What does "on my galaxy" mean?

[Galaxygrl]

I noticed that at first I was able to see the video call option for friends that have galaxy phones as well, but today the video call option is gone & I just see "on my galaxy!" Next to these contact's names. What does this mean?

 

[B. Diddy]

Welcome to Android Central! Are those contacts which are only saved locally to the phone, rather than your Google account in the cloud?