<s>
KaiOS	B-Device
is	O
a	O
mobile	B-Operating_System
Linux	B-Application
distribution	I-Application
for	O
keypad	O
feature	B-Device
phones	I-Device
based	O
on	O
the	O
Firefox	B-Operating_System
OS	I-Operating_System
open-source	O
project	O
.	O
</s>
<s>
It	O
is	O
developed	O
by	O
KaiOS	B-Device
Technologies	O
(	O
Hong	O
Kong	O
)	O
Limited	O
;	O
a	O
company	O
based	O
in	O
Hong	O
Kong	O
,	O
whose	O
largest	O
shareholder	O
is	O
Chinese	O
multinational	O
electronics	O
conglomerate	O
TCL	O
Corporation	O
.	O
</s>
<s>
KaiOS	B-Device
runs	O
on	O
feature	B-Device
phones	I-Device
made	O
with	O
low-power	O
hardware	O
and	O
low	O
power	O
consumption	O
(	O
and	O
therefore	O
long	O
battery	O
life	O
)	O
.	O
</s>
<s>
KaiOS	B-Device
supports	O
modern	O
connectivity	O
technologies	O
like	O
4G	B-Architecture
LTE	O
E	O
,	O
VoLTE	O
,	O
GPS	O
,	O
and	O
Wi-Fi	O
.	O
</s>
<s>
KaiOS	B-Device
runs	O
HTML5-based	O
apps	O
.	O
</s>
<s>
KaiOS	B-Device
supports	O
over-the-air	O
updates	O
and	O
has	O
KaiStore	O
,	O
a	O
dedicated	O
app	O
marketplace	O
.	O
</s>
<s>
Some	O
applications	O
are	O
preloaded	O
,	O
including	O
Facebook	B-Application
and	O
YouTube	B-General_Concept
.	I-General_Concept
</s>
<s>
The	O
mobile	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
is	O
comparatively	O
lightweight	O
on	O
hardware	O
resource	O
usage	O
,	O
and	O
is	O
able	O
to	O
run	O
on	O
devices	O
with	O
just	O
256	O
megabytes	O
(	O
MB	O
)	O
of	O
memory	O
.	O
</s>
<s>
The	O
operating	O
system	O
was	O
first	O
released	O
in	O
2017	O
,	O
and	O
is	O
developed	O
by	O
KaiOS	B-Device
Technologies	O
Inc.	O
,	O
a	O
Hong	O
Kong-based	O
company	O
headed	O
by	O
CEO	O
Sebastien	O
Codeville	O
,	O
with	O
offices	O
in	O
other	O
countries	O
.	O
</s>
<s>
In	O
June	O
2018	O
,	O
Google	B-Application
invested	O
US$22	O
million	O
in	O
the	O
operating	O
system	O
.	O
</s>
<s>
In	O
May	O
2019	O
,	O
KaiOS	B-Device
raised	O
an	O
additional	O
US$50	O
million	O
from	O
Cathay	O
Innovation	O
,	O
and	O
previous	O
investors	O
Google	B-Application
and	O
TCL	O
Holdings	O
.	O
</s>
<s>
In	O
market	O
share	O
study	O
results	O
announced	O
in	O
May	O
2018	O
,	O
KaiOS	B-Device
beat	O
Apple	O
's	O
iOS	B-Application
for	O
second	O
place	O
in	O
India	O
,	O
while	O
Android	O
dominates	O
with	O
71%	O
,	O
albeit	O
down	O
by	O
9%	O
.	O
</s>
<s>
KaiOS	B-Device
growth	O
is	O
being	O
largely	O
attributed	O
to	O
the	O
popularity	O
of	O
the	O
competitively-priced	O
JioPhone	O
.	O
</s>
<s>
In	O
Q1	O
2018	O
,	O
23	O
million	O
KaiOS	B-Device
devices	O
were	O
produced	O
.	O
</s>
<s>
In	O
March	O
2020	O
,	O
Mozilla	B-Operating_System
and	O
KaiOS	B-Device
Technologies	O
announced	O
a	O
partnership	O
to	O
update	O
KaiOS	B-Device
with	O
a	O
modern	O
version	O
of	O
the	O
Gecko	B-Language
browser	I-Language
engine	I-Language
,	O
and	O
more	O
closely	O
aligned	O
testing	O
infrastructure	O
.	O
</s>
<s>
This	O
change	O
should	O
give	O
KaiOS	B-Device
four	O
years	O
worth	O
of	O
performance	O
and	O
security	O
improvements	O
and	O
new	O
features	O
,	O
including	O
TLS	O
1.3	O
,	O
WebAssembly	B-Language
