<s>
Samsung	B-Application
Health	I-Application
(	O
originally	O
S	B-Application
Health	I-Application
)	O
is	O
a	O
free	O
application	O
developed	O
by	O
Samsung	O
that	O
serves	O
to	O
track	O
various	O
aspects	O
of	O
daily	O
life	O
contributing	O
to	O
well	O
being	O
such	O
as	O
physical	O
activity	O
,	O
diet	O
,	O
and	O
sleep	O
.	O
</s>
<s>
Launched	O
on	O
2	O
July	O
2012	O
,	O
with	O
the	O
new	O
Samsung	O
smartphone	O
,	O
the	O
Galaxy	B-Application
S3	I-Application
,	O
the	O
application	O
was	O
installed	O
by	O
default	O
only	O
on	O
some	O
smartphones	O
of	O
the	O
brand	O
.	O
</s>
<s>
It	O
could	O
also	O
be	O
downloaded	O
from	O
the	O
Samsung	B-Application
Galaxy	I-Application
Store	I-Application
.	O
</s>
<s>
Since	O
mid-September	O
2015	O
,	O
the	O
application	O
is	O
available	O
to	O
all	O
Android	B-Application
users	O
.	O
</s>
<s>
From	O
2	O
October	O
2017	O
,	O
the	O
app	O
is	O
available	O
for	O
iPhones	O
from	O
iOS	B-Operating_System
9.0	I-Operating_System
.	O
</s>
<s>
The	O
app	O
changed	O
its	O
name	O
from	O
S	B-Application
Health	I-Application
to	O
Samsung	B-Application
Health	I-Application
on	O
4	B-Operating_System
April	O
2017	O
,	O
when	O
it	O
released	O
version	O
5.7.1	O
.	O
</s>
<s>
This	O
is	O
the	O
main	O
novelty	O
introduced	O
during	O
the	O
redesign	O
of	O
the	O
application	O
in	O
April	O
2015	O
in	O
version	O
4.1.0	O
.	O
</s>
<s>
The	O
availability	O
of	O
the	O
heart	O
rate	O
measurement	O
function	O
coincides	O
with	O
the	O
release	O
of	O
the	O
Samsung	B-Application
Galaxy	I-Application
S5	I-Application
which	O
has	O
a	O
built-in	O
sensor	O
.	O
</s>
<s>
On	O
Samsung	B-Application
Galaxy	I-Application
S5	I-Application
/	O
S5	B-Application
Neo	O
/	O
S6	B-Application
/	O
S7	B-Application
/	O
S8	B-Application
/	O
S9	B-Application
/	O
S10	B-Application
and	O
Edge	O
versions	O
as	O
well	O
as	O
Galaxy	B-Operating_System
Note	I-Operating_System
4	I-Operating_System
/	O
5	B-Application
/	O
7	B-Application
/	O
FE	O
/	O
8	B-Application
,	O
the	O
application	O
can	O
measure	O
the	O
heart	O
rate	O
with	O
the	O
sensor	O
on	O
the	O
back	O
of	O
the	O
device	O
.	O
</s>
<s>
The	O
heart	O
rate	O
measurement	O
feature	O
is	O
not	O
supported	O
on	O
Samsung	B-Application
Note	I-Application
10	O
's	O
and	O
Galaxy	B-Application
S10e	I-Application
's	O
.	O
</s>
<s>
Step	O
counting	O
is	O
a	O
feature	O
that	O
is	O
integrated	O
with	O
Samsung	B-Application
Health	I-Application
with	O
the	O
arrival	O
of	O
the	O
Samsung	B-Application
Galaxy	I-Application
S4	I-Application
in	O
April	O
2013	O
.	O
</s>
<s>
Global	O
challenges	O
were	O
added	O
at	O
the	O
end	O
of	O
May	O
2017	O
in	O
version	O
5.9.0.029	O
.	O
</s>
