhancements	O
"	O
seem	O
to	O
either	O
be	O
placebos	O
or	O
functions	O
already	O
found	O
on	O
stock	O
Android	B-Application
devices	O
"	O
,	O
such	O
as	O
device	O
encryption	O
(	O
mandatory	O
on	O
Marshmallow	B-Application
)	O
and	O
boot	O
verification	O
(	O
which	O
is	O
strictly	O
enforced	O
on	O
Android	B-Application
Nougat	I-Application
,	O
but	O
with	O
notifications	O
on	O
Marshmallow	B-Application
)	O
,	O
and	O
that	O
the	O
device	O
as	O
shipped	O
was	O
vulnerable	O
to	O
the	O
Quadrooter	O
exploit	O
(	O
which	O
was	O
patched	O
on	O
unlocked	O
models	O
at	O
the	O
time	O
of	O
the	O
review	O
)	O
.	O
</s>