,	O
WebGL	B-Library
2.0	I-Library
,	O
Progressive	B-Application
Web	I-Application
Apps	I-Application
,	O
new	O
video	B-Application
codecs	I-Application
like	O
WebP	O
,	O
AV1	B-Application
,	O
and	O
modern	O
JavaScript	B-Language
and	O
Cascading	B-Language
Style	I-Language
Sheets	I-Language
(	O
CSS	B-Language
)	O
features	O
.	O
</s>
<s>
Devices	O
that	O
are	O
installed	O
with	O
KaiOS	B-Device
include	O
(	O
KaiStore	O
may	O
not	O
be	O
included	O
,	O
if	O
device	O
vendor	O
removed	O
it	O
)	O
:	O
</s>
<s>
WizPhone	O
WP006	O
,	O
launched	O
in	O
Indonesia	O
in	O
partnership	O
with	O
Google	B-Application
and	O
Alfamart	O
.	O
</s>
<s>
All	O
KaiOS	B-Device
devices	O
have	O
ABC	O
keypad	O
with	O
exceptions	O
being	O
Jiophone	O
2	O
and	O
Ghia	O
GQWERTY	O
having	O
a	O
QWERTY	O
keypad	O
.	O
</s>
<s>
,	O
KaiOS	B-Device
Technologies	O
has	O
partnered	O
with	O
Mozilla	B-Operating_System
,	O
Airfind	O
,	O
Avenir	O
Telecom	O
(	O
Energizer	O
)	O
,	O
Facebook	B-Application
,	O
Google	B-Application
,	O
Bullitt	B-Application
,	O
Doro	O
,	O
HMD	O
Global	O
,	O
Micromax	O
,	O
NXP	O
,	O
Spreadtrum	O
,	O
Qualcomm	O
,	O
Jio	O
,	O
Sprint	O
,	O
AT&T	O
,	O
T-Mobile	O
,	O
and	O
Orange	O
S.A.	O
</s>
<s>
In	O
March	O
2020	O
,	O
KaiOS	B-Device
Technologies	O
partnered	O
with	O
Mozilla	B-Operating_System
to	O
bring	O
the	O
modern	O
version	O
of	O
Gecko	B-Language
browser	I-Language
engine	I-Language
to	O
future	O
KaiOS	B-Device
builds	O
.	O
</s>
<s>
versionannouncednew	O
featuresmobile	O
phones1.0March	O
2017First	O
KaiOS	B-Device
smart	O
feature	O
flip	O
phone	O
2.0July	O
2017Major	O
core	O
upgrade	O
to	O
Gecko	B-Language
48	O
2.5.0November	O
2017Services	O
and	O
3rd	O
party	O
appsNokia	O
8110	O
4G2.5.1July	O
2018KaiStore	O
,	O
KaiAccount	O
,	O
and	O
advanced	O
features	O
,	O
WhatsApp	O
2.5.1.1September	O
2018Minor	O
system	O
updates	O
2.5.2December	O
2018KaiAds	O
and	O
SIMbased	O
cust.Nokia	O
2720	O
Flip	O
,	O
Nokia	O
800	O
Tough2.5.3July	O
2019Major	O
service	O
upgrades	O
,	O
location	O
service	O
enhancement	O
2.5.3.1February	O
2020Minor	O
system	O
updates	O
,	O
notification	O
enhancement	O
2.5.3.2May	O
2020Device	O
Financing	O
Program	O
,	O
Dual	O
SIM	O
LTE	O
support	O
Gigaset	O
GL72.5.4August	O
2020	O
LF	O
1.6	O
integration	O
,	O
North	O
America	O
requirementNokia	O
6300	O
4G	B-Architecture
,	O
Nokia	O
8000	O
4G3.0September	O
2021Major	O
platform	O
Upgrade	O
,	O
Gecko	B-Language
upgrade	O
from	O
version	O
48	O
(	O
2016	O
)	O
to	O
version	O
84	O
(	O
December	O
2020	O
)	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
the	O
Nokia	O
8110	O
4G	B-Architecture
,	O
an	O
active	O
community	O
around	O
both	O
KaiOS	B-Device
and	O
the	O
phone	O
arose	O
and	O
released	O
the	O
first	O
version	O
of	O
a	O
jailbreak	O
.	O
</s>
<s>
This	O
gave	O
users	O
the	O
ability	O
to	O
use	O
apps	O
outside	O
KaiStore	O
including	O
old	O
Firefox	B-Operating_System
OS	I-Operating_System
apps	O
on	O
KaiOS	B-Device
devices	O
,	O
as	O
well	O
as	O
flashing	O
their	O
devices	O
with	O
community-created	O
ROMs	O
,	O
such	O
as	O
GerdaOS	O
.	O
</s>
