GBA-400+
Free
rated 2.4 stars
50,000+
downloads
About GBA-400+
This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled G-SHOCK.
Pairing the watch with your smartphone enables use of a variety of different Mobile Link functions that greatly enhance the smartphone experience. The GBA-400+ app also simplifies certain watch operations by letting you perform them on your phone screen.
Visit the website below for details.
http://world.g-shock.com/
We recommend using GBA-400+ 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.
GBA-400+ cannot be used on Android feature phones with arrow keys.
⋅ Android 8.0 or later.
Please refer to the FAQ link below to resolve problems such as being unable to connect or operate the watch.
https://support.casio.com/en/support/faqlist.php?cid=009001019
Supported G-SHOCK Models: GBA-400
GBA-400+ Screenshots
Reviews for GBA-400+
V'dyn'rhy
11/4/2025
App is SUPER buggy, phone finally connects but now refuses to recieve direction from the app ie got to winter time from summer. App says setting sent but watch tells it to get stuffed....
Dhivakar Sathyamurthy
9/15/2025
doesn't work.
PinoyBreezy
7/11/2025
i cant connect my gba 400
VISHaL
6/16/2025
can't connect with my Samsung s24
Arka Provo Paul
1/15/2025
I have my old G-Shock Gba400 (purchased on 2018) and im unable to pair it with my phone it always shows please try again and I have done almost all the steps to troubleshoot it. I have cleared pairing data on both phone and Watch, I changed the battery,i reinstalled the app I Redownloaded the original app "G-SHOCK+" still i am unable to connect with the watch The device i am using is Poco X5 Pro Running android 14.
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