Linking with a Phone
While there is a Bluetooth connection between the watch and phone (Mobile Link), the watch’s current time setting is corrected automatically. You can also change the watch’s other settings.
Note
This function is available only while the CASIO WATCHES phone app is running on the phone.
This section describes watch and phone operations.
: Watch operation
: Phone operation
Getting Ready
To use your watch in combination with a phone, you first need to pair them. Perform the steps below to pair the watch with a phone.
Install the app on your phone.
Configure Bluetooth settings.
Pair the watch with a phone.
Install the app on your phone.
To use the watch with a phone, first tap one of the links below and install the “CASIO WATCHES” app on the phone.
Configure Bluetooth settings.
Enable the phone’s Bluetooth.
Note
For details about setting procedures, see your phone documentation.
Pair the watch with a phone.
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Move the phone to be paired with close to (within one meter of) the watch.
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Tap the “CASIO WATCHES” icon.
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Tap the
of the “My Watch” tab. -
Perform the operation shown on the phone screen to register the watch to the CASIO WATCHES phone app.
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Hold down (C) for at least three seconds. Release the button when
and [CNCT] start to flash.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
At this time, the time settings of your phone and watch are synced with each other.
If pairing fails for some reason, [ERR] appears on the display momentarily and then the watch returns to the Timekeeping Mode. Perform the pairing procedure again from the beginning.
This completes the pairing operation.
Once paired, the smartphone and watch automatically connect to synchronize the watch’s time setting with that of the smartphone.
Note
The first time you start up the CASIO WATCHES phone app, a message will appear on your phone asking if you want to enable location information acquisition. Configure settings to allow background use of location information.
Auto Time Correction
Your watch connects with a phone at preset times each day and correct its time settings automatically.
Using This Function
Your watch corrects its time setting four times a day according to a preset schedule. If you leave your watch in the Timekeeping Mode, it will perform the correction operation automatically as you go about your daily life, without any operation required by you.
Important!
The watch may not be able to perform auto time correction under the conditions described below.
While the watch is too far away from its paired phone
While communication is not possible due to radio interference, etc.
While the phone is updating its system
While the CASIO WATCHES phone app is not running on the phone
Note
If the watch does not indicate the correct time even if is able to connect with a phone, adjust the hand positions.
If there is a World Time City specified with the CASIO WATCHES phone app, its time will also be corrected automatically.
The watch connects with the phone and performs auto time correction at around 12:30 a.m., 6:30 a.m., 12:30 p.m. and 6:30 p.m. The connection is automatically terminated after auto time correction is complete.
Triggering Immediate Time Correction
The watch’s time setting is corrected automatically whenever you establish a connection between the watch and a phone. Whenever you want to trigger immediate time correction, perform the procedure below to connect with a phone.
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Enter the Timekeeping Mode.
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Move the phone close to (within one meter of) the watch.
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Press (D).
[TIME] flashes to indicate that the watch has started the connection operation. Once the watch and phone are connected, [OK] will appear, and then the watch will correct its time setting based on information from the phone.
At this time your current location is recorded by your phone.
Note
The connection is terminated automatically after time correction is complete.
If time correction fails for some reason, [ERR] will appear.
Receiving CASIO WATCHES Information on the Watch
You can configure settings so the watch receives CASIO WATCHES update and other information whenever it connects with a phone to adjust its current time setting.
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Perform the operation shown on your phone screen to enable app info receive.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Note
If app info receive is turned on, the watch receives CASIO WATCHES information as described below.
When the watch performs auto time correction four times per day
When you press (D) in the Timekeeping Mode to adjust the watch time setting
When you hold down (C) for at least three seconds to connect the watch with a phone.
When CASIO WATCHES information is received while the watch is in the Timekeeping Mode, the watch automatically switches to the app info screen.
Viewing Step Count Data
You can use the CASIO WATCHES phone app to view step count and calories burned data measured by the watch.
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Follow the instructions on the screen to display step count data.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Note
You can also use CASIO WATCHES to specify a daily step target.
Though the step count displayed by the watch changes in real time, there is a delay before it is transferred to the CASIO WATCHES phone app. Because of this, the step counts displayed by the CASIO WATCHES phone app may be different from those displayed by the watch.
Configuring World Time Settings
Specifying a World Time City with the CASIO WATCHES phone app causes the watch’s World Time City to change accordingly. Settings can be configured to perform auto summer time switching for the World Time City.
Note
The CASIO WATCHES phone app World Time lets you select from among approximately 300 cities as the World Time City.
You can use the CASIO WATCHES phone app to configure settings for user cities that are not included in the watch’s built-in World Time Cities. You must use the CASIO WATCHES phone app to select a user city as your World Time City.
To select a World Time City
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Perform the operation shown on the phone screen. The World Time setting will be reflected on the watch.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Configuring the Summer Time Setting
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Perform the operation shown on the phone screen to select a summer time setting.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
“Auto”
The watch switches between standard time and summer time automatically.
“OFF”
The watch always indicates standard time.
“ON”
The watch always indicates summer time.
Note
While the summer time setting is “Auto”, the watch switches between standard time and summer time automatically. You do not need to switch between standard time and summer time manually. Even if you are in an area that does not observe summer time, you can leave the watch’s summer time setting as “Auto”.
