<s>
The	O
Apple	B-Device
S2	I-Device
is	O
the	O
integrated	O
computer	O
in	O
the	O
Apple	B-Device
Watch	I-Device
Series	I-Device
2	I-Device
,	O
and	O
it	O
is	O
described	O
as	O
a	O
"	O
System	B-Algorithm
in	I-Algorithm
Package	I-Algorithm
"	O
(	O
SiP	O
)	O
by	O
Apple	O
Inc	O
.	O
</s>
<s>
Apple	O
says	O
its	O
two	O
cores	O
deliver	O
50%	O
higher	O
performance	O
and	O
the	O
GPU	O
delivers	O
twice	O
as	O
much	O
as	O
the	O
predecessor	O
,	O
the	O
Apple	B-Device
S1	I-Device
.	O
</s>
<s>
The	O
S1P	O
SiP	O
shipped	O
in	O
the	O
Apple	B-Device
Watch	I-Device
Series	I-Device
1	I-Device
is	O
a	O
stripped	O
down	O
version	O
of	O
the	O
S2	O
that	O
lacks	O
the	O
GPS	O
functionality	O
,	O
it	O
is	O
otherwise	O
identical	O
.	O
</s>
<s>
It	O
uses	O
a	O
customized	O
application	B-Architecture
processor	I-Architecture
that	O
together	O
with	O
512	O
MB	O
memory	B-Architecture
,	O
8	O
GB	O
storage	B-Device
and	O
support	O
processors	O
for	O
wireless	O
connectivity	O
,	O
GPS	O
,	O
sensors	O
and	O
I/O	B-General_Concept
constitute	O
a	O
complete	O
computer	O
in	O
a	O
single	O
package	O
.	O
</s>
<s>
This	O
package	O
is	O
filled	O
with	O
resin	B-Language
for	O
durability	O
.	O
</s>
<s>
The	O
device	O
integrates	O
discrete	O
components	O
like	O
Wi-Fi	O
,	O
Bluetooth	B-Protocol
,	O
GPS	O
,	O
NFC	O
,	O
touch	O
controller	O
,	O
accelerometers	O
,	O
barometric	O
sensor	O
and	O
RAM	B-Architecture
.	O
</s>
