How is the network/service of the mobile provider Giga?

Hi hi Kelly Trinh! giga uses StarHub’s network to provide mobile services. giga service gives access to 3G & 4G coverage (but does not include VoLTE)! -Leera ​​​

Avoid giga at all costs. If you're lucky, the process works fine and the only hiccup is the awful app. But if you're not lucky, then it's really not worth it. Service doesn't exist at all. There is no line to call, there is only one live agent and you have to wait hours to get to him. Emails for help don't even get looked at. So if they mischarge you or you buy a roaming package and it doesn't work, there will be no refunds. For me, that's not worth the couple dollars saved at all.