Citizen YF20 Instruction Manual
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Citizen YF20 Instruction Manual

Citizen YF20 Instruction Manual

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ENGLISH
Thank you for your purchase of this product.
Before using the watch, read this instruction manual carefully to ensure correct use.
Instruction manual on the web (Cal. No. YF20)
You can access the web instruction manual of this watch using the QR code.
https://www.citizenwatch-global.com/support/html/en/yf20/yf20.html
• Refer to the web manual to check the latest news and
information.
• You can also see how to use enhanced features and
functions such as slide rules and tachymeters on the web
site. It depends on models whether they are equipped with
enhanced features and functions or not.

Safety precautions

"Precautions" provided with the product contains instructions that should be
strictly followed at all times not only for optimal use, but to prevent any injuries to
yourself, other persons or property.
Make sure to read it through before using the product.

Features

Connection with a smartphone through the dedicated app
Time and calendar are synchronized with those on the smartphone.
To get the dedicated app, access a download site of apps for your
smartphone.
Built-in activity monitor and heart rate sensor
The watch records your activity and heart rate and you can see their
data on the dedicated app.
User-configurable buttons
You can assign three functions to the buttons of the watch as you want
by setting them on the dedicated app.
• [Riiiver]
• [WORKOUT MODE]
• [WELLNESS DASHBOARD]
• [STOPWATCH]
• [PAST NOTIFICATIONS]
Permanent indication on the display
The watch is equipped with an electronic paper display. It can always
indicate up to 4 items you choose from the information items below.
• [Riiiver]
• [SECOND TIMEZONE]
• [DAY-DATE]
• [CURRENT TEMPERATURE]
• [HEART RATE]
Appearance of the display (watch face) can freely be customized.
What is Riiiver?
Riiiver is a unique service platform which provides
connection between watches and the Internet through a
special app on your smartphone.
On this watch, you can add functions prepared on the
Riiiver platform to the watch by choosing "Riiiver" when
assigning functions to watch buttons or choosing display
items.
• It is limited that regions where the Riiiver service is
available. It is not available in places where the Riiiver
service is not provided.
YF20 instruction manual
• [MUSIC CONTROL]
• [TIMER]
• [WEATHER]
• [COMMUNE TIME]
• [CONNECT CHALLENGE]
• [CHANCE OF RAIN]
• [STEPS]
• [CALORIES]
• [ACTIVE MINUTES]
• [BATTERY]
CONTENTS
Safety precautions ..................................................................
Features .................................................................................
Before using this watch ...........................................................
Protective stickers .................................................................................
Charging your watch ..............................................................................
Component identification .......................................................
About the display of the watch ................................................
Renewing indication on the display .......................................................
Turning on the light ...............................................................................
Before connecting with a smartphone .....................................
Requirements for connection.................................................................
Execute pairing with the smartphone ......................................
Executing pairing ..................................................................................
Synchronizing your watch and smartphone .............................
Adjustment of the time and calendar ......................................
Acceleration sensor and heart rate sensor ................................
Settings on the watch body .....................................................
The screen of the dedicated app ..............................................
[Home] screen .......................................................................................
[Challenge] screen .................................................................................
[Customization] screen ..........................................................................
[Alerts] screen .......................................................................................
[Profile] screen ......................................................................................
Changing settings of the dedicated app ...................................
Checking the status of the connected watch ............................
Switching the set of the buttons ..............................................
Customizing the watch face ...................................................
Setting alarm .......................................................................
Setting notification ..............................................................
About the menu on the watch ...............................................
Using the timer ....................................................................................
Bluetooth® wireless technology ............................................
Specifications .......................................................................
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Summary of Contents for Citizen YF20

  • Page 1: Table Of Contents

    Thank you for your purchase of this product. Before using the watch, read this instruction manual carefully to ensure correct use. CONTENTS Instruction manual on the web (Cal. No. YF20) You can access the web instruction manual of this watch using the QR code. Safety precautions ..............

  • Page 2: Before Using This Watch

    Be sure to remove any protective stickers that may be on your watch (case back, communication technology. band, clasp, etc.). Otherwise, perspiration or moisture may enter the gaps between You must install the dedicated app “CITIZEN the protective stickers and the parts, which may result in a skin rash and/or Start up the app CONNECTED”...

