<s>
Tecno	B-Application
Spark	I-Application
4	I-Application
Lite	I-Application
,	O
Tecno	B-Application
Spark	I-Application
4	I-Application
Air	I-Application
and	O
Tecno	B-Application
Spark	I-Application
4	I-Application
are	O
Android-based	O
smartphones	B-Application
manufactured	O
,	O
released	O
and	O
marketed	O
by	O
the	O
Chinese	O
company	O
Tecno	O
Mobile	O
as	O
part	O
of	O
Tecno	B-Application
Spark	I-Application
4	I-Application
series	O
.	O
</s>
<s>
It	O
is	O
the	O
fourth	O
generation	O
of	O
Tecno	O
's	O
Spark	O
series	O
of	O
smartphones	B-Application
.	O
</s>
<s>
The	O
Spark	O
4	O
Lite	O
,	O
Spark	O
4	O
Air	O
and	O
Spark	O
4	O
are	O
the	O
upgraded	O
versions	O
of	O
Spark	O
3	O
batch	O
,	O
coming	O
with	O
the	O
same	O
OS	B-Application
,	O
RAM	B-Architecture
and	O
GPU	B-Architecture
,	O
but	O
with	O
different	O
UI	B-Application
and	O
battery	O
capacity	O
.	O
</s>
<s>
All	O
the	O
devices	O
come	O
with	O
a	O
MediaTek	O
Helio	O
A22	O
SoC	B-Architecture
and	O
2	O
GB	O
of	O
RAM	B-Architecture
.	O
</s>
<s>
All	O
the	O
devices	O
ship	O
with	O
Android	B-Application
9.0	I-Application
"	I-Application
Pie	I-Application
"	I-Application
with	O
a	O
new	O
HiOS	B-Operating_System
5.5	I-Operating_System
,	O
different	O
from	O
the	O
versions	O
found	O
on	O
Spark	O
3	O
and	O
Spark	O
3	O
Pro	O
.	O
</s>
<s>
The	O
HiOS	B-Operating_System
5.5	I-Operating_System
comes	O
with	O
an	O
AR	O
virtual	O
canvas	O
,	O
gesture	O
call	O
picker	O
,	O
game	O
mode	O
,	O
game	O
assistant	O
,	O
closed	O
eye	O
detection	O
and	O
fingerprint	O
reset	O
password	O
.	O
</s>
<s>
George	O
Kamau	O
from	O
Techweez	O
noted	O
that	O
Spark	O
4	O
looks	O
good	O
as	O
a	O
budget	O
phone	O
,	O
but	O
concluded	O
that	O
the	O
device	O
fails	O
in	O
the	O
competitive	O
budget	O
smartphones	B-Application
market	O
.	O
</s>
<s>
He	O
opined	O
that	O
the	O
features	O
is	O
okay	O
for	O
a	O
budget	O
smartphone	B-Application
.	O
</s>
