- What do you look for?
- In the list you've so graciously compiled, which plan and operator would you go with?
That might be the wrong questions to ask.
How about what is important to you ?
Ok, maybe to guide you along :
1) Do you need/want 5G ?
2) How important is roaming for you ?
2a) Which countries are you likely to need roaming for ?
2b) How much roaming data do you need
2c) Do you need to voice service during roaming ? For incoming calls ? Call SG ? Call local numbers ?
2d) Do you need to send SMS when roaming ?
3) How much local data/call/sms do you need ?
4) Do you need wifi calling/VoWifi ?
5) Do you need esim ?
6) Do you have preference for billing cycles ? (30Days, calendar month, day of month)
7) Are you price sensitive ?
A good answer to question 2 alone might eliminate a large number of potential options.
Another crucial point to take into consideration is the coverage & performance for areas that you frequent, bearing in mind the use case for each line. Of particular concern will be places like basement, carparks, deep inside big malls, outlying areas like the mandai catchment, islands etc. This is where the placement of base station/repeater & the performance of the low bands like 700 & 900 MHz comes into play.
It is very specific to each person and how one uses the line. Eg :
For home mobile broadband, the only thing that matters is the performance & consistency at your home, & your data usage can be met by the plan.
If you frequent a location that has very poor reception for all but one provider, your decision is already made for you, all is left is which MVNO to pick or perhaps the MNO itself.
If you are often at remote location, Singtel & its MVNO are likely to be more suitable, but it can still depends, more than once I have seen Singtel trashed by Simba or M1 at specific location.