<s>
The	O
Olympus	B-Algorithm
Tough	I-Algorithm
TG-4	I-Algorithm
is	O
a	O
weatherised	O
digital	O
compact	O
camera	O
announced	O
by	O
Olympus	O
Corporation	O
on	O
April	O
13	O
,	O
2015	O
.	O
</s>
<s>
It	O
differs	O
from	O
its	O
predecessor	O
,	O
the	O
Olympus	O
Tough	O
TG-3	O
,	O
by	O
including	O
raw	B-Application
image	I-Application
recording	I-Application
.	O
</s>
<s>
In	O
2015	O
,	O
for	O
the	O
USA	O
market	O
,	O
the	O
MSRP	B-Protocol
for	O
the	O
older	O
TG-3	O
is	O
listed	O
at	O
$349	O
vs.	O
$379	O
for	O
the	O
newer	O
TG-4	O
.	O
</s>
<s>
The	O
camera	O
was	O
superseded	O
by	O
the	O
Olympus	B-Algorithm
Tough	I-Algorithm
TG-5	I-Algorithm
in	O
May	O
2017	O
.	O
</s>
