OCEANUS Connected 4+


    • 4.5 • 93 Ratings
    • Free

iPhone Screenshots


Important - Please Read

Request to Transfer to the CASIO WATCHES App (Support Termination Notification)
The functionality of this app will be transferred to the new watch app, CASIO WATCHES.
By updating to version 3.0, users of this app will be able to transfer their user data to CASIO WATCHES via this app.

While we understand this may be inconvenient for some users, we ask that you transfer your data across, and continue using CASIO WATCHES in place of this app.

This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled CASIO watch.
Pairing your watch with an iPhone enables use of a variety of different Mobile Link functions that greatly enhance the iPhone experience.
The OCEANUS Connected app also simplifies certain watch operations by letting you perform them on your phone screen.

Visit the website below for details.

We recommend using OCEANUS Connected on the following operating systems.
Operation is not guaranteed for any operating system not listed below.
Even if an operating system has been confirmed as compatible, software updates or display specifications may prevent proper display and/or operation.

⋅ iOS 14 or later.

Applicable Watches: OCW-G2000, OCW-S4000, OCW-T3000, OCW-T200, OCW-S5000, OCW-P2000, OCW-T4000
*Some watches unavailable in your region may be displayed in the application.

This application uses location information to obtain accurate time.
For "Location Service" in iPhone privacy settings, please "Always". If it is not "Always", the application will not work properly.
Continued use of GPS running in the background can dramatically decrease battery life.

What’s New

Version 3.0

Data Transfer to CASIO WATCHES (Support Termination Notification)

Ratings and Reviews

4.5 out of 5
93 Ratings

93 Ratings

JHannah4 ,

Do this before pairing the watch

For anyone with the model OCW-T200 do this before pairing the watch to your phone.

Pull out the crown two clicks. Hold the button for ~10 seconds until the seconds hand goes to C. Release the button, let the second hand return to the previous position and then push the crown in. This procedure unpairs the watch from the phone. It may have been paired with another phone prior which is causing issues. This information is not in the instruction manual. Once I performed this procedure the App works flawlessly.

Kjhcknjkjbsfvknu ,

Great app, very useful!

This is a great companion app for your supported Oceanus watch. It makes syncing the time very reliable, enables managing various watch settings and on some phones enables other features like a phone finder and monitoring watch charge levels. The app as it's used for my S5000 could be improved. I like the graph but I would like to view time self adjustment events as a table where I could see distinct Bluetooth and MB6 adjustment events.

intra312 ,

Great app

Works exactly as it’s supposed to. No idea what the bad review was about but the phone isn’t supposed to get radio waves to adjust. Only the watch does and as soon as you’re not using the app it can receive radio signals to update. The way the watch updates time with the app is through Bluetooth and it does a very good job at that. Love this watch and the app.

App Privacy

The developer, CASIO COMPUTER CO., LTD., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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