<s>
The	O
Sony	B-Device
Ericsson	I-Device
K800i	I-Device
,	O
and	O
its	O
variant	O
,	O
the	O
Sony	B-Device
Ericsson	I-Device
K790	I-Device
,	O
are	O
mobile	O
phone	O
handsets	O
manufactured	O
by	O
Sony	O
Ericsson	O
.	O
</s>
<s>
Launched	O
in	O
July	O
2006	O
(	O
for	O
the	O
K800i	B-Device
in	O
the	O
UK	O
market	O
;	O
others	O
may	O
vary	O
)	O
,	O
the	O
phones	O
are	O
the	O
successor	O
to	O
the	O
Sony	O
Ericsson	O
K750i	O
.	O
</s>
<s>
Both	O
of	O
the	O
phones	O
feature	O
a	O
3.2-megapixel	O
digital	B-Device
camera	I-Device
complete	O
with	O
a	O
xenon	B-Protocol
flash	O
,	O
a	O
protective	O
lens	O
cover	O
,	O
and	O
a	O
new	O
"	O
BestPic	O
"	O
bracketing	O
feature	O
,	O
and	O
are	O
the	O
first	O
to	O
be	O
tagged	O
with	O
the	O
Sony	B-Device
Cyber-shot	I-Device
branding	O
.	O
</s>
<s>
On	O
the	O
entertainment	O
front	O
,	O
the	O
phones	O
have	O
a	O
media	O
player	O
supporting	O
MP3	B-Application
,	O
AAC/AAC	O
+	O
/eAAC	O
+	O
and	O
WMA	B-Application
music	O
files	O
and	O
3GP/MPEG	O
-4	O
video	O
files	O
.	O
</s>
<s>
The	O
K790/K800	O
models	O
are	O
also	O
the	O
first	O
Sony	O
Ericsson	O
mobile	O
phones	O
to	O
use	O
ATI	O
's	O
Imageon	B-Device
2192	O
graphics	O
engine	O
,	O
which	O
delivers	O
a	O
full	O
3D	O
gaming	O
graphics	O
for	O
Java	B-Device
and	O
full	O
support	O
for	O
its	O
3.2-megapixel	O
camera	O
.	O
</s>
<s>
The	O
difference	O
between	O
the	O
two	O
phones	O
is	O
that	O
the	O
K790	B-Device
supports	O
GSM	O
and	O
EDGE	O
,	O
while	O
the	O
K800	B-Device
supports	O
UMTS	B-Protocol
and	O
GSM	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
the	O
K800i	B-Device
features	O
a	O
QCIF	B-Application
(	O
176X144	O
)	O
resolution	O
front-mounted	O
camera	O
for	O
3G	B-Architecture
video	O
conferencing	O
.	O
</s>
<s>
According	O
to	O
the	O
official	O
Sony	O
Ericsson	O
specifications	O
(	O
to	O
be	O
found	O
on	O
their	O
website	O
)	O
,	O
the	O
K800	B-Device
's	O
talk	O
time	O
drops	O
steeply	O
from	O
around	O
7	O
hours	O
when	O
using	O
GSM	O
to	O
about	O
2	O
hours	O
30	O
minutes	O
whilst	O
using	O
UMTS	B-Protocol
.	O
</s>
<s>
A	O
modified	O
version	O
of	O
the	O
K800i	B-Device
,	O
the	O
Sony	B-Device
Ericsson	I-Device
K810i	I-Device
,	O
was	O
released	O
.	O
</s>
<s>
Its	B-Device
successor	I-Device
is	O
the	O
5-megapixel	O
Sony	B-Device
Ericsson	I-Device
K850i	I-Device
.	O
</s>
<s>
The	O
K800i/K790	O
is	O
a	O
"	O
block	O
"	O
(	O
or	O
"	O
candy	O
bar	O
"	O
)	O
style	O
phone	O
that	O
weighs	O
115	O
grams	O
,	O
with	O
its	O
buttons	O
operated	O
by	O
the	O
thumb	O
.	O
</s>
<s>
It	O
has	O
the	O
"	O
dual-front	O
"	O
design	O
common	O
to	O
most	O
Sony	O
Ericsson	O
mobile	O
phones	O
since	O
the	O
Sony	O
Ericsson	O
K700	O
,	O
with	O
the	O
back	O
of	O
the	O
mobile	O
phone	O
designed	O
like	O
a	O
digital	B-Device
camera	I-Device
and	O
intended	O
to	O
be	O
held	O
sideways	O
to	O
take	O
photographs	O
.	O
</s>
<s>
The	O
central	O
joystick	B-Device
button	O
is	O
used	O
for	O
selecting	O
options	O
and	O
navigating	O
menus	O
,	O
with	O
the	O
"	O
C	O
"	O
button	O
as	O
an	O
undo	O
or	O
delete	O
key	O
,	O
and	O
the	O
arrow-labelled	O
button	O
as	O
a	O
"	O
back	O
button	O
"	O
.	O
</s>
<s>
On	O
the	O
right-hand	O
side	O
of	O
the	O
phone	O
there	O
are	O
three	O
keys	O
:	O
two	O
for	O
controlling	O
volume	B-Algorithm
,	O
skipping	O
through	O
tracks	O
in	O
the	O
Media	O
Player	O
,	O
changing	O
radio	O
