Features

ⓘ Notice


W410

October 31, 2023

Thank you for using the W410 watch.

We decided to change specifications related with the “Light Level” function partially, which gives you graphic indication of power generation amount of the watch, as users of data-backup service of power generation amount have declined.

We will carry on update of the dedicated app according to the change of the specifications.

After the update, past data of power generation amount are removed when you change your smartphone or remove the app.

We are very sorry for inconvenience and thank you in advance for your understanding.


1. Target app

CITIZEN Eco-Drive Bluetooth S (dedicated app for W410)

2. Scheduled date for specification changing

Android: October 31, 2023

iOS: November 15, 2023

3. Version of app in which new specifications are implemented

Android: Ver. 1.0.058 or later

iOS: Ver. 1.0.052 or later

4. Changed specifications

Before changing: power generation data are kept on the dedicated app and our management server.

After changing: the data mentioned above are kept on the dedicated app only. Past power generation data is removed when you change your smartphone or remove the dedicated app. Errors may occur when you use “Light Level” on an older version of the app.

*Functions other than above are available as well as those before the change of specifications.

October 31, 2023

Thank you for using the W410 watch.

As we noticed on June 8, 2023, on the dedicated app, settings for the filtering function of X (former Twitter) have been unavailable.

This time we decided to change specifications and remove the filtering function on the dedicated app.

By executing notification settings on the X official app, you will be able to get equivalent result as the filtering function gave you.

We are very sorry for inconvenience and thank you in advance for your understanding.


1. Target app

CITIZEN Eco-Drive Bluetooth S (dedicated app for W410)

2. Scheduled date for specification changing

Android: October 31, 2023

iOS: November 15, 2023

3. Version of app in which new specifications are implemented

Android: Ver. 1.0.058 or later

iOS: Ver. 1.0.052 or later

4. Changed specifications

Before changing: you can execute filtering settings for notifications from X on the dedicated app.

After changing: the filtering function for notifications from X is removed from the dedicated app. To apply filter to notifications from X, execute related settings on the X official app.

*Functions other than above are available as well as those before the change of specifications.

June 8, 2023

Setting filtering for notifications from Twitter is currently unavailable on the dedicated app.

Very sorry for inconvenience.

Modify settings on the Twitter app to control notifications from it.

September 29, 2022

Modified "iOS 11.4 - 15.4" to "iOS 11.4 - 15.7" in "Requirements for connection" of "Compatible smartphones".

April 6, 2022

Modified "iOS 11.4 - 15.3" to "iOS 11.4 - 15.4" in "Requirements for connection" of "Compatible smartphones".

March 3, 2022

Modified "iOS 11.4 - 15.1" to "iOS 11.4 - 15.3" in "Requirements for connection" of "Compatible smartphones".

February 22, 2022

Modified "Android OS 7.0 - 11.0" to "Android OS 7.0 - 12.0" and "iOS 11.4 - 14.8" to "iOS 11.4 - 15.1" in "Requirements for connection" of "Compatible smartphones".

October 5, 2021

Modified "iOS 11.4 - 14.7.1" to "iOS 11.4 - 14.8" in "Requirements for connection" of "Compatible smartphones".

September 17, 2021

Modified "iOS 11.4 - 14.6" to "iOS 11.4 - 14.7.1" in "Requirements for connection" of "Compatible smartphones".

July 30, 2021

Modified "iOS 11.4 - 14.5" to "iOS 11.4 - 14.6" in "Requirements for connection" of "Compatible smartphones".

June 28, 2021

Modified "Android OS 7.0 - 10.0" to "Android OS 7.0 - 11.0" and "iOS 11.4 - 14.3" to "iOS 11.4 - 14.5" in "Requirements for connection" of "Compatible smartphones".

March 1, 2021

Modified "iOS 11.4 - 14.2" to "iOS 11.4 - 14.3" in "Requirements for connection" of "Compatible smartphones".

December 25, 2020

Modified "iOS 11.4 - 14.1" to "iOS 11.4 - 14.2" in "Requirements for connection" of "Compatible smartphones".

November 13, 2020

Modified "iOS 11.4 - 13.7" to "iOS 11.4 - 14.1" in "Requirements for connection" of "Compatible smartphones".

September 28, 2020

Modified "iOS 11.4 - 13.4" to "iOS 11.4 - 13.7" in "Requirements for connection" of "Compatible smartphones".

June 9, 2020

Modified "iOS 11.4 - 12.4" to "iOS 11.4 - 13.4" in "Requirements for connection" of "Compatible smartphones".

January 24, 2020

Modified "Android OS 7.0 - 9.0" to "Android OS 7.0 - 10.0" in "Requirements for connection" of "Compatible smartphones".

October 30, 2019

Updated the list of "Regulatory concerning to Bluetooth (Areas where Bluetooth is available)" in "Bluetooth 4.0 wireless technology".

September 24, 2019

Modified "iOS 11.4 - 12.3" to "iOS 11.4 - 12.4" in "Requirements for connection" of "Compatible smartphones".

July 9, 2019

Modified "iOS 11.4 - 12.1" to "iOS 11.4 - 12.3" in "Requirements for connection" of "Compatible smartphones".