With so many mobile network cards in Singapore, which one do you prefer?

Many foreign students or friends on business trips have asked this question. There are more than a dozen in Singapore, among which three are the most famous, namely Singtel, Starhub and Mobile One(M 1). Singtel is the best and most expensive, and M 1 is the cheapest but the signal is the worst. I suggest you choose the card that reports to cmlink first. They also use Singtel's signal, but the price is more realistic and can be bound to domestic mobile cards. You can also receive domestic verification code SMS in Singapore, which is very practical!