<s>
Smartisan	B-Application
OS	I-Application
is	O
an	O
Android-based	B-Application
smartphone	B-Application
platform	O
developed	O
by	O
Chinese	O
company	O
Smartisan	O
.	O
</s>
<s>
It	O
is	O
a	O
custom	O
ROM	B-Device
for	O
smartphones	B-Application
and	O
potentially	O
tablet	O
devices	O
.	O
</s>
<s>
The	O
first	O
smartphone	B-Application
to	O
utilize	O
Smartisan	B-Application
OS	I-Application
is	O
the	O
Smartisan	O
T1	O
.	O
</s>
<s>
The	O
CEO	O
of	O
Smartisan	O
Co.	O
,	O
Ltd.	O
,	O
Luo	O
Yonghao	O
,	O
said	O
on	O
Sina	B-Protocol
Weibo	I-Protocol
that	O
"	O
Smartisan	O
"	O
is	O
a	O
portmanteau	O
of	O
"	O
Smart	O
"	O
and	O
"	O
Artisan	O
"	O
.	O
</s>
<s>
Smartisan	B-Application
OS	I-Application
was	O
unveiled	O
on	O
March	O
27	O
,	O
2013	O
at	O
the	O
China	O
National	O
Convention	O
Center	O
.	O
</s>
<s>
It	O
will	O
compete	O
with	O
MIUI	B-Protocol
from	O
Xiaomi	O
and	O
Flyme	O
OS	O
from	O
Meizu	O
in	O
the	O
Chinese	O
cellphone	O
market	O
.	O
</s>
<s>
It	O
will	O
initially	O
be	O
compatible	O
with	O
Samsung	B-Application
Galaxy	I-Application
S	I-Application
III	I-Application
plus	O
a	O
few	O
other	O
devices	O
,	O
followed	O
by	O
Smartisan	O
's	O
own	O
hardware	O
the	O
following	O
year	O
,	O
after	O
which	O
no	O
third-party	O
devices	O
will	O
be	O
supported	O
.	O
</s>
<s>
In	O
May	O
2014	O
Smartisan	O
Co	O
.	O
introduced	O
their	O
first	O
smartphone	B-Application
,	O
the	O
Smartisan	O
T1	O
.	O
</s>
<s>
A	O
year	O
later	O
on	O
August	O
26	O
,	O
2015	O
,	O
the	O
Smartisan	O
U1	O
was	O
announced	O
,	O
with	O
Smartisan	B-Application
OS	I-Application
2.0	O
taking	O
on	O
the	O
likes	O
of	O
OnePlus	B-Application
2	I-Application
and	O
Meizu	O
M2	O
Note	O
.	O
</s>
<s>
In	O
May	O
2018	O
Smartisan	O
Co	O
.	O
has	O
announced	O
their	O
Smartphone	B-Application
model	O
R1	O
that	O
comes	O
equipped	O
with	O
the	O
Smartisan	B-Application
OS	I-Application
.	O
</s>
