Free

Details

  • Released
  • Updated
  • February 16, 2020
  • August 17, 2020
GBA-400+ screenshot #1 for iPhone
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About

Connect your compatible CASIO watch to your iPhone to unlock enhanced mobile link functions. This app simplifies watch operations by allowing you to control them from your phone's screen. It requires location services to be set to 'Always' for accurate time synchronization.

Bluetooth v4.0 connectivity
Mobile Link functions
Simplified watch operations via phone
Accurate time synchronization
iPhone integration
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What's New in GBA

1.0.1

August 17, 2020

Stability improved, minor bugs eliminated.

User reviews

Not Working

The app was designed for iOS 11 and hasn’t been updated in at least 4 years (sometime around 2021, give or take some months). As I write this, we’re up to iOS 18.4.1; while the app does launch, it fails to pair every time with the G-Shock “G’Mix” GBA-400 watch. The app will detect the watch when the watch is in setup mode (the mode after the countdown timer) and you hold down the connect button for about a half-second, but it fails to pair every time. Attempts to pair with the watch in any other mode will fail with the app not even getting as far as detecting the watch. I wish I could say I was surprised, but we are talking about a watch that a) requires a separate app when Casio is merging their watches of all brands to use one app, b) only had 11 models, and c) was discontinued in 2015. So if you have a GBA-400, it’s a nice historical artifact but don’t expect the music player controls to work. It will otherwise function the same as its physical counterpart, the GA-400, which shares the same case and strap design and has a nearly-identical digital-analog face right down to the hour and minute hand designs, but has a simpler module with no Bluetooth or music player functions. So as much as I can’t really blame Casio for not updating an orphan app for an orphan watch, the app is useless without an update to run on current versions of iOS - it now deserves zero stars, but one is the minimum.
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Not able to connect with newer phone anymore

As title

Please update this app

Pause button skip btuttons the old style Gmix please update this app gshock is gshock that’s forever please update for the gshock Gmix thank you

Pause button

Pause button won’t work. Only the volume does

My watch works again!

Not sure what changed at Casio, but the new App for this older model works so much better than the last one. I’ve had my GBA-400 for 4 years now and have had countless compliments on it. Having the functionality of the software which I had lost about a year and a half ago is awesome.

Developer apps

FAQ

What watches are compatible with GBA-400+?

The GBA-400+ app is specifically designed for the CASIO GBA-400 watch model. Ensure you have this model to utilize the app's features.

What operating systems does GBA-400+ support?

GBA-400+ is recommended for iOS 12 or later. Operation is not guaranteed on operating systems not listed, and updates or display specifications may affect performance even on compatible systems.

Why does GBA-400+ need location information?

The application uses location information to obtain accurate time. For this to function correctly, you must set 'Location Service' in your iPhone's privacy settings to 'Always'.

Can GBA-400+ be used offline?

The core functionality of GBA-400+ relies on Bluetooth connectivity to a compatible CASIO watch. While some watch functions may operate independently, the mobile link features require an active connection.

How often is GBA-400+ updated?

The latest version of GBA-400+ is 1.0.1, which was last updated on August 17, 2020. Future updates will depend on CASIO's development schedule.

What is the user sentiment for GBA-400+?

GBA-400+ has an average rating of 3.7 stars from 9 ratings. This suggests a mixed user reception, with some users finding it useful and others potentially experiencing issues.

Does GBA-400+ have ads?

No, GBA-400+ does not contain advertisements. The app is free to download and use without interruptions from ads.

Where can I find help for connection issues with GBA-400+?

For problems such as being unable to connect or operate the watch, please refer to the FAQ link provided by CASIO: https://support.casio.com/en/support/faqlist.php?cid=009001019