<s>
Series	B-Operating_System
30+	I-Operating_System
(	O
abbreviated	O
as	O
S30+	B-Operating_System
)	O
is	O
a	O
software	B-Device
platform	I-Device
and	O
application	O
user	B-Application
interface	I-Application
used	O
for	O
Nokia-branded	O
mobile	B-Application
devices	I-Application
.	O
</s>
<s>
The	O
platform	O
was	O
introduced	O
by	O
Nokia	O
in	O
September	O
2013	O
,	O
first	O
appearing	O
on	O
the	O
Nokia	B-Operating_System
108	I-Operating_System
,	O
and	O
has	O
been	O
the	O
main	O
Nokia	O
feature	B-Device
phone	I-Device
operating	O
system	O
after	O
the	O
end	O
of	O
the	O
Series	B-Operating_System
30	I-Operating_System
and	O
Series	B-Operating_System
40	I-Operating_System
platforms	B-Device
in	O
2014	O
.	O
</s>
<s>
Despite	O
the	O
similar	O
name	O
and	O
user	B-Application
interface	I-Application
,	O
S30+	B-Operating_System
is	O
technically	O
completely	O
different	O
and	O
unrelated	O
to	O
S30	O
.	O
</s>
<s>
Many	O
S30+	B-Operating_System
devices	O
only	O
support	O
MAUI	O
Runtime	O
Environment	O
,	O
and	O
application	O
file	O
(	O
.vxp	O
)	O
developed	O
by	O
MediaTek	B-Architecture
,	O
but	O
some	O
later	O
devices	O
have	O
included	O
support	O
for	O
J2ME	B-Language
applications	O
.	O
</s>
<s>
Even	O
for	O
models	O
that	O
do	O
n't	O
support	O
Java	B-Language
J2ME	I-Language
applications	O
,	O
some	O
are	O
still	O
capable	O
of	O
running	O
something	O
.	O
</s>
<s>
Some	O
S30+	B-Operating_System
models	O
also	O
come	O
with	O
an	O
online	O
shop	O
that	O
would	O
allow	O
downloading	O
new	O
apps	O
and	O
games	O
.	O
</s>
<s>
Some	O
newer	O
phone	O
models	O
with	O
"	O
Series	B-Operating_System
30+	I-Operating_System
"	O
platform	O
are	O
said	O
to	O
be	O
based	O
on	O
RTOS	B-Operating_System
.	O
</s>
<s>
The	O
following	O
feature	B-Device
phones	I-Device
use	O
the	O
Series	B-Operating_System
30+	I-Operating_System
platform	O
and	O
are	O
all	O
available	O
as	O
both	O
single	O
and	O
Dual	O
SIM	O
models	O
.	O
</s>
<s>
Nokia	B-Operating_System
108	I-Operating_System
released	O
in	O
2013	O
is	O
a	O
Series	B-Operating_System
30+	I-Operating_System
based	O
device	O
with	O
support	O
for	O
camera	O
,	O
video	O
and	O
Bluetooth	O
technology	O
.	O
</s>
<s>
Nokia	B-Operating_System
220	I-Operating_System
was	O
released	O
in	O
2014	O
with	O
2.4-inch	O
display	O
and	O
having	O
Nokia	O
Xpress	O
browser	O
and	O
GPRS	O
data	O
connection	O
(	O
2.5G	O
)	O
.	O
</s>
<s>
Nokia	B-Operating_System
225	I-Operating_System
,	O
released	O
in	O
2014	O
,	O
is	O
similar	O
to	O
the	O
220	O
but	O
has	O
a	O
larger	O
2.8-inch	O
display	O
.	O
</s>
<s>
Nokia	B-Algorithm
130	I-Algorithm
is	O
a	O
smaller	O
device	O
with	O
a	O
1.8-inch	O
display	O
,	O
also	O
released	O
in	O
2014	O
.	O
</s>
<s>
Nokia	B-Algorithm
215	I-Algorithm
was	O
announced	O
in	O
January	O
2015	O
.	O
</s>
<s>
Nokia	B-Algorithm
105	I-Algorithm
(	O
2015	O
)	O
is	O
a	O
device	O
announced	O
in	O
June	O
2015	O
,	O
it	O
notably	O
had	O
increased	O
storage	O
and	O
could	O
store	O
over	O
2.000	O
contacts	O
and	O
last	O
35	O
days	O
on	O
standby	O
,	O
and	O
is	O
advertised	O
as	O
a	O
backup	O
telephone	O
for	O
smartphone	O
users	O
.	O
</s>
<s>
Nokia	B-Algorithm
222	I-Algorithm
is	O
a	O
device	O
announced	O
in	O
August	O
2015	O
.	O
</s>
<s>
The	O
differentiation	O
from	O
its	O
predecessors	O
is	O
that	O
it	O
comes	O
with	O
Skype	B-Application
's	I-Application
GroupMe	B-Protocol
application	O
preinstalled	O
,	O
supports	O
J2ME	B-Language
applications	O
.	O
</s>
<s>
It	O
is	O
identical	O
in	O
features	O
to	O
the	O
Nokia	B-Algorithm
215	I-Algorithm
with	O
the	O
main	O
difference	O
being	O
the	O
front	O
facing	O
camera	O
and	O
a	O
slight	O
redesign	O
.	O
</s>
<s>
Photos	O
surfaced	O
in	O
2018	O
showed	O
a	O
redesigned	O
user	B-Application
interface	I-Application
,	O
featuring	O
elements	O
of	O
Windows	O
10	O
Mobile	O
design	O
language	O
and	O
Microsoft	O
Account	O
integration	O
.	O
</s>
<s>
The	O
Series	B-Operating_System
30+	I-Operating_System
is	O
integrated	O
only	O
on	O
the	O
2G	O
version	O
.	O
</s>
<s>
Nokia	B-Algorithm
105	I-Algorithm
(	O
2017	O
)	O
was	O
announced	O
on	O
17	O
July	O
2017	O
.	O
</s>
<s>
Nokia	B-Algorithm
130	I-Algorithm
(	O
2017	O
)	O
was	O
announced	O
on	O
17	O
July	O
2017	O
.	O
</s>
<s>
Nokia	B-Algorithm
105	I-Algorithm
(	O
2019	O
)	O
was	O
announced	O
on	O
24	O
July	O
2019	O
.	O
</s>
<s>
Nokia	B-Operating_System
110	I-Operating_System
(	O
2019	O
)	O
was	O
announced	O
on	O
5	O
September	O
2019	O
.	O
</s>
<s>
Nokia	B-Algorithm
215	I-Algorithm
4G	O
(	O
2020	O
)	O
was	O
announced	O
on	O
10	O
October	O
2020	O
.	O
</s>
<s>
Nokia	B-Operating_System
225	I-Operating_System
4G	O
(	O
2020	O
)	O
was	O
announced	O
on	O
10	O
October	O
2020	O
.	O
</s>
