If you want to experience M1’s 5G SA network, consider the Circles.Life plan. With a Promo Code, it costs only S$11 for the first 3 months, then reverts to $16 per month. The plan includes 100 GB of 5G data, unlimited incoming and outgoing calls, and free Caller ID. Additionally, it comes with 25 bundled SMS. This plan doesn’t come with any free data roaming overseas.

You can also port in prepaid now to Circles.Life postpaid directly (according to Circles.Life). That saves you the hassle of upgrading your prepaid plan to postpaid before porting out.