<s>
The	O
Microsoft	B-Application
Lumia	I-Application
535	I-Application
is	O
an	O
entry-level	O
smartphone	B-Application
developed	O
by	O
Microsoft	O
Mobile	O
that	O
runs	O
the	O
Windows	B-Protocol
Phone	I-Protocol
8.1	I-Protocol
OS	O
and	O
is	O
upgradable	O
to	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
.	O
</s>
<s>
On	O
May	O
16	O
,	O
2015	O
,	O
Microsoft	O
released	O
its	O
successor	O
,	O
the	O
Microsoft	B-Application
Lumia	I-Application
540	I-Application
,	O
with	O
a	O
better	O
display	O
and	O
an	O
improved	O
camera	O
.	O
</s>
<s>
The	O
Lumia	B-Application
535	I-Application
comes	O
with	O
a	O
5.0	O
"	O
IPS	B-Architecture
LCD	I-Architecture
display	O
and	O
5MP	O
cameras	O
on	O
both	O
the	O
front	O
and	O
the	O
back	O
.	O
</s>
<s>
The	O
phone	O
has	O
1GB	O
of	O
RAM	B-Architecture
and	O
8GB	O
of	O
built-in	O
storage	O
,	O
and	O
is	O
powered	O
by	O
a	O
quad-core	O
1.2GHz	O
Snapdragon	B-Architecture
200	I-Architecture
CPU	O
and	O
Adreno	O
302	O
GPU	O
.	O
</s>
<s>
The	O
Lumia	B-Application
535	I-Application
ships	O
with	O
Windows	B-Protocol
Phone	I-Protocol
8.1	I-Protocol
Update	O
2	O
(	O
through	O
the	O
Lumia	B-Device
Denim	O
update	O
)	O
and	O
is	O
upgradeable	O
to	O
Windows	B-Operating_System
10	I-Operating_System
Mobile	I-Operating_System
.	O
</s>
<s>
Jim	O
Martin	O
from	O
PC	O
Advisor	O
wrote	O
:	O
"	O
We	O
're	O
fans	O
of	O
Windows	B-Protocol
Phone	I-Protocol
8.1	I-Protocol
but	O
the	O
Lumia	B-Application
535	I-Application
compromises	O
in	O
too	O
many	O
areas	O
to	O
make	O
it	O
a	O
bargain	O
at	O
£100	O
.	O
</s>
<s>
You	O
're	O
better	O
off	O
with	O
a	O
Motorola	B-Application
Moto	I-Application
E	I-Application
or	O
–	O
if	O
you	O
want	O
4G	O
–	O
the	O
EE	O
Kestrel.	O
"	O
</s>
<s>
Katharine	O
Byrne	O
from	O
Expert	O
Reviews	O
wrote	O
that	O
"	O
Microsoft	O
's	O
Lumia	B-Application
535	I-Application
is	O
well-built	O
,	O
but	O
poor	O
battery	O
life	O
and	O
a	O
fussy	O
touchscreen	B-Device
makes	O
it	O
frustrating	O
to	O
use.	O
"	O
</s>
<s>
According	O
to	O
Microsoft	O
,	O
the	O
Lumia	B-Application
535	I-Application
became	O
the	O
best-selling	O
mid-range	O
smartphone	B-Application
in	O
Pakistan	O
.	O
</s>
<s>
Since	O
the	O
release	O
,	O
users	O
have	O
detected	O
numerous	O
problems	O
regarding	O
the	O
phone	O
's	O
touch	B-Device
screen	I-Device
.	O
</s>
