For me I use eSIM for Singtel hi! with online sign-up.
Last time SIngtel hi! 4G plan was porting from CUniq 4G. I wanted to try out my eSIM adapter (which may only support 4G) at that time.
M1 Maxx S$10 5G (online, physical SIM) --> Cuniq S$9.9 4G (online, physical SIM) --> Singtel hi! S$10 4G plan (online, eSIM) --> terminated
This time my wife will use it and her iPhone 14 has only single SIM Card so need to use eSIM.
Zym S$10.1 4G with free 180 days 5G trial (physical shop, physical SIM) --> Singtel hi! S$13 5G (online, eSIM).
If I were to use it, I will carry out the porting at physical shop. The physical shop I signed up for Zym (HELLO STATION @ JURONG POINT, #03-86) also provide service for Singtel hi!, along with Maxx, CMLink and eight. The other physical shop I signed up for SIMBA and CL 5G free trial (Boon Lay Bus Interchange Wall Cabinet C) also provides service for Singtel hi!, along with eight, SIMBA and CL.