For information about summer time periods, refer to the “Summer Time Table”.
Swapping Your World Time and Home Time
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Perform the operation shown on the phone screen to swap your Home Time with your World Time.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Note
Auto time correction does not work for 24 hours after swapping the Home Time and World Time.
Adjusting Hand Alignment
If the hands are out of alignment even though auto time correction is being performed, you can use the CASIO WATCHES phone app to adjust them.
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Perform the operation shown on the phone screen to correct hand alignment.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Phone Finder
You can use phone finder to trigger a tone on the phone to make it easy to find. The tone is forced to sound even if the phone is in vibrate mode.
Important!
Do not use this function in areas where phone call tones are restricted.
The tone sounds at a high volume. Do not use this function when listening to phone output over earphones.
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If the watch is connected with a phone, press any button to terminate the connection.
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If the watch is in any mode besides the Timekeeping Mode, hold down (C) for at least one second to enter the Timekeeping Mode.
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Hold down (D) for at least three seconds. Release the button when [FIND] starts to flash at low speed.
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Press any button to stop the tone.
The phone sounds a tone when it establishes a connection with the watch.
It takes a few seconds before the phone tone sounds.
You can press any watch button to stop the phone tone only during the first 30 seconds after it starts to sound.
Configuring Watch Settings
Alarm time, timer start time, and other settings can also be configured using the CASIO WATCHES phone app.
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Select the setting you want to change and then perform the operation shown on the phone screen.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Changing the Home City Summer Time Setting
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Perform the operation shown on the phone screen to change your Home City summer time setting.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Checking the Watch Charge Level
Use the procedure below to check the current charge level with CASIO WATCHES.
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Use CASIO WATCHES to check the charge level.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Recording Your Current Location (TIME&PLACE)
While traveling or otherwise on the go, you can use the procedure below to record your current location, along with the time and date, on your phone. Recorded location information can be viewed on the CASIO WATCHES phone app map.
Recording Your Current Location
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Enter the Timekeeping Mode.
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When you are in the location you want to record, press (D).
This records, in phone memory, the latitude and longitude of the location you are in when you press the button, along with the date and time.
[OK] appears when registration is complete. [ERR] appears when registration fails.
At this time, the time settings of your phone and watch are synced with each other.
Viewing a Recorded Location on a Map
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Tap the “CASIO WATCHES” icon.
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Perform the operation shown on the phone screen to view recorded location information.
Note
You can use the CASIO WATCHES phone app to delete recorded location information.
Connection
Connecting with a Phone
Your watch can connect with a phone that is paired with it.
If the watch is not paired with the phone you want to connect with, refer to the information below and pair them.
Connecting with a Phone
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Move the phone close to (within one meter of) the watch.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Important!
If you have problems establishing a connection, it could mean that the CASIO WATCHES phone app is not running on your phone. On your phone’s home screen, tap the “CASIO WATCHES” icon. After the app starts up, hold down the watch’s (C) button for at least three seconds.
Note
The connection is terminated if you do not perform any operation on the watch or phone for a fixed amount of time.
To specify the connection limit time, perform the following operation with the CASIO WATCHES phone app: “Watch settings” 
“Connection time with the app”. Next, select a setting of 3 minutes, 5 minutes, or 10 minutes.
Disconnecting from Your Phone
Pressing any button terminates a Bluetooth connection and return to the Timekeeping Mode.
Using the Watch in a Medical Facility or Aircraft
Whenever you are in a hospital, on an aircraft, or in any other location where connection with a phone may cause problems, you can perform the procedure below to disable auto time correction. To re-enable auto time correction, perform the same operation again.
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Tap the “CASIO WATCHES” icon.
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Hold down (C) for at least three seconds. Release the button when and [CNCT] start to flash.
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Perform the operation shown on the phone screen to enable or disable auto time correction.
When a connection is established between the watch and phone, and [CNCT] stop flashing and remain on the display.
If connection fails for some reason, [ERR] will appear on the display momentarily and then the watch will return to the Timekeeping Mode.
Unpairing
To unpair the watch from a phone, delete the pairing information from the CASIO WATCHES phone app, the phone, and the watch.
Deleting Pairing Information from the CASIO WATCHES phone app
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Tap the “CASIO WATCHES” icon.
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Perform the operation shown on the phone screen to unpair.
Deleting Pairing Information from the Watch
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Hold down (C) for at least one second to enter the Timekeeping Mode.
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Hold down (A) for at least two seconds.
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Press (C) four times.
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Hold down (B) for at least three seconds. Release when and [CLR] stop flashing.
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Press (A) to return to the Timekeeping Mode.
This causes the current step reminder setting ([ON] or [OFF]) to flash on the display.
This causes the seconds to flash.
This deletes the pairing information from the watch and returns to the timekeeping display.
Note
While the setting is being configured, the watch will exit the setting operation automatically after about two or three minutes of non-operation.
Deleting the phone’s pairing information
For details about setting procedures, see your phone documentation.
“Settings” “Bluetooth” Cancel the watch’s device registration.
If you purchase another phone
You need to perform the pairing operation whenever you want to establish a Bluetooth connection with a phone for the first time.