<s>
The	O
Olio	B-Device
Model	I-Device
One	I-Device
is	O
a	O
discontinued	O
smartwatch	B-Application
sold	O
from	O
2015	O
to	O
2016	O
by	O
the	O
now	O
defunct	O
Olio	O
Devices	O
,	O
Inc	O
.	O
</s>
<s>
The	O
Olio	O
features	O
a	O
single-core	B-Operating_System
600	O
MHz	O
Texas	O
Instruments	O
OMAP3430	O
CPU	O
,	O
512	O
megabytes	O
of	O
LPDDR	O
RAM	B-Architecture
,	O
1	O
gigabyte	O
of	O
NAND	O
flash	O
memory	O
,	O
a	O
Broadcom	O
BCM20702	O
Low	O
Energy-capable	O
Bluetooth	B-Protocol
4.0	O
transceiver	O
,	O
a	O
Texas	O
Instruments	O
DRV2605	O
Haptic	B-Device
Driver	I-Device
,	O
an	O
ambient	O
light	O
sensor	O
,	O
a	O
microphone	B-Application
,	O
a	O
rechargeable	O
lithium	O
polymer	O
battery	O
,	O
a	O
wireless	B-Application
charging	I-Application
coil	I-Application
,	O
and	O
a	O
touchscreen	B-Device
.	O
</s>
<s>
The	O
Bluetooth	B-Protocol
MAC	O
address	O
of	O
every	O
Olio	O
watch	O
starts	O
with	O
B0:C5:CA:D0	O
.	O
</s>
<s>
The	O
Olio	O
watch	O
comes	O
preinstalled	O
with	O
the	O
Android	B-Application
operating	I-Application
system	I-Application
with	O
a	O
custom	O
user	B-Application
interface	I-Application
and	O
startup	O
logo	O
.	O
</s>
<s>
The	O
system	O
uses	O
the	O
Das	B-Language
U-Boot	I-Language
bootloader	O
.	O
</s>
<s>
At	O
first	O
boot	O
,	O
the	O
watch	O
will	O
instruct	O
the	O
user	O
to	O
create	O
a	O
Bluetooth	B-Protocol
pairing	O
between	O
the	O
watch	O
and	O
a	O
smartphone	O
.	O
</s>
<s>
Although	O
previously	O
available	O
for	O
iOS	B-Application
on	O
the	O
App	B-Application
Store	I-Application
and	O
for	O
Android	B-Application
on	O
Google	B-Application
Play	I-Application
,	O
the	O
Olio	O
Assist	O
app	O
is	O
no	O
longer	O
available	O
on	O
either	O
.	O
</s>
<s>
The	O
Olio	O
Smartwatch	B-Application
and	O
the	O
Olio	O
Assist	O
app	O
communicate	O
over	O
a	O
custom	O
RFCOMM	O
protocol	O
.	O
</s>
<s>
At	O
this	O
point	O
,	O
the	O
watch	O
and	O
app	O
communicate	O
with	O
a	O
binary	O
format	O
based	O
on	O
MessagePack	B-Protocol
.	O
</s>
<s>
This	O
protocol	O
can	O
be	O
used	O
to	O
update	O
the	O
watch	O
's	O
underlying	O
Android	B-Application
system	I-Application
:	O
zip	B-General_Concept
archives	I-General_Concept
sent	O
over	O
this	O
protocol	O
will	O
be	O
extracted	O
to	O
the	O
directory	O
/data/media/0/olio/firmware_updates_apply/	O
in	O
the	O
internal	O
filesystem	O
;	O
then	O
,	O
the	O
watch	O
executes	O
the	O
file	O
/data/media/0/olio/firmware_updates_apply/update.sh	O
(	O
/update.sh	O
in	O
the	O
archive	O
)	O
as	O
root	O
.	O
</s>
<s>
The	O
Olio	O
watch	O
includes	O
several	O
pieces	O
of	O
software	O
licensed	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
,	O
such	O
as	O
the	O
Linux	O
kernel	O
and	O
U-Boot	O
,	O
but	O
Olio	O
Devices	O
never	O
released	O
the	O
source	O
code	O
to	O
any	O
of	O
this	O
software	O
,	O
thus	O
violating	O
the	O
General	B-License
Public	I-License
License	I-License
.	O
</s>
<s>
Furthermore	O
,	O
the	O
Model	O
One	O
was	O
designed	O
to	O
be	O
modular	B-Architecture
,	O
so	O
that	O
individual	O
components	O
could	O
be	O
upgraded	O
without	O
replacing	O
the	O
whole	O
device	O
.	O
</s>