  • Page 3: Execute Pairing With The Smartphone

    • For pairing, you have to operate both the watch and the smartphone. • Turn on Bluetooth® and function(s) related with location information on your smartphone. Download the dedicated app “CITIZEN CONNECTED” at an app site and install Start the dedicated app. • Keep the app screen displayed until pairing is finished.

  • Page 4: Synchronizing Your Watch And Smartphone

    YF20 instruction manual Acceleration sensor and heart rate sensor To start pairing on the screen of the app When you canceled pairing before, tap [PAIR YOUR FIRST WATCH] or [+ADD] on This watch is equipped with a built-in acceleration sensor and a heart rate sensor.

  • Page 5: The Screen Of The Dedicated App

    YF20 instruction manual The screen of the dedicated app Press and release the lower right button or the upper right button repeatedly to choose an item of the sub menu. The dedicated app has the following 5 different screens. Tap the five icons at the bottom of the display to switch the screens.

  • Page 6: [Customization] Screen

    YF20 instruction manual [Customization] screen [Profile] screen You can assign various functions to the buttons of the watch and change indication It is the screen for setting the account, adding watches, referring to the help and of the display (watch face) on this screen.

  • Page 7: Changing Settings Of The Dedicated App

    YF20 instruction manual Changing settings of the dedicated app Checking the status of the connected watch Start the dedicated app. Start the dedicated app. The watch and the smartphone are connected. The watch and the smartphone are connected. • If you have not signed up, sign up.
  • Page 8 YF20 instruction manual Executing settings for functions and assigning them to the Tap the function you want to assign on the bottom of the screen. You can choose one from the functions below. buttons of the watch Use this to assign an iiidea of Riiiver to a button as a function.

  • Page 9: Switching The Set Of The Buttons

    YF20 instruction manual Switching the set of the buttons Removing the set Tap [DELETE] on the upper left of the screen to remove the set displayed on the It is convenient to make function sets for the buttons for various purposes and screen.

  • Page 10: Customizing The Watch Face

    YF20 instruction manual Choose a watch face you want to use for the display of your watch and tap Tap the icon ( ) on the display of the watch figure on the [Customization] its download icon. screen. Download of the watch face starts.
  • Page 11 YF20 instruction manual Tap [GALLERY] on the bottom of the screen. Tap the icon ( ) on the display of the watch figure. • Watch faces for indicating information through Riiiver are not shown on the list Tap . in places where the Riiiver service is not available. Even after choosing a watch face for Riiiver, it is not shown in places where the Riiiver service is not provided.
  • Page 12 YF20 instruction manual Tap the icon ( ) on the bottom of the screen. Tap an information item on the display of the watch figure. The list of information items is shown on the bottom of the screen. • The example shows when you tap the upper item, [HEART RATE].

  • Page 13: Setting Alarm

    YF20 instruction manual Changing alarm setting Setting alarm Tap the alarm time on [ALARMS] of the [Alerts] screen and change the time setting. • Tap the trash icon ( ) on the upper right of the screen to remove setting.

  • Page 14: Setting Notification Not To Keep Sitting For A Long Time

    YF20 instruction manual Setting notification not to keep sitting for a long time Tap [Call & Messages] or [Apps] of [NOTIFICATIONS] on the [Alerts] screen. This watch has the notification function to tell you to stand up when it detect that you have had no action a certain period time while studying or working.

  • Page 15: Checking And Correcting The Reference Position

    YF20 instruction manual Checking and correcting the reference position Tap [Calibration]. The reference position of the hour hand becomes adjustable. Check and adjust the reference position through the dedicated app. If the time or calendar is not shown correctly even after connecting with the smartphone, check whether the reference position is correct.

  • Page 16: Using The Timer

    YF20 instruction manual To return to normal indication Press and release the lower right button or the upper right button Press and hold the middle right button of the watch to return to normal the watch repeatedly to switch the function to use.

  • Page 17: Bluetooth® Wireless Technology

    YF20 instruction manual Bluetooth® wireless technology Press the lower right button of the watch. “·” at the left of [15 min] moves to the left of [Custom]. Regulatory concerning to Bluetooth® (Areas where Bluetooth® is available) Use of the Bluetooth® communication technology is not legally permitted in some countries or regions.

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