Before Using This Watch; Protective Stickers; Charging Your Watch; Component Identification - Citizen YF20 Instruction Manual

Before using this watch

Protective stickers

Be sure to remove any protective stickers that may be on your watch (case back,
band, clasp, etc.). Otherwise, perspiration or moisture may enter the gaps between
the protective stickers and the parts, which may result in a skin rash and/or
corrosion of the metal parts.

Charging your watch

Charge the built-in secondary battery using the special battery charger to use this
watch.
For details, see "Quick start guide" and "Charging cord" provided with the product.

Component identification

Hour hand
20
FRI
Display
• The illustrations in this instruction manual may differ from the actual appearance
of your watch.

About the display of the watch

This watch is equipped with an electronic paper display. Owing to the display, the
watch can always indicate various information with little consumption of power
reserve. On the other hand, unlike an ordinary LCD, indication is not always
renewed.
To see current total steps or other real-time data, you need to renew indication
intentionally.

Renewing indication on the display

Twist your wrist quickly, and the hands on the watch move and the indication on the
display is refreshed.
• Try the twist again if the hands do not move.

Turning on the light

Tap the center of the display twice to turn on the light.
• The light is turned off automatically without any operation.
Minute hand
Button C
75
Button
72°
Button A

Before connecting with a smartphone

This watch communicates with smartphones
through Bluetooth® Low Energy power-saving
communication technology.
You must install the dedicated app "CITIZEN
CONNECTED" on your smartphone and start it to
make pairing between the phone and the watch to
connect them.
The flow of connection is as follows.
• The Bluetooth® word mark and logos are registered
trademarks owned by Bluetooth SIG, Inc.
• Android is a registered trade mark of Google LLC.
• iOS is a name of an operating system of Apple Inc.
IOS is a trademark or registered trademark of Cisco
Systems, Inc. or its affiliates in the U.S. and other
countries, and is used under license.

Requirements for connection

Android
B
iPhone
Bluetooth®
• You cannot install the dedicated app when your smartphone is not compatible
with it.
• The app may not be warranted to work correctly even when your smartphone
fulfills requirements.
• Update of the dedicated app may be ceased after the end of production of the
watch.
Actual screens and/or indication of the dedicated app may differ from those on
this manual depending on your usage conditions and/or changes of specifications
at update of the app.
In that case, follow instructions on the actual screen of the app.
Android OS 5.0 - 11.0
iOS 10.0 - 15.0
Bluetooth smart compatible/ 4.2 Low Energy
YF20 instruction manual
Install the dedicated app
Start up the app
Sign up/log in
Pairing
Connection
Disconnection
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