<s>
ColorOS	B-Application
is	O
a	O
mobile	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
created	O
by	O
Oppo	O
Electronics	O
based	O
on	O
the	O
Android	B-Application
Open	B-License
Source	I-License
Project	O
.	O
</s>
<s>
Initially	O
,	O
Realme	O
phones	O
used	O
ColorOS	B-Application
until	O
it	O
was	O
replaced	O
by	O
Realme	O
UI	O
in	O
2020	O
.	O
</s>
<s>
Realme	O
is	O
still	O
a	O
family	O
of	O
Oppo	O
(	O
ColorOS	B-Application
)	O
Realme	O
UI	O
uses	O
some	O
of	O
ColorOS	B-Application
apps	O
Starting	O
from	O
OnePlus	B-Application
9	I-Application
series	I-Application
OnePlus	O
will	O
preinstall	O
ColorOS	B-Application
on	O
all	O
smartphones	O
that	O
are	O
sold	O
in	O
mainland	O
China	O
instead	O
of	O
HydrogenOS	B-Application
(	O
Chinese	O
version	O
of	O
OxygenOS	B-Application
)	O
.	O
</s>
<s>
The	O
first	O
version	O
of	O
ColorOS	B-Application
was	O
launched	O
in	O
September	O
2013	O
.	O
</s>
<s>
Oppo	O
had	O
released	O
plenty	O
of	O
Android	B-Application
smartphones	O
before	O
then	O
.	O
</s>
<s>
It	O
was	O
not	O
stock	O
Android	B-Application
,	O
but	O
Oppo	O
did	O
not	O
label	O
it	O
as	O
ColorOS	B-Application
.	O
</s>
<s>
To	O
make	O
things	O
less	O
confusing	O
,	O
in	O
2020	O
the	O
company	O
revealed	O
that	O
it	O
would	O
adept	O
the	O
same	O
numbering	O
scheme	O
as	O
mainline	O
Android	B-Application
,	O
such	O
as	O
ColorOS	B-Application
jumped	O
from	O
ColorOS7	O
to	O
ColorOS	B-Application
11	B-Application
.	O
</s>
<s>
In	O
the	O
future	O
,	O
ColorOS	B-Application
,	O
OnePlus’	O
Oxygen	B-Application
OS	I-Application
and	O
Realme	O
UI	O
will	O
merge	O
together	O
that	O
will	O
appear	O
on	O
all	O
OnePlus	O
,	O
Oppo	O
and	O
Realme	O
UI	O
phones	O
.	O
</s>