channel	O
,	O
and	O
zooming	O
in	O
and	O
out	O
when	O
in	O
camera	O
mode	O
.	O
</s>
<s>
The	O
third	O
button	O
on	O
the	O
right	O
is	O
the	O
camera	O
shutter	O
button	O
which	O
operates	O
the	O
phone	O
's	O
key	O
feature	O
,	O
a	O
3.2-megapixel	O
Cyber-shot	B-Device
digital	B-Device
camera	I-Device
.	O
</s>
<s>
Communication	O
is	O
made	O
using	O
either	O
the	O
built-in	O
Bluetooth	B-Protocol
wireless	O
or	O
the	O
supplied	O
USB	B-Protocol
data	O
cable	O
,	O
which	O
connects	O
to	O
the	O
phone	O
using	O
Sony	O
Ericsson	O
's	O
proprietary	O
FastPort	O
connector	O
,	O
which	O
is	O
located	O
on	O
the	O
bottom	O
of	O
the	O
phone	O
.	O
</s>
<s>
The	O
phone	O
can	O
also	O
be	O
used	O
as	O
a	O
Bluetooth	B-Protocol
or	O
USB	B-Protocol
GPRS/3G	O
modem	B-Application
.	O
</s>
<s>
K800i/K790	O
cellphones	O
feature	O
full	O
support	O
for	O
USB	B-Protocol
mass	O
storage	O
recognition	O
.	O
</s>
<s>
This	O
means	O
that	O
there	O
will	O
be	O
no	O
need	O
for	O
driver	O
installation	O
on	O
modern	O
operating	O
systems	O
such	O
as	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
Windows	B-Application
XP	I-Application
and	O
Linux	B-Application
,	O
as	O
the	O
phone	O
will	O
be	O
automatically	O
recognized	O
as	O
an	O
external	O
storage	O
device	O
upon	O
connection	O
.	O
</s>
<s>
Data	O
retrieval	O
also	O
includes	O
the	O
ability	O
to	O
output	O
files	O
by	O
infra-red	O
and	O
Bluetooth	B-Protocol
(	O
as	O
well	O
as	O
in	O
network-transmitted	O
messages	O
)	O
to	O
other	O
devices	O
.	O
</s>
<s>
The	O
calendar	O
is	O
closely	O
compatible	O
with	O
Microsoft	B-Application
Outlook	I-Application
.	O
</s>
<s>
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
v10.4.9	O
added	O
support	O
for	O
calendar	O
and	O
contact	O
syncing	O
under	O
iSync	O
2.4	O
.	O
</s>
<s>
Since	O
the	O
release	O
of	O
its	B-Device
successor	I-Device
the	O
market	O
price	O
has	O
dramatically	O
fallen	O
and	O
,	O
as	O
of	O
November	O
2008	O
,	O
it	O
was	O
available	O
on	O
a	O
UK	O
pre-pay	O
network	O
between	O
£69.99	O
to	O
£89.99	O
.	O
</s>
<s>
Remote	O
Control	O
application	O
(	O
confirmed	O
on	O
K790i	B-Device
)	O
,	O
allows	O
you	O
to	O
use	O
your	O
phone	O
as	O
a	O
Human	B-General_Concept
interface	I-General_Concept
device	I-General_Concept
(	O
like	O
mouse	O
or	O
keyboard	O
)	O
via	O
Bluetooth	B-Protocol
.	O
</s>
<s>
Supported	O
on	O
host	O
computer	O
natively	O
by	O
Bluetooth	B-Protocol
stack	O
(	O
vendor-independent	O
)	O
.	O
</s>
<s>
Email	O
(	O
POP3	B-Protocol
and	O
IMAP4	B-Protocol
)	O
.	O
</s>
<s>
With	O
Push	B-General_Concept
e-mail	I-General_Concept
available	O
for	O
IMAP4	B-Protocol
.	O
</s>
<s>
For	O
some	O
users	O
,	O
the	O
K800i	B-Device
can	O
suddenly	O
and	O
unexpectedly	O
fail	O
to	O
startup	O
,	O
and	O
instead	O
just	O
show	O
a	O
flashing	O
white	O
screen	O
repeatedly	O
.	O
</s>
<s>
Users	O
are	O
recommended	O
to	O
regularly	O
backup	O
their	O
data	O
using	O
both	O
a	O
Memory	O
Stick	O
—	O
for	O
photos	O
and	O
contacts	O
—	O
and	O
using	O
the	O
software	O
MyPhoneExplorer	B-Application
to	O
back	O
up	O
text	O
messages	O
,	O
calendar	O
appointments	O
and	O
other	O
data	O
to	O
a	O
PC	O
.	O
</s>
<s>
Sometimes	O
dependent	O
on	O
age	O
of	O
phone/operating	O
system	O
the	O
K800i	B-Device
does	O
n't	O
show	O
in	O
PC	O
media	O
player	O
software	O
even	O
when	O
it	O
is	O
visible	O
as	O
mass	O
storage	O
.	O
</s>
