All Group B destinations now has 5G data roaming support

SIMBA users can now roam on Australia Vodafone in 5G+VoLTE. With 5G, you get better faster downloads and VoLTE gives you free voice calls in (roaming) and back to Singapore for free without needing the SIMBA Voice app.

This makes it the newest to be added in the list that supports both 5G & VoLTE (for supported devices)

CountryTelco
AustraliaVodafone
FinlandElisa
Hong KongHutchison
DenmarkNuuday (TDC)
MalaysiaCelcom
New ZealandSpark
ThailandDTAC
PhilippinesSmart Communications
South KoreaSK Telecom
USAVerizon

Iceland, India, Indonesia, China, Japan, Taiwan only has VoLTE and 4G data roaming.