<s>
The	O
Kobo	B-Application
Aura	I-Application
HD	I-Application
(	O
also	O
called	O
the	O
Aura	O
HD	O
)	O
is	O
a	O
limited-edition	O
Kobo	O
eReader	O
device	O
designed	O
and	O
marketed	O
by	O
Kobo	O
Inc	O
.	O
</s>
<s>
The	O
marketing	O
slogan	O
of	O
the	O
Kobo	B-Application
Aura	I-Application
HD	I-Application
was	O
"	O
The	O
eReader	O
,	O
reimagined.	O
"	O
</s>
<s>
In	O
October	O
2014	O
the	O
Kobo	O
Aura	O
H2O	O
was	O
launched	O
,	O
it	O
has	O
a	O
similar	O
screen	O
resolution	O
to	O
the	O
Kobo	B-Application
Aura	I-Application
HD	I-Application
but	O
has	O
a	O
waterproof	O
coating	O
.	O
</s>
<s>
Kobo	O
's	O
CEO	O
announced	O
in	O
March	O
2015	O
that	O
the	O
Kobo	B-Application
Aura	I-Application
HD	I-Application
was	O
officially	O
discontinued	O
.	O
</s>
<s>
The	O
hallmark	O
feature	O
of	O
this	O
device	O
was	O
the	O
display	O
-	O
at	O
6.8	O
inches	O
(	O
diagonal	O
)	O
it	O
was	O
larger	O
than	O
other	O
popular	O
e-book	O
readers	O
such	O
as	O
the	O
Kobo	O
Glo	O
,	O
Kindle	B-General_Concept
Paperwhite	I-General_Concept
,	O
and	O
Nook	B-Application
Simple	I-Application
Touch	I-Application
with	I-Application
Glowlight	I-Application
with	O
screens	O
of	O
6	O
inches	O
.	O
</s>
<s>
Kobo	B-Application
Aura	I-Application
HD	I-Application
runs	O
on	O
the	O
Kobo	O
Firmware	O
,	O
based	O
on	O
the	O
Linux	B-Application
kernel	B-Operating_System
.	O
</s>
<s>
The	O
main	O
application	O
,	O
the	O
digital	O
reader	O
,	O
supports	O
a	O
variety	O
of	O
ebook	O
formats	O
:	O
ePub	O
,	O
PDF	B-Application
,	O
Adobe	O
DRM	O
,	O
RTF	O
,	O
HTML	B-Language
,	O
TXT	B-General_Concept
,	O
Comic	O
Book	O
Archive	O
file	O
,	O
JPEG	O
,	O
PNG	O
,	O
BMP	B-Device
,	O
GIF	O
,	O
and	O
TIFF	O
.	O
</s>
<s>
The	O
Kobo	B-Application
Aura	I-Application
HD	I-Application
also	O
provides	O
statistics	O
about	O
reading	O
progress	O
:	O
average	O
reading	O
time	O
per	O
session	O
,	O
total	O
time	O
read	O
,	O
pages	O
turned	O
,	O
and	O
the	O
percentage	O
of	O
books	O
completed	O
.	O
</s>
<s>
The	O
reception	O
of	O
the	O
Kobo	B-Application
Aura	I-Application
HD	I-Application
was	O
generally	O
positive	O
.	O
</s>
<s>
Reviewers	O
appreciated	O
the	O
larger	O
screen	O
,	O
the	O
increased	O
pixel	B-Algorithm
density	I-Algorithm
,	O
the	O
ComfortLight	O
,	O
and	O
the	O
abundant	O
storage	O
options	O
.	O
</s>
