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Basic Information
This section provides the names of each
watch part, as well as basic information and
operations you need to know.
General Guide
A button
While the current time screen is displayed,
press and hold this button for at least two
seconds to switch to the Control Mode.
While a setting screen is displayed, pressing
this button scrolls available menu items
upwards.
B button
Press to turn on illumination.
C button
Press this button while the current time screen
is displayed to switch to Activity Mode.
Pressing this button while any mode setting
screen is displayed applies all of the screen's
pending settings and changes.
D button
Pressing this button while a setting screen is
displayed scrolls available menu items
downwards.
E button
Hold down this button for at least one second
to return to the current time screen.
While configuring settings, pressing this
button goes back to the previous screen.
Optical sensor (heart rate detection)
A
Detects your pulse for heart rate
measurement.
Charging terminal
B
Plug in the charger cable here to connect to a
device with a USB terminal for charging.
Charging with the Charger Cable
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Watch Operation Guide 3515
Indicators
Watch Mode
③
④
⑤
①
⑥ ⑦
Airplane Mode/Bluetooth icon
A
: Displayed while the Airplane Mode is
enabled.
: Displayed while there is a connection
e
②
between the watch and a phone.
While re-connection with your phone is
●
being attempted after loss of the
connection, this indicator flashes at
one-second intervals.
While re-connection with your phone is
●
not being attempted after loss of the
connection, this indicator flashes at
two-second intervals.
Appears when there are new notifications
B
on your phone.
Displayed during p.m. times while 12-hour
C
timekeeping is being used.
Displayed when the indicated time is
D
summer time.
Shows the current battery level.
E
Displayed while barometric pressure
F
change indication is enabled.
Displayed when an alarm or the smart
G
alarm snooze function is turned on.
Displayed when an alarm or the smart
H
alarm is turned on.
Airplane Mode/GPS icon
I
: Displayed while the Airplane Mode is
enabled.
: Indicates GPS receive is in progress.
Activity Mode
①
②
⑨
⑧
Viewing the Face in the Dark
The watch has a light that illuminates the face
for viewing in the dark.
The light turns on each time you perform a
●
button operation.
To illuminate the face manually
●
Press (B) to turn on illumination.
Illumination will turn off automatically if an
●
alarm starts to sound.
Using Auto Light
●
If Auto Light is enabled, face illumination will
turn on automatically whenever the watch is
positioned at an angle of 40 degrees or more.
For information about enabling Auto Light, see
the information below.
Configuring the Auto Light Setting
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Important!
Auto Light may not operate properly
●
when the watch is at a horizontal angle
of 15 degrees or greater from
horizontal as shown in the illustration
below.
Electro-static charge or magnetism
●
can interfere with proper auto light
operation. If this happens, try lowering
your arm and then angle it towards
your face again.
When moving the watch you may note
●
a slight rattling sound. This is due to
operation of the auto light switch,
which determines the current
orientation of the watch. It does not
indicate malfunction.
40
degrees
or more
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